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Meeting India’s Future
Power Needs
Planning for Environmentally
Sustainable Development
Meeting India’s Future
Power Needs
Planning for Environmentally
Sustainable Development
The World BankThe World Bank
Meeting
India’s Future
Power Needs
Planning for
Environmentally
Sustainable
Development
The World Bank
Washington, D.C.
Copyright © 1999
The International Bank for Reconstruction
and Development/THE WORLD BANK
1818 H Street, N.W.
Washington, D.C. 20433 USA
All rights reserved
Manufactured in the United States of America
First Printing October 1999
This report has been prepared by the staff of the World Bank. The judgments expressed do
not necessarily reflect the views of the Board of Executive Directors or of the governments they
represent.
The material in this publication is copyrighted. The World Bank encourages dissemination
of its work and will normally give permission promptly.
Permission to photocopy items for internal or personaluse, for the internal or personal use
of specific clients, or for educational classroom use, is granted by the World Bank, provided
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Drive, Danvers, MA 01923, U.S.A., telephone 978–750–8400, fax 978–75-–4470. Please contact
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For permission to reprint individual articles or chapters, please fax your request with
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All other queries on rights and licenses should be addressed to the World Bank at the
address above or faxed to 202–522–2422.
Cover photograph: NTCP power station at Ramagundam, courtesy of National Thermal
Power Corporation, Ltd.
ISBN 0-8213-4309-2
1. World Bank. 2. Rural development—Finance. 3. Rural development projects—Finance. 4.
Infrastructure (Economics)—Finance.
I. Title. II. Series: Environmentally and socially sustainable development series. Rural develop-
ment.
HG3881.5.W57P68 1998
362.1’532—dc21 96–32776
CIP
iii
Contents
1. A Time for Decisions ..............................................................................................1
2. Options for Reducing Environmental Impacts .......................................................5
Reforming and Restructuring the Power Sector .................................................................. 5
Rehabilitating Generating Plants and Transmission and Distribution Networks .................. 7
Managing Demand.............................................................................................................. 8
Using Renewable Energy Supplies ..................................................................................... 9
Internalizing the Costs of Pollution ................................................................................... 13
Reducing and Recycling Combustion By-Products .......................................................... 15
Siting Plants to Reduce Environmental Damage ............................................................... 19
Using Options in Combination ......................................................................................... 20
3. From Knowledge to Action..................................................................................23
Applying the Decisionmaking Process and “Toolkit” ........................................................ 23
References...................................................................................................................27
Boxes
1. The Year 2015—The “Business as Usual” Scenario .................................................2
2. Incentives and Subsidies .....................................................................................10
3. Constraints ............................................................................................................11
4. Applications for Coal Ash ....................................................................................17
5. Elements of the Participatory Planning Process ....................................................25
6. A “Toolkit” for State-Level Energy Planning...........................................................25
Figures
1. “All India” Emissions by Region in 2015.................................................................3
Tables
1. Summary of Emissions under the Reform Scenario in Bihar, 2014/2015 ................7
2. Estimated Tenth-Year Savings from Technologies in Andhra Pradesh....................9
3. Estimated Electricity Saved through Demand-Side Management .........................9
4. Potential Contribution of Renewable Energy Technologies .................................10
5. Existing Air Quality Standards for the Ministry of Environment and Forestry.......14
6. Andhra Pradesh—Cumulative Pattern of Generation Mix ....................................21
7. Andhra Pradesh—Impact on Cost and the Environment.....................................21
1
A Time for Decisions
Unquestionably, power plays a funda-
mental role in the economic development
process.All countries seek to ensure a sup-
ply of electricity that is affordable, reliable,
andsecureinordertosustainmodernways
of living. Producing electricity to meet
modern needs affects the environment on
a local, regional, and global basis. As de-
veloping countries, including India, de-
mand increasing amounts of electricity to
sustain their economies, long-term plan-
ning is needed to balance this growing
need for power and environmental con-
cerns. Practical strategies are needed to
minimize the impact of growth on the en-
vironment and, through the environment,
on human health and well-being.
India’s large reserves of coal are a
major asset to the country, accounting for
70 percent of India’s current production
of electricity. However, excessive use of
this form of energy production—espe-
cially without the use of strategies to miti-
gate its effects—will cause the quality of
the country’s air, land, and water re-
sources to deteriorate. Specifically,
• Small particles from combustion even-
tually reach the ground, threatening
human health and property.
• Disposing of the ash that is produced
as a byproduct of combustion requires
large amounts of land; leaching ash
can contaminate ground water.
• Carbon dioxide released from fuel by
combustion contributes to global
warming and climate change.
• Power stations may require large, and
frequently environmentally valuable,
land areas.
• Large hydro and coal projects require
resettlement and rehabilitation, and
affect people.
• Acid gases that are produced when
fossil fuels are burned are eventually
precipitated as acid rain.
Avoiding environmental damage
from the development of energy resources
is among the key priorities of the South
Asia environmental strategy for the en-
ergy sector. Other priorities include the
following:
• Dealing with indoor air pollution from
the use of traditional fuels, especially
in rural households
• Protection from urban air pollution
• Developing better environmental gov-
ernance
• Mitigating the potential impacts of
global climate change
• Making the Bank more responsive to
energy-environment impacts.
Studies to date have clearly demon-
strated that continuation of current poli-
cies and practices in the power sector is
not sustainable in financial terms. Prices
today for electricity and fuels in India are
distorted; electricity is often sold to agri-
cultural consumers at prices that are well
below the costs of production. This prac-
tice leads to waste of electricity and also
2 A Time for Decisions
Box 1. The Year 2015—The “Business as Usual” Scenario
Without significant changes in power sector policy, by the year 2015
• India will be producing SO2
, NOx
, particulate emissions, and ash at three times the
current levels
• Ash disposal facilities around power plants will require 1 square meter of land per
person
• CO2
emissions will be 775 million metric tons per year, as compared with 1,000 mil-
lion metric tons per year now produced by power generation in the entire European
Union.
impairs the finances of state electricity
boards. The poor financial condition of the
boards may make it difficult to invest in
new plants and maintain existing plants
properly, especially environmental control
equipment not essential to plant operation.
Case studies for Andhra Pradesh and
Bihar, states facing different energy chal-
lenges with varying resources, show that
the financial performance of the power
sectors in both states will impose an in-
supportable financial burden on their re-
spective state governments. The rate of
return on capital in Andhra Pradesh will
become increasingly negative, reaching –
18 percent by 2015; in Bihar it will aver-
age –14 percent from 1996 through 2015.
The financial resources needed to main-
tain and operate the power plants at the
level needed to meet the projected de-
mand are unlikely to be forthcoming.
Under current policies, emissions of
environmentally damaging combustion
products may be expected to increase
rapidly, doubling in Bihar and quadru-
pling inAndhra Pradesh by the year 2015.
Extrapolating the results to India as a
whole reveals serious conditions (box 1
and figure 1).
Emissions on the scale described
above are bound to affect air quality and
have major human health impacts. The
damages caused by particulate matter to
the respiratory system are a particular
cause for concern. Consequences include
significant increases in mortality, hospital
admissionsforrespiratoryinfections,emer-
gency room visits for bronchitis and other
chronic pulmonary diseases, the number
of days asthmatics experience shortness of
breath, and the number of days residents
experience restricted activity.
Although the power sector contributes
to the problem, most of the pollution, es-
pecially in the urban areas, stems from
other sources, notably residential and
commercial stoves, industrial boilers, in-
efficiencies in the transport sector and the
liquid fuel chain, the extensive use of tra-
ditional fuels in city slums, and emissions
from nonenergy sources. Urban air pol-
lution is, therefore, a cross-sectoral issue
that requires a citywide approach to
achieve comprehensive air quality man-
agement. Thus, a strategy to address ur-
ban air pollution must integrate a range
of activities at the municipal level, espe-
cially at small sources of energy and
A Time for Decisions 3
Source: ESMAP (Joint UNDP/World Bank Energy Sector Management Assistance Programme), India:
Enviromental Issues in the Power Sector, Report no. 205/98 (Washington, D.C.: Energy, Mining and Telecommu-
nications Department, the World Bank, 1998).
2,000
1,800
1,600
1,400
0
200
400
600
800
1,000
1,200
CO2
(million
tonnes)
SO2
(k tonnes)
NOX
(k tonnes)
Particulates
(k tonnes)
Ash
(million
tonnes)
Northern region
Southern region
Western region
East and northeast regions
Figure 1. “All India” Emissions by Region in 2015
power stations located in densely popu-
lated areas and in the transport sector. This
strategy should also include a major fo-
cus on the petroleum subsector.
Currently the power sector in India
is on the verge of fundamental and sig-
nificant reforms that have profound
implications for environmental manage-
ment. India is moving from a publicly
owned, vertically integrated, monopolis-
tic power system with highly distorted
prices for fuels and electricity to a more
liberal system with market prices, com-
petition, a greater role for the private sec-
tor, and commercial incentives. These
changes will affect every aspect of the en-
ergy production system: the demand for
electricity, the financial viability for all the
entities involved, the choice of fuel and
technologies, pricing decisions, and the
respective roles and relationships among
the state, the power sector, regulators, and
fuel suppliers. During this time of transi-
tion, it is critical to determine how best to
take advantage of the opportunities it pre-
sents to protect the environment and avert
threats to public health.
To find a more appropriate balance
between the need to support economic
development and environmental con-
cerns, stakeholders must begin immedi-
ately to take environmental impacts into
account as long-term plans for power gen-
eration are developed.
4 A Time for Decisions
Depending on the unique needs and
situation of the geographic area, differ-
ent strategies for reducing negative en-
vironmental consequences from power
generation may be more or less effective.
Decisionmakers can choose from a range
of measures, using modeling tools to de-
termine which combination of options
will have the greatest positive impact.
For example, the environmental impacts
of power development may be reduced
by using less electricity, preventing waste
products from reaching the environment,
adopting cleaner technologies for coal
production, or using alternative forms of
energy production that cause less environ-
mental damage. Sound pricing strategies
for electricity and fuel, changes in the
structure of the power sector, and ways
of looking at the cost of energy produc-
tion that take environmental impacts into
account would also help preserve envi-
ronmental quality.
While power system expansion plan-
ninghaspreviouslybeenconductedatthe
national level using state-provided data
on regional needs, the decisionmaking
process in India is being decentralized.
Some state electricity boards are being un-
bundledintoseparategeneration,transmis-
sion, and distribution entities.
Corporatization and, to an increasing de-
gree, privatization are an integral part of
this process. The unbundled institutions
will assume the responsibility for the criti-
cal functions of planning and
decisionmaking. To meet the need for tools
and data to support state-level
decisionmakingduringthisimportanttran-
sition, the government of India, the World
Bank, and the U.K. Department for Inter-
nationalDevelopmenthavecollaboratedto
develop a decisionmaking framework.
They tested a participatory planning pro-
cess and analytical tools that can help
decisionmakers in India both to improve
the planning and management of their
power systems, taking into account the
majorenvironmentalimpacts,andtoassess
the economic and environmental tradeoffs
associated with different options for power
generation. This report summarizes what
has been learned through this process in
two very different states, Andhra Pradesh
and Bihar, and assesses the broader impli-
cations of these findings for energy plan-
ning in other states in India.
The case studies were supported by a
set of special studies dealing with interfuel
substitution;thewelfareeffectsofincreases
in electricity tariffs; the technical and eco-
nomic potential for renewable energy tech-
nologies; demand-side management; the
possibilities of adopting market-based in-
struments in India; the options available
to mitigate the environmental impacts of
coal-fired power stations and coal mining;
and the management, disposal, and utili-
zation of ash from thermal power plants.
The special studies provided basic generic
data to supplement the detailed state-spe-
cific information collected under the case
studies.
5
2
Options for Reducing Environmental Impacts
This section is based on a review of avail-
able data, including special studies and
lessons learned from other countries. A
particularly important source of data is
provided by case study material relating
to two contrasting Indian states, Andhra
Pradesh and Bihar. While no two states
can adequately represent the richness
and complexity of the Indian subconti-
nent, these two states and their distinc-
tive situations offered researchers an
opportunity to explore a range of issues
and options. Bihar is relatively poor, and
its state electricity board is in a precari-
ous situation, financially and technically.
Heavy industry accounts for about 40
percent of the demand for power in Bihar,
while agriculture accounts for a similar
percentage of the requirements of
Andhra Pradesh. Although both areas
have depended primarily on coal as a
power source, Andhra Pradesh has more
ready access to other supply options than
Bihar. The contrasts between them, ex-
plored through different scenarios using
computer models, have yielded insights
and examples that will be cited through-
out this section.
Options available to India as it seeks
to reduce the environmental impacts of
power generation include the following
strategies:
• Reforming and restructuring the
power sector
• Rehabilitating generating plants and
transmission and distribution net-
works
• Managing demand
• Using renewable energy supplies
• Internalizing the costs of pollution
• Reducing and recycling combustion
by-products
• Siting plants to reduce environmental
damage.
The following section explores the
relative merits of these strategies and the
obstacles to their use.
Reforming and Restructuring
the Power Sector
Though it is moving toward reform,
India’s current government policies
continue to maintain some fuel prices
at artificial levels, with inevitable and
harmful consequences to the environ-
ment. While most coal prices have been
deregulated, power station grades of do-
mestic coal are still priced below the cost
of production. The true value of the bet-
ter grades is underestimated. Cleaner im-
ported fuels are priced too high by
comparison with domestic coal. Prices
for the transport of goods by rail, includ-
ing coal, are generally subsidized, further
encouraging the use of the domestic
product and its high ash content. As a
result,
6 Options for Reducing Environmental Impacts
• Indian coal is preferred as a fuel for
power generation over other fuels
with lower ash content.
• The relative prices of different grades
of coal give no incentive to the coal
producer to increase output of the bet-
ter-quality coals.
• Distorted prices for transport affect the
choice between pit-head and load-cen-
ter plants, shifting the location of en-
vironmental impacts.
• Demand is maintained at artificially
high levels.
As government reform progresses and
prices for fuel rise to a level that reflects
their true “economic” cost, stakeholders
in the energy system will have reason to
make different choices:
• When the tariff structure is changed
to reflect the economic costs of produc-
tion, higher prices for electricity in the
residential and agricultural sectors
will dampen demand.
• As electricity producers are motivated
by commercial incentives rather than
dependence on government subsidies,
they will have adequate cash flow to
rehabilitate transmission and distribu-
tion systems and to modernize gener-
ating plants, reducing electricity loss
through inefficiency.
• Commercial incentives will encourage
power utilities to offer higher prices
for better coal and spur coal suppliers
to invest in coal beneficiation plants.
• Commercially motivated producers
will search for cost-effective ways to
encourage ash utilization and dis-
posal. They will improve metering,
monitoring, billing, and collection
procedures, which will increase the
amount of available cash.
• Power system reliability will increase;
consequently, many consumers who
now install their own power sources
will be able to rely on the grid system.
The fact that electricity once lost or
sold to agriculture at a subsidized price
can instead be sold to agriculture at higher
prices or to industry at a profit will con-
tribute strongly to improved financial per-
formance for energy providers. Clearly
the change in tariff policy makes the dif-
ference between a system doomed to fail-
ure and one that has the capacity to meet
future demand efficiently.
Improving the cash flow of utilities
has significant environmental impacts.
One major impact will be that providers
can build new plants, which will obvi-
ously increase the volume of environmen-
tal impacts. However, these plants will be
intrinsically cleaner and more efficient,
displacing old plants; available cash will
also enable producers to bring the plants
in line with standards. The latter effects
will tend to bring down specific emissions
of pollutants. The Bihar case study dem-
onstrates that reform would have an over-
all beneficial effect on pollution levels and
at the same time produce more electricity
(table 1). Results for the Andhra Pradesh
Case Study were comparable (ASCI
Consultancy 1998).
While reforms will have a beneficial
effect on the environment, what other
major effects could they have on public
welfare? Data are limited, but there could
be significant impacts on residential con-
sumers and on agriculture. First, costs
may go up for households with access to
Options for Reducing Environmental Impacts 7
electricity, but the quality of their supply
will improve.Also, with proper metering,
demand will adjust to efficient levels. As
reforms improve the cash flow of electric-
ity companies, they should be able to of-
fer power to new consumers.
Second, increased electricity prices to
agricultural customers could result in a
more efficient use of water. This, in turn,
could lead to improved yields, since
overwatering dilutes the effectiveness of
fertilizers. Metering could also have an
equalizing effect on access to energy. Cur-
rently, small farmers often experience long
waits for pump connections, while more
wealthy farmers are able to use diesel to
meet their energy needs. Recent studies
suggest that farmers are willing to pay
more for reliable access to energy (based
on unpublished findings from ongoing
studies of power supply to agriculture for
the World Bank).
Rehabilitating Generating
Plants and Transmission and
Distribution Networks
Losses of energy as a result of weak-
nesses in India’s transmission and dis-
tribution system were reported by public
sector utilities to be as high as 21 per-
cent. This figure is generally recognized
by experts familiar with the power sector
in India as a serious underestimate. Most
state-level studies cite a much higher per-
centage—perhaps even double the pub-
lic utility figure. The losses in India are
much greater than in EastAsian countries.
The best performers were Singapore (9.1
percent) and the Republic of Korea (10.2
percent).
Factors that contribute to the high rate
of loss in India include the following:
• Lack of investment in rehabilitation
of the transmission and distribution
system
• Weak transmission and distribution
lines
• Long transmission and distribution
lines
• Low power factor operation
• Too many transformation stages
• Pilferage and theft.
Modeling suggests that the percent-
age of power lost through transmission
and distribution could be reduced in
most states to as low as 10 percent by
2010. If energy providers are motivated
to make improvements through price re-
form, changes in maintenance, metering,
Table 1. Summary of Emissions under the Reform Scenario in Bihar, 2014/2015
Cumulative Total Ash
CO2
NOx
SOx
SPM (million
Scenario (million t) (kt, PV) (kt, PV) (kt, PV) t)
“Business as Usual” 142 804 929 62 36
Reform 127 685 828 54 34
Note: CO2
= carbon dioxide, kt = metric kilotons, PV = present value, SOx
= sulfur oxide, and t = metric tons.
Source: SCADA 1998.
8 Options for Reducing Environmental Impacts
monitoring, and billing and collection
would make more money available to re-
habilitate the system—clearly a win-win
prospect. System rehabilitation not only
would result in across-the-board reduc-
tions in environmentally damaging emis-
sions, but would yield high rates of
return both in financial terms and in eco-
nomic benefits to society.
Case studies found system improve-
ments to be cost-effective both in Andhra
Pradesh and in Bihar, which has a smaller
system that is in worse condition. Both are
currently experiencing energy losses of 30
percent or more. By rehabilitating the ex-
isting transmission and distribution sys-
tem, both could significantly reduce
operating costs and achieve measurable
environmental benefits for area residents.
In Andhra Pradesh, measured envi-
ronmental impacts—”attributes”—would
be reduced by 3 percent and operating
costs by 4 percent. In Bihar, attributes
would be reduced by 5 to 6 percent. Ex-
penditures on operations would fall by
more than 6 percent.
Managing Demand
Energy use is currently less efficient and
less cost-effective than the best avail-
able technology would allow. Conse-
quently, a more negative environmental
impact is occurring than is actually nec-
essary to meet load requirements. De-
mand-side management refers to the use
of policies to reduce energy consump-
tion, with a resulting decrease in energy
production and new plants. Modeling
studies show that demand-side manage-
ment programs could reduce total sys-
tem costs (in present value terms) and
power consumption by approximately 6
percent by 2015, resulting in an
Indiawide reduction of measurable en-
vironmental impacts (or attributes) of
about 10 percent. Specifically, sulfur di-
oxide (SO2
) and nitrogen oxide (NOx
)
would be reduced by 9 percent, total sus-
pended particulate matter (SPM) and car-
bon dioxide (CO2
) by 10 percent, and ash
by 11 percent.
Many diverse technologies are avail-
able to reduce energy consumption. Those
that are most likely to significantly reduce
demand will vary by region, depending
on the residential and commercial mix of
energy consumers and other factors. Table
2 contains some examples of energy sav-
ings that the Andhra Pradesh case study
shows would be achieved in the tenth year
of a demand-side management program
in that state (ASCI Consultancy 1998).
Other governments have tried differ-
ent policy strategies to encourage de-
mand-side management. Examples that
may also work well in India, although
they are not among the conclusions of this
work, include the following:
• Promoting energy service companies
to fund and manage investments in
energy efficiency and to share savings
with users
• Placing levies on utilities to fund en-
ergy conservation programs
• Requiring utilities to engage in de-
mand reduction activities as a condi-
tion of construction permits or tariff
increases.
Demand-side management programs
can be implemented or funded by utilities,
the state, the private sector, or other insti-
tutions. Once price reforms are in place,
however, utilities lose their financial
Options for Reducing Environmental Impacts 9
interest to reduce demand. Consequently,
the role of the private sector in promoting
changes in consumer behavior may in-
crease. For example, an independent en-
ergy service company could promote such
programs on a commercial basis, a strat-
egy that has been used in the United States
and in Western Europe (table 3).
Using Renewable Energy
Supplies
Over the next fifteen years renewable
energy supplies could increase by more
than seven times, and their share in the
country’s total power generation capac-
ity could nearly triple. At roughly 1,378
megawatts, renewable energy technolo-
gies currently account for about 1.5 per-
cent of total power generation capacity
(Ministry of Non-Conventional Energy
Sources 1999), of which wind power ac-
counts for about 72 percent (992 mega-
watts) and small hydro roughly 13
percent. Biomass and solar energy
sources account for the rest. The Minis-
try of Non-Conventional Energy Sources
has estimated that 126 gigawatts of
power generation capacity is available
from renewable energy sources in the
long term. Although the technical poten-
tial for the use of renewable energy
sources in India is vast, the prospects for
expansion may be limited in the short
Table 2. Estimated Tenth-Year Savings from Technologies in Andhra Pradesh
Savings in Year 10 Percentage
Technology (gigawatt-hours) in total savings
High-efficiency pumps 3,453 10.01
Fluorescent lamp standards 1,007 0.00
Industrial cogeneration 806 1.34
Metering pump sets 597 1.75
Commercial fluorescent lighting 493 1.32
More efficient rural lighting 475 1.53
More efficient urban lighting 206 0.14
High-efficiency refrigerators 167 0.29
Others 911 2.45
Total 8,115 16.38
Source: ASCI Consultancy 1998.
Table 3. Estimated Electricity Saved through Demand-Side Management
(percent)
Study 2001/2002 2006/2007 2011/2012 2014/2015
Andhra Pradesh 4.5 11.3 8.3 5.6
Bihar 2.1 7.0 8.1 9.8
CERI 7.4 7.7 8.2
CERI = Canadian Energy Research Institute and Tata Energy Research Institute.
Source: Canadian Energy Research Institute and Tata Energy Research Institute 1995.
10 Options for Reducing Environmental Impacts
and medium terms because of a number
of constraints (see box 3). Aspecial study
of renewable energy technologies (Envi-
ronmental Resources Management 1997)
has found that continuation of govern-
ment policy can give a boost to the pen-
etration of renewable energy
technologies to 11,440 megawatts,
roughly 4 percent of total generation ca-
pacity in 2011–12 (see table 4). Sensitiv-
ity analysis on capital costs show that
capacity addition of 8,560 megawatts
(nearly 3 percent to the country’s total
generation capacity) is feasible through
renewable energy technologies in 2011–
12 even in the absence of any incentive
and subsidy scheme (see box 2). The spe-
cial study, therefore, concludes that gov-
ernment incentives will need to continue
in the short and medium term to enable
renewable energy technologies to pro-
vide an increasing share of the nation’s
power supply. These incentives are out-
lined in box 2. The renewable energy
technologies could become more attrac-
tive economically if energy sector reform
Box 2. Incentives and Subsidies
A number of incentives are offered for renewable energy technology projects, which in-
clude soft loans, reduced customs duties on imported material and equipment, 100 per-
cent depreciation allowance, exemptions from excise and sales tax, remunerative price
with escalation clause for power fed into the grid, facilities for wheeling and banking
power, and large capital subsidies. For example, in Maharashtra, up to 30 percent capital
subsidy is being offered to private developers of wind power projects. For biomass, a
capital subsidy of up to 50 percent of the cost of projects (subject to a maximum of Rs. 2.5
crores per megawatt) is being offered. In the northeastern region, the recently announced
a government incentive package for the promotion of small hydro projects includes a
capital subsidy of up to Rs. 3 crores per megawatt or 50 percent of the project cost. Re-
garding SPV, the Ministry of Non-Conventional Energy Sources provides two thirds of
the project cost (subject to a maximum of Rs. 2 crores per 100 kW) for the procurement of
SPV modules, structures, cables, power conditioning units and grid interfacing equip-
ment, while the balance is required to be met by implementing agencies. The solar ther-
mal power plant in Rajasthan would be supported by grants from the central government
of up to Rs. 50 crores and from the Global Environment Facility of $49 million, including
a technical assistance component of $4 million.
Table 4. Potential Contribution of Renewable Energy Technologies
(gigawatts)
Installed capacity in gigawatts (electrical) 2001/2002 2006/2007 2011/2012
With government financial incentives 4.5 (3.4%) 7.1 (3.5%) 11.0 (3.8%)
Without government financial incentives 3.1 (2.3%) 4.9 (2.4%) 6.7 (2.3%)
Note: Percentages of the totals for India are in parentheses.
Source: Environmental Resources Management 1997.
Options for Reducing Environmental Impacts 11
Box 3. Constraints
Although the cost of generation of small hydro at about Rs. 1.43 per kilowatt-hour is highly
competitive with conventional technologies, some renewable energy technologies, such as
solar photo voltaic (SPV) and solar thermal, are far less economically attractive than conven-
tional technologies. For example, despite the rapid declines in SPV costs, the current esti-
mated cost of SPV modules are around $4 to $5 Wp (peak watt). Even if the cost declines by 50
percent to approximately $2.5 per Wp, the technology would remain uncompetitive com-
pared with $1.05 to $1.35 Wp (Rs. 3.5–4.5 crores per megawatt) for other renewables and con-
ventionaltechnologies,notwithstandingthelowvariablecostsassociatedwithSPVtechnology.
Several other factors constrain the use of renewable energy technologies. They are classi-
fied as technological, institutional, financial and economic, and infrastructural, as follows:
Technological
• Most renewable energy technologies have not achieved maturity within the country,
and a large portion are imported.
• Renewable energy sources are site-specific, and the supply may not be continuous.
• Technical information is not easily available either for the entrepreneur or the consumer.
Institutional
• A top-down centralized government approach is generally adopted for this poten-
tially highly decentralized option.
• Little encouragement has been received from the state electricity boards.
• There is a lack of awareness about the potential environmental benefits.
• There is a lack of serious education and training for operation and upkeep.
• Incentivesaremisused;theyarerelatedtoinvestmentratherthantoperformanceofplants.
Financial and economic
• Diesel and electricity are subsidized for use by agriculture and residential consumers.
• Funds allocated to renewable energy sector are minimal when compared with fossil
fuel and nuclear energy options.
• In some cases, large initial investments are required.
Infrastructural
• The land requirement for renewable energies could be very high.
• Poor grid availability proves to be a major deterrent.
• There is a lack of proper maintenance and servicing facilities at the local level.
A number of options to address the constraints exist, some of which are already at
various stages of implementation: the collection of information; dissemination and train-
ing campaigns; the reorienting of the investment portfolios of power utilities to develop
decentralized power options and encouragement for the utilities to ensure grid connec-
tion to private developers; formulation of a policy for power purchase; promotion of the
financing of economically viable renewable energy technologies by developing and intro-
ducing innovative financing schemes, such as lines of credit, revolving funds, and hire-
purchase plans, to the conventional loan schemes; and formulation of government policy
and legal and regulatory frameworks that encourage private sector participation.
12 Options for Reducing Environmental Impacts
becomes more widespread and the sub-
sidies associated with conventional en-
ergy are reduced. Agriculture and
residential consumers of power are
heavily subsidized by the state govern-
ments. Net subsidies to power consum-
ers—revenue requirements less the
contributions state electricity boards re-
quire from state governments—
amounted to roughly $3.7 billion in
1995–96, about 1.4 percent of gross do-
mestic product.
Water, wind, and biomass are the most
economically feasible renewable sources
of energy for the near term in India. Solar
energy, however, has enormous potential
if it can be made more economically vi-
able. Even in the near term, it may be an
economically competitive option for
many remote areas where the cost of grid
connection is very high.
• The high rate of photosynthesis from
available biomass in India, such as
crop residues, makes this a prospec-
tive resource. Bagasse-based cogen-
eration uses a combination of direct
combustion and gasification of biom-
ass to generate energy. At the time of
this report, eighteen biomass projects
have been installed and another sev-
enteen are under construction. There
are technical challenges, however, in
using this resource effectively, as well
as logistical ones in ensuring an ad-
equate and timely supply of fuel on a
year-round basis. The estimated po-
tential for bagasse conversion in India
is approximately 3,500 megawatts.
• The first wind farms in India were in-
stalled in the coastal areas of Tamil
Nadu, Gujarat, Maharashtra, and
Orissa. The main potential is for use in
these and other states within South In-
dia. Ninety-eight sites have been iden-
tified with annual mean wind speeds
of more than 18 kilometers per hour.
Together they would provide 5,000
megawatts of energy. Constraints in-
clude operational problems in match-
ing supply and demand, since wind
power often varies seasonally.
• The potential for small hydro power
in India is also strong, with an esti-
mated potential to contribute 10,000
megawatts. The Ministry of Non-Con-
ventional Energy Resources, which
has examined 2,679 sites that have
potential capacities of up to 3 mega-
watts each, estimates that small hydro
power could represent 1 percent of the
likely installed Indiawide capacity for
power generation by the year 2015.
• The technical potential of solar energy
in India is huge. The country receives
Options for Reducing Environmental Impacts 13
enough solar energy to generate more
than 500,000 terawatt-hours of elec-
tricity, assuming 10 percent conver-
sion efficiency. This is three orders of
magnitude greater than the likely demand
for electricity in all of India by 2015.
However, even though the cost of
photo voltaic cells is falling and unit
costs of production are expected to
decline, the cost of solar energy is still
higher than that of other renewable
energies.As further technical progress
is made, it will probably become a sig-
nificant long-term energy source.
Even in the near term, it may be an
economically competitive option for
many remote rural areas.
Internalizing the Costs of
Pollution
The government is responsible for setting
the rules for how the costs of environmen-
tal pollution are apportioned between so-
ciety and the polluting agency. The
principle of “the polluter pays,” which has
generally been adopted in environmental
regulation, obliges the polluting agency
to bear the cost of reducing or maintain-
ing its environmental waste at an ac-
ceptable level. This is called
“internalizing” the costs. If the rules of
environmental management set by the
government were both adequate and en-
forced, all costs would be internalized
within the agency. The agency would be
motivated, by whatever means chosen by
the policymakers, to fully bear these costs,
and would therefore make the changes
needed to reduce its emissions. This can
be accomplished by using technical stan-
dards that require the polluter to reduce
its emissions to target levels or face sig-
nificant consequences (the “command
and control” strategy), and market-based
instruments that seek to change the na-
ture of the incentives and disincentives
faced by polluters to perform acts that
benefit society.
Guidelines and standards are in-
tended to be a means of forcing a busi-
ness to change its operations in order to
reach prescribed levels, increasing the
cost to the business. In principle, the ad-
verse environmental impacts of decisions
in the power sector could be reduced by
implementing more stringent standards
than those currently applied in India. For
this reason, the study attempted to esti-
mate the incremental costs of implement-
ing the World Bank’s new standards for
air quality and emissions, which are more
stringent for SO2
and SPM than current
Indian standards.Analysts concluded that
the incremental costs associated with
meeting World Bank standards need not
be substantial if plants are properly sited.
More significant benefits, however,
will result from improved implementa-
tion of existing standards than from
adoption of new and stricter standards
(table 5). Participants in the National
Decisionmakers Workshop held as part
of this study stressed that better imple-
mentation of monitoring and enforce-
ment procedures will be of more
immediate benefit to India.
Market-based instruments attempt
to meet environmental objectives by
working through market mechanisms.
The common element of all market-based
instruments is that they work through
the market, attempting to alter the behav-
ior of economic decisionmakers, such as
firms and households, by changing the
14 Options for Reducing Environmental Impacts
incentives and disincentives they face.
For example, if ash disposal permits were
allocated equally to all new power plants,
regardless of their circumstances, some
permits might be sold by those that find
it easiest to meet the targets, which
would reduce the total cost of compliance
for all power plants. Other examples of
market-based instruments include pollu-
tion or input taxes, product charges, and
differential tax rates. Market-based in-
struments are most easily applied in situ-
ations where there are few “actors” and
where impacts can be measured easily.
They also work best when polluters must
face hard budget constraints.
A number of studies have demon-
strated the cost-effectiveness of market-
based instruments over traditional
“command and control” regulatory strat-
egies that require all polluters to meet the
same discharge standards. Market-based
instruments acknowledge and use the key
fact that the costs of reducing pollution
are not the same across all firms. Simula-
tions done in the United States show that
these instruments can be between 1.5 and
4 times as cheap as a “command and con-
trol” regime across a range of pollutants
and locations. Realizing these potential
savings, however, will require careful de-
sign and implementation.
Several significant barriers exist to
successful use of market-based instru-
ments in India:
• Misconceptions among stakeholders
about market-based instruments
• A vested interest in the status quo on
the part of both regulatory agencies
and firms
• A lack of good governance, including
an ineffective institutional framework,
a lack of local-level capability, and in-
sufficient technical understanding of
issues at the state board level
• The challenge of changing the current
legal system
• The “soft” budgets of the state-owned
enterprises that dominate the power
sector
• The potential for malpractice in the use
of funds raised through market-based
instruments
• The potential for higher costs to the
industry in some instances.
Before market-based instruments can
do their work, a suitable legislative and
regulatory framework for administering
them must be established. Further, it is
essential to recognize that unless power
plants and companies have strong com-
mercial incentives to make the desired
Table 5. Existing Air Quality Standards for the Ministry of Environment and Forestry
Air quality
standard Residential and rural areas Industrial and mixed areas
(mg/m3
) SO2
NOx
SPM SO2
NOx
SPM
24-hour average 80 80 200 120 120 500
Annual average 60 60 140 80 80 360
Options for Reducing Environmental Impacts 15
choices, market-based instruments will
not produce the desired effects.
Reducing and Recycling
Combustion By-Products
Two specific clean coal technologies were
considered in the case studies conducted
in this project: Pressurized Fluidized Bed
Combustion in Bihar and Integrated-Gas-
ification Combined Cycle in Andhra
Pradesh. The two technologies, consid-
ered the most feasible in current circum-
stance, do improve combustion efficiency
and reduce emissions to the environment.
Case study data suggest that the use of
these technologies would result in only
marginal reductions in ash and CO2
, but
that they would have more substantial
impacts on total SPM and SO2
, reducing
them by as much as 17 percent in Bihar.
Their use would also reduce NOx
emis-
sions by 8 to 10 percent. Both require
higher capital and operating costs, how-
ever, which exceed those of power plants
that do not use these technologies by 10
to 15 percent. Consequently, neither tech-
nology would be implemented on the ba-
sis of normal market incentives.
In 1996/97 alone, coal production gen-
erated 62 million metric tons of ash. The
high ash content of Indian coal makes
ash disposal one of the most pressing
environmental problems India faces as
a result of its reliance on coal-powered
energy. The steady increase in open-cast
mining, which now supplies the bulk of
Indian coal, has been a major factor in the
falling calorific value and rising ash con-
tent of Indian coal. Storage of fly ash de-
mands large land areas; once land is used
for this purpose, it is expensive to reclaim
the land so that it can be used in other
ways.1
Often, this financial investment in
land recovery is not made and the land is
simply lost.
The Andhra Pradesh and Bihar case
studies clearly highlight the environmen-
tal hazards associated with current prac-
tice. In Andhra Pradesh, only 5 percent of
the ash stock piled outside thermal plants
is used by industries. The rest is dumped
in ash ponds or left in a pile outside the
plants. In Barauni (Bihar), ash ponds are
located on permeable sand, allowing
groundwater contamination. Ash has
spilled to local agricultural lands. Rivers
in Patratu are said to be full of ash; dur-
ing dry seasons, there are significant emis-
sions of fugitive dust.
Not only does the ash cause environ-
mental damage, but it also increases the
1. During combustion in power plants, the pulverized coal particles are injected into the
furnace and ignited in suspension. The mineral matter in coal is transformed, leading to the
formation of ash. The ash residues of combustion possess a wide range of both physical and
chemical properties that depend on the coal utilized, the combustion regime under which they
are generated, and the method of collection. The ash that enters the flue gas stream is called fly
ash, and the ash that falls through to the furnace bottom is called bottom ash. Fly ash generally
constitutes about 80 percent of the total ash produced. Coal ash is a complex material in terms
of specific gravity, size, morphology, microstructure, and mineralogy. The ash matrix consists
of a mixture of aluminosilicates, silicates, iron oxides, and a certain amount of alkali-silicates
in both amorphous and crystalline form. The mineralogical constituents of coal ash are SiO2
,
Al2
O3
, Fe2
O3
, and CaO.
16 Options for Reducing Environmental Impacts
cost of transport to the power station site
and causes wear and tear on equipment.
Plants that burn the high ash coal are in-
trinsically more expensive and less effi-
cient because they must handle large
quantities of noncombustible and abrasive
matter.
To date, limited use has been made
of coal washing, a process that removes
some of the mineral matter that would
result in ash prior to burning. Because
of the properties of Indian coal (it is diffi-
cult to separate mineral matter from car-
bon without also losing carbon), the
economic tradeoffs for coal washing
make it a controversial option. Conse-
quently, situational analysis is needed to
determine when transport is economi-
cally feasible. The Andhra Pradesh Case
Study concluded that washing coal with
marginally high ash content (30–38 per-
cent) or with calorific values greater than
4,000 kilocalories per kilogram may not
be advantageous. However, as long as the
total cost remains competitive with that
of imported coal, coal washing is a viable
alternative for coal with high ash content
and low calorific value that must be trans-
ported over distances of more than 1,000
kilometers. Cost recovery incentives are
essential, however, to make this option at-
tractive (ASCI Consultancy 1998).
The major economic benefit resulting
from the use of the washed coal is the
lower capital cost experienced by plants
specifically designed to burn this coal.
However, the waste carbon must be dis-
posed of, contributing to environmental
damage. Much of the large volume of
solid waste products is in the form of fine
carbon particles suspended in water. Ash
from improperly designed ash ponds can
enter the aquatic ecosystem, contaminat-
ing groundwater, as well as reservoirs,
streams, and rivers. While well-designed
and well-managed ash disposal systems
would result in minimal pollution, most
ash ponds in use at India’s power plants
are not properly designed or operated and
do not comply with Central Pollution
Control Board standards.
Some of this lost coal can be burned
in a fluidized bed process or used as
backfill in mines. An alternative ap-
proach to the fly ash problem is to en-
courage its use in a wide variety of
commercial applications. To date, how-
ever, India has been less successful
than other countries in encouraging
commercial use of this waste material.
Options for Reducing Environmental Impacts 17
In 1996/97, only 2 percent of the 62 mil-
lion metric tons of ash produced by
burning coal in India was used commer-
cially. By comparison, China produced
55 million metric tons of ash and re-
cycled 25 percent of it. This poor record
is not for any lack of possible applica-
tions relevant to the country’s needs. The
greatest emphasis has been placed on its
use in construction materials, since In-
dia has a chronic shortage of housing,
and building materials are always
needed. It is necessary to add binding
reagents to ash and clay, however, to
meet applicable standards. As a result,
the production of bricks from fly ash
appears to be economical only when pro-
duction exceeds 25,000 bricks per day
and when the bricks are used within 50
kilometers of the production site.
Avariety of other applications are also
promising. For example, it may be used as
filler, as a soil conditioner, or as a replace-
ment for cement. Some buildings in India
have already been built with concrete that
contains ash. A report prepared for the
World Bank sees the greatest potential for
environmental benefits in “low value-
added” uses of fly ash (uses that do not
require significant processing) (Water and
Earth Science Associates 1996). Examples
include uses in industrial effluent treat-
ment,roadmaking,embankmentconstruc-
tion, and plantation raising (box 4).
There are, however, obstacles to the
use of these productive variations that
planners must take into account. These
include quality variations in the coal,
transportation costs, technological limita-
tions, impaired quality as a result of wet
methods of coal collection and disposal,
and consumer resistance to products that
contain coal ash. Potential users must also
consider the following:
Box 4. Applications for Coal Ash
Agriculture: As an absorbent, artificial aggregate, fertilizer, and soil conditioner.
Building materials: For aggregate, bricks, building blocks, ceramic products, paving ma-
terials, roofing tiles, wallboards, and paneling.
Cement and concrete: In cement, cement extender, cement substitute, concrete, concrete
filler, foamed concrete, and mortar.
Civil engineering: Aggregate, asphalt filler, backfill, embankment materials, foundations
and road construction, grout, and hydraulic barriers.
Industrial materials: Abrasives, absorbents, artificial sand and aggregate, ceramic mate-
rials, decorative materials, filter media, gas cleaning, and industrial fillers.
Materials recovery: Recovery of alumina, iron and silicon, and trace elements.
Waste treatment: Grout and waste stabilization.
Source: Water and Earth Science Associates 1996.
18 Options for Reducing Environmental Impacts
• The price that industry must pay to the
generators for the ash (if any), plus the
cost of transport
• The cost of alternative materials
• The impact of using coal ash on the
quality of the end product
• The impact that using coal ash has on
the cost of the production process.
The National Thermal Power Corpo-
ration, which runs thirteen coal-fired
power plants in India, has been success-
ful in increasing the utilization of fly ash
by developing policies to encourage en-
trepreneurs to make use of the waste. In
1991 it established an Ash Utilization Di-
vision at the corporate level, with Ash
Utilization Cells at each power plant. Its
six-year program to promote the internal
use of ash in construction and to facilitate
the use of ash by private companies suc-
ceeded in increasing ash utilization in its
plants from 2 to 3 percent in 1991 to 10
percent in 1996/97. The corporation’s in-
centives for entrepreneurial use included
such policies as the following:
• Dry fly ash is provided free of cost to
users in and around the power station
for an initial period of five years.
• Surplus land is made available for a
discounted rent to companies that use
ash.
• The corporation invests equity in joint
venture companies for ash utilization.
The National Thermal Power
Corporation’s experience suggests that
the use of fly ash can be encouraged by
changesinplantpolicy.Mostplants,how-
ever, do not appear motivated to pursue
these policies. While in theory power
plants are required to meet standards for
ashdisposal,inpracticethesestandardsare
oftennotmet.Thepoorcomplianceimplies
that the actual cost of ash disposal in In-
dian power plants is much lower than the
costs in well-designed and well-managed
systems. Many state electricity boards are
apparently more likely to save money
through poor ash pond management than
by encouraging industry to use ash. Con-
sequently, the economic potential for the
use of ash in India is far from realized. The
previously cited “Review of Coal Ash Uti-
lization” (Water and Earth Science Associ-
ates 1996) suggests that the current
problems of ash disposal and manage-
ment could in part be corrected through
stronger enforcement of present environ-
mental standards.
Currently the government of India
provides some fiscal incentives to en-
courage the use of ash. Bricks and other
building materials using 25 percent or
more fly ash as raw material are exempt
from excise duty. Also, import machinery
needed to produce building materials
from ash is exempt from customs duty if
it is not available within the country. The
government has also taken several admin-
istrative actions:
• It has asked state governments to pre-
pare action plans for using 50 percent
of fly ash by the year 2000.
• It has asked State Pollution Control
Boards to be lenient with industries
that use industrial wastes.
• It has required environmental clear-
ances of thermal power plants, which
emphasizes the need to arrange for
dry ash collection and use.
Two additional policy options could
be used to increase the use of fly ash:
Options for Reducing Environmental Impacts 19
• Binding utilization levels. Binding
targets imposed by the central govern-
ment could be effective, provided that
the targets are well designed and geo-
graphically differentiated to reflect the
economic potential for the use of ash
in different areas.
• Ataxonashdisposal.Suchataxwould
have to be combined with power sec-
tor reform and commercial and regu-
latory incentives to have a significant
effect. If environmental standards are
enforced more strictly, however, an ash
disposal tax will be unnecessary.
Siting Plants to Reduce
Environmental Damage
Since the construction of many new coal-
fired plants will be needed to meet forecast
demand, it is important to consider the en-
vironmental impacts attributable to plant
location.Itisinstructivetoconsidertherela-
tive disadvantages and advantages of two
types of power plant sites: at a load center
(that is, in an area where a high population
of power users is concentrated), and at the
pit-head (in a sparsely populated area).
In many cities, other significant
sources of pollution will already be
present, such as vehicle emissions, resi-
dential coal burning, small generators
used in power shortages, and pollution
from nonenergy sources. It is important
to measure the background levels of pol-
lutants to determine whether a plant can
be added without exceeding target levels.
One reason for siting plants in load areas,
despite the high levels of pollution that
may already exist, is to reduce the costs
of transmitting and distributing energy.
Currently, India’s system is inefficient in
many areas. For example, in Bihar, trans-
mission lines could lose as much as 9 per-
cent of the energy transmitted from a new
power plant, compared with less than 1
percent loss in the best international prac-
tice. If not corrected, this loss will require
the production of more electricity, which
will further increase pollution.
Though siting new plants at load cen-
ters does reduce the amount of energy lost
in transmission, the coal itself must be
transported farther to reach the load cen-
ter (predominantly by rail). The environ-
mental impact of this transport is
comparatively slight, however. Similarly,
though sources of pollution also exist at
the pit-head, the levels are much less sig-
nificant. In rural areas, existing back-
ground pollution includes SPM. At the
20 Options for Reducing Environmental Impacts
coal mine itself, SPM will arise from the
mine itself and as a result of vehicles trans-
porting material from the mine. These
background SPM levels could be reduced
to acceptable limits through the use of
high-efficiency electrostatic precipitators.
When new plants are sited, the char-
acteristics of the terrain must also be con-
sidered. Air dispersion modeling in the
Bihar case study led to the conclusion that
concentrations of SPM, NOx
, and SO2
tend
to be higher on hilltops than flat terrain,
though any area will have specific geo-
graphic characteristics that increase or de-
crease its ability to disperse pollutants.
Planners will need to model the type and
quantity of pollutants released in relation
to areas where people are living in the
greatest numbers.
Using Options in
Combination
When these options are used together,
significant environmental benefits can
be achieved even though the individual
impact of each option may be modest.
In Andhra Pradesh, a combination of
options consisting of greater use of renew-
able energy sources, demand-side man-
agement, coal washing and clean coal
technologies, and rehabilitation of the
transmission and distribution system
could reduce coal-based power genera-
tion by 18 percent by 2015. Total system
costs (in present value terms) would fall
by about 4.5 percent, with significant en-
vironmental benefits: SO2
and NOx
levels
would fall by 27 percent and 21 percent,
respectively, while the decline in total
SPM, CO2
, and ash would be on the order
of 16–18 percent (tables 6 and 7).
In Bihar, a mixture of demand-side
management, greater use of renewable
energy sources, and rehabilitation of the
transmission and distribution system
would reduce coal-based power genera-
tion by 15 percent by 2015. Total system
costs would fall by about 7.5 percent, with
striking environmental impacts. SO2
lev-
els would decline by 7 percent, NOx
by 4
percent, total SPM by 8 percent, and CO2
by 10 percent.
Participants in the National
Decisionmakers Workshop and the Na-
tional NGO Workshop stressed that op-
tions will not be used or sustainable
without some measure of reform. Four
critical strands must be woven together
to achieve success:
• Getting the price of electricity right
so as to send the correct signals to
consumers to encourage them to in-
vest in energy-saving practices and
technology
• Getting the price of fuels right to “cre-
ate a more level playing field” for natu-
ral gas and renewable energy sources
• Increasing the commercial motiva-
tion of utilities to give them the in-
centives to make choices that benefit
the environment, such as improving
ash management and rehabilitating
transmission and distribution systems
• Increasing the funds available to
utilities to make improvements by
raising tariffs.
Introduced as an integrated package
within the framework of sector reform,
case studies and other evidence suggest
that an appropriate combination of op-
tions can succeed together in significantly
reducing environmental damage from
power generation, with its associated
negative impacts on the quality of life and
health of residents.
Options for Reducing Environmental Impacts 21
Table 6. Andhra Pradesh—Cumulative Pattern of Generation Mix
(over the study period 1997–2015)
Scenario CoalHydrocarbons HydroOther Renewables
Gigawatt- Gigawatt- Gigawatt- Gigawatt-
hour % hour % hour % hour %
IFS 965,474.0 70.0 232,923.0 16.9 181,182.0 13.1 — —
Combinations 786,548.0 63.5 246,261.0 19.9 181,183.0 14.6 24,352.0 2.0
Memo: reduction
in coal-based
generation 178,926.0 18.5
— Not available.
Notes: 1. IFS refers to interfuel substitution. The scenario assumes that current tariff policies and demand
trends will continue and that traditional supply side planning and choices between fuels will be made on the
basis of economic cost. 2. Combinations: The scenario examines the combined effort of demand and supply
side measures. On the demand side, the scenario considers demand-side management (DSM) and transmis-
sion and distribution (T&D) loss reduction (T&D losses assumed to decline from 20 percent under the refer-
ence case to 10 percent), the impact of which is manifested in reductions in generation equivalents. The
supply-side measures consider such options as clean coal, new technologies (pressurized fluidized-bed com-
bustion in Andhra Pradesh), and a reasonable amount of renewables introduced.
Table 7. Andhra Pradesh—Impact on Cost and the Environment
Emissions
CO2
SOx
NOx
Total SPM Ash
Total cost (million (metric (metric (million (million Land
Scenario (Rs. billions) metric tons) kilotons) kilotons) metric tons) metric tons) (ha)
IFS 742.2 1,235 2,552 2,576 252 251 2,008
Combination 708.4 1,011 1,851 2,027 212 207 1,656
Memo: %
reductions in
present value
of cost and
environmental
impact 4.6 18.1 27.5 21.3 15.9 17.5 17.5
Notes: 1. The present value (PV) of Total Cost = PV of (Investment in committed and new plans + Variable Costs + Invest-
ments in T&D – Salvage Value). 2. Variable costs include fuel, variable operations and maintenance, and fixed operations
and maintenance costs. 3. The land required for ash disposal is 8 hectares per million metric tons of ash. 4. The discount rate
is 12 percent for local pollutants, such as SOx
, NOx
, and total SPM. 5. No discounts are given for CO2
emissions, ash, and land.
6. The PV of DSM is estimated from the IRP report (Meier 1996). Associated T&D costs are adjusted downward to reflect
reduced investments corresponding to lower demand. 7. The PV of T&D rehabilitation cost is estimated independently at
one third the generation cost.
23
Applying the Decisionmaking
Process and “Toolkit”
The study yielded two key products that
are immediately applicable in other situ-
ations in which power system planners
use data to guide their decisions and
minimize the serious impact of power
production on the environment. The first
is a tested decisionmaking process to
help planners develop sound plans for
power development.
The second key product is a “toolkit”
consisting of a series of planning “mod-
ules” that can be used flexibly and that
provide a variety of choices to users in
different states with a wide range of con-
cerns. Although the software programs
used in the project performed well, alter-
native software programs, which experts
believe would work equally well, are also
available. To help states choose the best
planning tools for their situation, the lo-
cal and international consultants who
worked on the activity produced a prac-
tical description of the toolkit in the
Manual for Environmental Decisionmaking,
recently published by the Energy Sector
Management Assistance Programme
(ESMAP Report 213/99, June 1999).
In disseminating the process and as-
sociated tools, planners and consultants
will benefit by applying the lessons
learned from the experience gained in
this study:
• Workshops are an important part of the
consultative process. They can be used
effectively to raise planners’ awareness
of the environmental impact of power
generation, achieve consensus among
participants on project activities, and
show planners how to identify the best
strategies to mitigate negative impacts
in their planning areas.
• Workshops are effective vehicles for
publicizing findings. They provide
opportunities to make relevant agen-
cies in target states aware of the
decisionmaking process and the ana-
lytical tools available to accompany it;
to encourage them to adopt similar
approaches to achieve their corporate
planning, environmental, and regula-
tory objectives; and to help them de-
sign a program to enable them to use
the process and tools successfully.
• Sound corporate planning in power
system expansion is essential to man-
age adverse environmental impacts
effectively.
• The planning process will work best if
reforming states are targeted. Without
progress toward power sector reform,
the developmental impact of the pro-
cess will be significantly hampered.
People involved in the planning pro-
cess may include representatives from
state agencies, state electricity boards,
unbundled transmission and generation
3
From Knowledge to Action
24 From Knowledge to Action
companies, independent power produc-
ers, academic institutions, nongovern-
mental organizations (NGOs), and central
power agencies, as well as consultants
(box 5). Their work is best structured
around a set of questions that may be an-
swered through the appropriate applica-
tion of modeling tools. For example, to
explore the environmental impact of re-
form, questions could include what the
consequences would be of choosing plants
on the basis of economic costs and allow-
ing environmental costs to be internal-
ized? Or, to explore the feasibility of
technical options, questions could include
how much it would cost to use new clean
coal technologies to wash coal, what the
potential would be for renewable energy
supplies, and what level of environmen-
tal benefits could be achieved by using
these methods?
Once the questions are clear, it is es-
sential to determine basic parameters,
such as the study boundary (which con-
sumers and power plants will be studied),
the study period, and assumptions to be
used for modeling. Scenarios can then be
developed to determine what results
would occur in specific sets of circum-
stances of interest to planners—for ex-
ample, given stated economic policies,
energy sector policies, policy instruments,
and power sector options.
Having defined the questions to be
answered, the project parameters, and the
scenarios to be explored, specific tools can
be applied to carry out the necessary stud-
ies. Special studies can also be carried out
as needed to research issues outside the
scope of the existing “toolkit.”
The toolkit consists of a series of linked
modules (box 6). Computer modeling en-
ables planners to determine what would
occur under each of the identified sce-
narios. Key modules tested in this study
may be used to generate “outputs” in the
general areas of demand forecasting,
power system planning, environmental
analysis, and financial analysis.
As results are reached, those partici-
pating in the planning process should not
only be informed of these results, but also
be actively assisted in understanding
their importance for decisionmaking and
in using them appropriately in the plan-
ning area.
From Knowledge to Action 25
Box 5. Elements of the Participatory Planning Process
• Disseminate a questionnaire to senior officials in the energy and environment sector,
as well as to nongovernmental organizations, and to private investors to obtain their
views on issues and priorities.
• Establish an advisory group to guide the report development process.
• Conduct technical workshops for specialists to reach consensus on methodology for
projections and modeling.
• Conduct seminars for nongovernmental organizations and decisionmakers to exchange
information and encourage involvement and interest in the planning process.
• Disseminate results on an ongoing basis to state contacts, nongovernmental organiza-
tions, and other key officials through designated coordinators and periodic seminars.
• Hold workshops for decisionmakers and nongovernmental organizations to dissemi-
nate findings, elicit feedback on results, and determine next steps.
Box 6. A “Toolkit” for State-Level Energy Planning
Tools tested in this project that are available to help other states in India to integrate envi-
ronmental concerns in power planning and to assess the impact of future energy produc-
tion strategies on the environment include four modeling activities:
• Demand forecasting: To examine historic demand and project future demand, taking
into account the impact of such variables as growth in income, price reform, demand-
side management, and rehabilitation of transmission and distribution networks.
• Power system planning: To calculate the schedule of investments in power plants that
will meet the forecast demand at the least cost.AS-PLAN software was used to project
system production costs and emissions of SO2
, NOx
, SPM, ash, and coal requirements,
taking into consideration such parameters as reserve margins, reliability constraints,
and loss of load probability.
• Environmental analysis: To indicate the impact of emissions from power plants on
local air quality. An air dispersion model was used to estimate concentration of SO2
,
NOx
, and SPM in the air.
• Financial analysis: To calculate the financial impact of alternative power develop-
ment options.Asimple spreadsheet model was constructed fromAS-PLAN and other
sources showing such key data as capital and operating costs, revenues, and debt
service requirements.
27
References
ASCI Consultancy. 1998. “Environmental Issues in the Power Sector:Andhra Pradesh
Case Study.” ASCI Consultancy, Centre for Infrastructure Management, Admin-
istrative Staff College of India, Hyderabad.
Canadian Energy Research Institute and Tata Energy Research Institute. 1995. “Plan-
ning for the Indian Power Sector: Environmental and Developmental Consider-
ations.” Canadian Energy Research Institute and Tata Energy Research Institute,
Ontario.
Environmental Resources Management. 1997. “Renewable Energy in India: A Spe-
cial Study.” Environmental Resources Management, London. March.
ESMAP (Energy Sector Management Assistance Programme). 1999. India: Environ-
mental Issues in the Power Sector. ESMAP report 213/99. Washington, D.C.
Meier, Peter. 1996. “Integrated Resource Plan for Andhra Pradesh.” U.S. Agency for
International Development (USAID), Office of Energy, Environment, and Tech-
nology, Washington, D.C., May.
Ministry of Non-Conventional Energy Sources. 1999. Annual Report, 1998–99. Min-
istry of Non-Conventional Energy Sources, Government of India, New Delhi.
SCADA(Sone Command Area Development Agency). 1998. “Environmental Issues
in the Power Sector: A Case Study of Bihar.” SCADA, Bihar, India.
Water and Earth Science Associates. 1996. “Review of Coal Ash Utilization.” Water
and Earth Science Associates, Ontario.
The World Bank
1818 H Street, N. W.
Washington, D.C. 20433, U.S.A.
Telephone: (202) 477-1234
Facsimile: (202) 477-6391
Telex: MCI 64145 WORLDBANK
MCI 248423 WORLDBANK
Internet: www.worldbank.org
E-mail: books@worldbank.org

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Meeting+india's+power+needs

  • 1. Meeting India’s Future Power Needs Planning for Environmentally Sustainable Development Meeting India’s Future Power Needs Planning for Environmentally Sustainable Development The World BankThe World Bank
  • 2. Meeting India’s Future Power Needs Planning for Environmentally Sustainable Development The World Bank Washington, D.C.
  • 3. Copyright © 1999 The International Bank for Reconstruction and Development/THE WORLD BANK 1818 H Street, N.W. Washington, D.C. 20433 USA All rights reserved Manufactured in the United States of America First Printing October 1999 This report has been prepared by the staff of the World Bank. The judgments expressed do not necessarily reflect the views of the Board of Executive Directors or of the governments they represent. The material in this publication is copyrighted. The World Bank encourages dissemination of its work and will normally give permission promptly. Permission to photocopy items for internal or personaluse, for the internal or personal use of specific clients, or for educational classroom use, is granted by the World Bank, provided that the appropriate fee is paid directly to Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, U.S.A., telephone 978–750–8400, fax 978–75-–4470. Please contact the Copyright Clearance Center before photocopying items. For permission to reprint individual articles or chapters, please fax your request with complete information to the Republication Department, Copyright Clearance Center, fax 978– 750–4470. All other queries on rights and licenses should be addressed to the World Bank at the address above or faxed to 202–522–2422. Cover photograph: NTCP power station at Ramagundam, courtesy of National Thermal Power Corporation, Ltd. ISBN 0-8213-4309-2 1. World Bank. 2. Rural development—Finance. 3. Rural development projects—Finance. 4. Infrastructure (Economics)—Finance. I. Title. II. Series: Environmentally and socially sustainable development series. Rural develop- ment. HG3881.5.W57P68 1998 362.1’532—dc21 96–32776 CIP
  • 4. iii Contents 1. A Time for Decisions ..............................................................................................1 2. Options for Reducing Environmental Impacts .......................................................5 Reforming and Restructuring the Power Sector .................................................................. 5 Rehabilitating Generating Plants and Transmission and Distribution Networks .................. 7 Managing Demand.............................................................................................................. 8 Using Renewable Energy Supplies ..................................................................................... 9 Internalizing the Costs of Pollution ................................................................................... 13 Reducing and Recycling Combustion By-Products .......................................................... 15 Siting Plants to Reduce Environmental Damage ............................................................... 19 Using Options in Combination ......................................................................................... 20 3. From Knowledge to Action..................................................................................23 Applying the Decisionmaking Process and “Toolkit” ........................................................ 23 References...................................................................................................................27 Boxes 1. The Year 2015—The “Business as Usual” Scenario .................................................2 2. Incentives and Subsidies .....................................................................................10 3. Constraints ............................................................................................................11 4. Applications for Coal Ash ....................................................................................17 5. Elements of the Participatory Planning Process ....................................................25 6. A “Toolkit” for State-Level Energy Planning...........................................................25 Figures 1. “All India” Emissions by Region in 2015.................................................................3 Tables 1. Summary of Emissions under the Reform Scenario in Bihar, 2014/2015 ................7 2. Estimated Tenth-Year Savings from Technologies in Andhra Pradesh....................9 3. Estimated Electricity Saved through Demand-Side Management .........................9 4. Potential Contribution of Renewable Energy Technologies .................................10 5. Existing Air Quality Standards for the Ministry of Environment and Forestry.......14 6. Andhra Pradesh—Cumulative Pattern of Generation Mix ....................................21 7. Andhra Pradesh—Impact on Cost and the Environment.....................................21
  • 5.
  • 6. 1 A Time for Decisions Unquestionably, power plays a funda- mental role in the economic development process.All countries seek to ensure a sup- ply of electricity that is affordable, reliable, andsecureinordertosustainmodernways of living. Producing electricity to meet modern needs affects the environment on a local, regional, and global basis. As de- veloping countries, including India, de- mand increasing amounts of electricity to sustain their economies, long-term plan- ning is needed to balance this growing need for power and environmental con- cerns. Practical strategies are needed to minimize the impact of growth on the en- vironment and, through the environment, on human health and well-being. India’s large reserves of coal are a major asset to the country, accounting for 70 percent of India’s current production of electricity. However, excessive use of this form of energy production—espe- cially without the use of strategies to miti- gate its effects—will cause the quality of the country’s air, land, and water re- sources to deteriorate. Specifically, • Small particles from combustion even- tually reach the ground, threatening human health and property. • Disposing of the ash that is produced as a byproduct of combustion requires large amounts of land; leaching ash can contaminate ground water. • Carbon dioxide released from fuel by combustion contributes to global warming and climate change. • Power stations may require large, and frequently environmentally valuable, land areas. • Large hydro and coal projects require resettlement and rehabilitation, and affect people. • Acid gases that are produced when fossil fuels are burned are eventually precipitated as acid rain. Avoiding environmental damage from the development of energy resources is among the key priorities of the South Asia environmental strategy for the en- ergy sector. Other priorities include the following: • Dealing with indoor air pollution from the use of traditional fuels, especially in rural households • Protection from urban air pollution • Developing better environmental gov- ernance • Mitigating the potential impacts of global climate change • Making the Bank more responsive to energy-environment impacts. Studies to date have clearly demon- strated that continuation of current poli- cies and practices in the power sector is not sustainable in financial terms. Prices today for electricity and fuels in India are distorted; electricity is often sold to agri- cultural consumers at prices that are well below the costs of production. This prac- tice leads to waste of electricity and also
  • 7. 2 A Time for Decisions Box 1. The Year 2015—The “Business as Usual” Scenario Without significant changes in power sector policy, by the year 2015 • India will be producing SO2 , NOx , particulate emissions, and ash at three times the current levels • Ash disposal facilities around power plants will require 1 square meter of land per person • CO2 emissions will be 775 million metric tons per year, as compared with 1,000 mil- lion metric tons per year now produced by power generation in the entire European Union. impairs the finances of state electricity boards. The poor financial condition of the boards may make it difficult to invest in new plants and maintain existing plants properly, especially environmental control equipment not essential to plant operation. Case studies for Andhra Pradesh and Bihar, states facing different energy chal- lenges with varying resources, show that the financial performance of the power sectors in both states will impose an in- supportable financial burden on their re- spective state governments. The rate of return on capital in Andhra Pradesh will become increasingly negative, reaching – 18 percent by 2015; in Bihar it will aver- age –14 percent from 1996 through 2015. The financial resources needed to main- tain and operate the power plants at the level needed to meet the projected de- mand are unlikely to be forthcoming. Under current policies, emissions of environmentally damaging combustion products may be expected to increase rapidly, doubling in Bihar and quadru- pling inAndhra Pradesh by the year 2015. Extrapolating the results to India as a whole reveals serious conditions (box 1 and figure 1). Emissions on the scale described above are bound to affect air quality and have major human health impacts. The damages caused by particulate matter to the respiratory system are a particular cause for concern. Consequences include significant increases in mortality, hospital admissionsforrespiratoryinfections,emer- gency room visits for bronchitis and other chronic pulmonary diseases, the number of days asthmatics experience shortness of breath, and the number of days residents experience restricted activity. Although the power sector contributes to the problem, most of the pollution, es- pecially in the urban areas, stems from other sources, notably residential and commercial stoves, industrial boilers, in- efficiencies in the transport sector and the liquid fuel chain, the extensive use of tra- ditional fuels in city slums, and emissions from nonenergy sources. Urban air pol- lution is, therefore, a cross-sectoral issue that requires a citywide approach to achieve comprehensive air quality man- agement. Thus, a strategy to address ur- ban air pollution must integrate a range of activities at the municipal level, espe- cially at small sources of energy and
  • 8. A Time for Decisions 3 Source: ESMAP (Joint UNDP/World Bank Energy Sector Management Assistance Programme), India: Enviromental Issues in the Power Sector, Report no. 205/98 (Washington, D.C.: Energy, Mining and Telecommu- nications Department, the World Bank, 1998). 2,000 1,800 1,600 1,400 0 200 400 600 800 1,000 1,200 CO2 (million tonnes) SO2 (k tonnes) NOX (k tonnes) Particulates (k tonnes) Ash (million tonnes) Northern region Southern region Western region East and northeast regions Figure 1. “All India” Emissions by Region in 2015 power stations located in densely popu- lated areas and in the transport sector. This strategy should also include a major fo- cus on the petroleum subsector. Currently the power sector in India is on the verge of fundamental and sig- nificant reforms that have profound implications for environmental manage- ment. India is moving from a publicly owned, vertically integrated, monopolis- tic power system with highly distorted prices for fuels and electricity to a more liberal system with market prices, com- petition, a greater role for the private sec- tor, and commercial incentives. These changes will affect every aspect of the en- ergy production system: the demand for electricity, the financial viability for all the entities involved, the choice of fuel and technologies, pricing decisions, and the respective roles and relationships among the state, the power sector, regulators, and fuel suppliers. During this time of transi- tion, it is critical to determine how best to take advantage of the opportunities it pre- sents to protect the environment and avert threats to public health. To find a more appropriate balance between the need to support economic development and environmental con- cerns, stakeholders must begin immedi- ately to take environmental impacts into account as long-term plans for power gen- eration are developed.
  • 9. 4 A Time for Decisions Depending on the unique needs and situation of the geographic area, differ- ent strategies for reducing negative en- vironmental consequences from power generation may be more or less effective. Decisionmakers can choose from a range of measures, using modeling tools to de- termine which combination of options will have the greatest positive impact. For example, the environmental impacts of power development may be reduced by using less electricity, preventing waste products from reaching the environment, adopting cleaner technologies for coal production, or using alternative forms of energy production that cause less environ- mental damage. Sound pricing strategies for electricity and fuel, changes in the structure of the power sector, and ways of looking at the cost of energy produc- tion that take environmental impacts into account would also help preserve envi- ronmental quality. While power system expansion plan- ninghaspreviouslybeenconductedatthe national level using state-provided data on regional needs, the decisionmaking process in India is being decentralized. Some state electricity boards are being un- bundledintoseparategeneration,transmis- sion, and distribution entities. Corporatization and, to an increasing de- gree, privatization are an integral part of this process. The unbundled institutions will assume the responsibility for the criti- cal functions of planning and decisionmaking. To meet the need for tools and data to support state-level decisionmakingduringthisimportanttran- sition, the government of India, the World Bank, and the U.K. Department for Inter- nationalDevelopmenthavecollaboratedto develop a decisionmaking framework. They tested a participatory planning pro- cess and analytical tools that can help decisionmakers in India both to improve the planning and management of their power systems, taking into account the majorenvironmentalimpacts,andtoassess the economic and environmental tradeoffs associated with different options for power generation. This report summarizes what has been learned through this process in two very different states, Andhra Pradesh and Bihar, and assesses the broader impli- cations of these findings for energy plan- ning in other states in India. The case studies were supported by a set of special studies dealing with interfuel substitution;thewelfareeffectsofincreases in electricity tariffs; the technical and eco- nomic potential for renewable energy tech- nologies; demand-side management; the possibilities of adopting market-based in- struments in India; the options available to mitigate the environmental impacts of coal-fired power stations and coal mining; and the management, disposal, and utili- zation of ash from thermal power plants. The special studies provided basic generic data to supplement the detailed state-spe- cific information collected under the case studies.
  • 10. 5 2 Options for Reducing Environmental Impacts This section is based on a review of avail- able data, including special studies and lessons learned from other countries. A particularly important source of data is provided by case study material relating to two contrasting Indian states, Andhra Pradesh and Bihar. While no two states can adequately represent the richness and complexity of the Indian subconti- nent, these two states and their distinc- tive situations offered researchers an opportunity to explore a range of issues and options. Bihar is relatively poor, and its state electricity board is in a precari- ous situation, financially and technically. Heavy industry accounts for about 40 percent of the demand for power in Bihar, while agriculture accounts for a similar percentage of the requirements of Andhra Pradesh. Although both areas have depended primarily on coal as a power source, Andhra Pradesh has more ready access to other supply options than Bihar. The contrasts between them, ex- plored through different scenarios using computer models, have yielded insights and examples that will be cited through- out this section. Options available to India as it seeks to reduce the environmental impacts of power generation include the following strategies: • Reforming and restructuring the power sector • Rehabilitating generating plants and transmission and distribution net- works • Managing demand • Using renewable energy supplies • Internalizing the costs of pollution • Reducing and recycling combustion by-products • Siting plants to reduce environmental damage. The following section explores the relative merits of these strategies and the obstacles to their use. Reforming and Restructuring the Power Sector Though it is moving toward reform, India’s current government policies continue to maintain some fuel prices at artificial levels, with inevitable and harmful consequences to the environ- ment. While most coal prices have been deregulated, power station grades of do- mestic coal are still priced below the cost of production. The true value of the bet- ter grades is underestimated. Cleaner im- ported fuels are priced too high by comparison with domestic coal. Prices for the transport of goods by rail, includ- ing coal, are generally subsidized, further encouraging the use of the domestic product and its high ash content. As a result,
  • 11. 6 Options for Reducing Environmental Impacts • Indian coal is preferred as a fuel for power generation over other fuels with lower ash content. • The relative prices of different grades of coal give no incentive to the coal producer to increase output of the bet- ter-quality coals. • Distorted prices for transport affect the choice between pit-head and load-cen- ter plants, shifting the location of en- vironmental impacts. • Demand is maintained at artificially high levels. As government reform progresses and prices for fuel rise to a level that reflects their true “economic” cost, stakeholders in the energy system will have reason to make different choices: • When the tariff structure is changed to reflect the economic costs of produc- tion, higher prices for electricity in the residential and agricultural sectors will dampen demand. • As electricity producers are motivated by commercial incentives rather than dependence on government subsidies, they will have adequate cash flow to rehabilitate transmission and distribu- tion systems and to modernize gener- ating plants, reducing electricity loss through inefficiency. • Commercial incentives will encourage power utilities to offer higher prices for better coal and spur coal suppliers to invest in coal beneficiation plants. • Commercially motivated producers will search for cost-effective ways to encourage ash utilization and dis- posal. They will improve metering, monitoring, billing, and collection procedures, which will increase the amount of available cash. • Power system reliability will increase; consequently, many consumers who now install their own power sources will be able to rely on the grid system. The fact that electricity once lost or sold to agriculture at a subsidized price can instead be sold to agriculture at higher prices or to industry at a profit will con- tribute strongly to improved financial per- formance for energy providers. Clearly the change in tariff policy makes the dif- ference between a system doomed to fail- ure and one that has the capacity to meet future demand efficiently. Improving the cash flow of utilities has significant environmental impacts. One major impact will be that providers can build new plants, which will obvi- ously increase the volume of environmen- tal impacts. However, these plants will be intrinsically cleaner and more efficient, displacing old plants; available cash will also enable producers to bring the plants in line with standards. The latter effects will tend to bring down specific emissions of pollutants. The Bihar case study dem- onstrates that reform would have an over- all beneficial effect on pollution levels and at the same time produce more electricity (table 1). Results for the Andhra Pradesh Case Study were comparable (ASCI Consultancy 1998). While reforms will have a beneficial effect on the environment, what other major effects could they have on public welfare? Data are limited, but there could be significant impacts on residential con- sumers and on agriculture. First, costs may go up for households with access to
  • 12. Options for Reducing Environmental Impacts 7 electricity, but the quality of their supply will improve.Also, with proper metering, demand will adjust to efficient levels. As reforms improve the cash flow of electric- ity companies, they should be able to of- fer power to new consumers. Second, increased electricity prices to agricultural customers could result in a more efficient use of water. This, in turn, could lead to improved yields, since overwatering dilutes the effectiveness of fertilizers. Metering could also have an equalizing effect on access to energy. Cur- rently, small farmers often experience long waits for pump connections, while more wealthy farmers are able to use diesel to meet their energy needs. Recent studies suggest that farmers are willing to pay more for reliable access to energy (based on unpublished findings from ongoing studies of power supply to agriculture for the World Bank). Rehabilitating Generating Plants and Transmission and Distribution Networks Losses of energy as a result of weak- nesses in India’s transmission and dis- tribution system were reported by public sector utilities to be as high as 21 per- cent. This figure is generally recognized by experts familiar with the power sector in India as a serious underestimate. Most state-level studies cite a much higher per- centage—perhaps even double the pub- lic utility figure. The losses in India are much greater than in EastAsian countries. The best performers were Singapore (9.1 percent) and the Republic of Korea (10.2 percent). Factors that contribute to the high rate of loss in India include the following: • Lack of investment in rehabilitation of the transmission and distribution system • Weak transmission and distribution lines • Long transmission and distribution lines • Low power factor operation • Too many transformation stages • Pilferage and theft. Modeling suggests that the percent- age of power lost through transmission and distribution could be reduced in most states to as low as 10 percent by 2010. If energy providers are motivated to make improvements through price re- form, changes in maintenance, metering, Table 1. Summary of Emissions under the Reform Scenario in Bihar, 2014/2015 Cumulative Total Ash CO2 NOx SOx SPM (million Scenario (million t) (kt, PV) (kt, PV) (kt, PV) t) “Business as Usual” 142 804 929 62 36 Reform 127 685 828 54 34 Note: CO2 = carbon dioxide, kt = metric kilotons, PV = present value, SOx = sulfur oxide, and t = metric tons. Source: SCADA 1998.
  • 13. 8 Options for Reducing Environmental Impacts monitoring, and billing and collection would make more money available to re- habilitate the system—clearly a win-win prospect. System rehabilitation not only would result in across-the-board reduc- tions in environmentally damaging emis- sions, but would yield high rates of return both in financial terms and in eco- nomic benefits to society. Case studies found system improve- ments to be cost-effective both in Andhra Pradesh and in Bihar, which has a smaller system that is in worse condition. Both are currently experiencing energy losses of 30 percent or more. By rehabilitating the ex- isting transmission and distribution sys- tem, both could significantly reduce operating costs and achieve measurable environmental benefits for area residents. In Andhra Pradesh, measured envi- ronmental impacts—”attributes”—would be reduced by 3 percent and operating costs by 4 percent. In Bihar, attributes would be reduced by 5 to 6 percent. Ex- penditures on operations would fall by more than 6 percent. Managing Demand Energy use is currently less efficient and less cost-effective than the best avail- able technology would allow. Conse- quently, a more negative environmental impact is occurring than is actually nec- essary to meet load requirements. De- mand-side management refers to the use of policies to reduce energy consump- tion, with a resulting decrease in energy production and new plants. Modeling studies show that demand-side manage- ment programs could reduce total sys- tem costs (in present value terms) and power consumption by approximately 6 percent by 2015, resulting in an Indiawide reduction of measurable en- vironmental impacts (or attributes) of about 10 percent. Specifically, sulfur di- oxide (SO2 ) and nitrogen oxide (NOx ) would be reduced by 9 percent, total sus- pended particulate matter (SPM) and car- bon dioxide (CO2 ) by 10 percent, and ash by 11 percent. Many diverse technologies are avail- able to reduce energy consumption. Those that are most likely to significantly reduce demand will vary by region, depending on the residential and commercial mix of energy consumers and other factors. Table 2 contains some examples of energy sav- ings that the Andhra Pradesh case study shows would be achieved in the tenth year of a demand-side management program in that state (ASCI Consultancy 1998). Other governments have tried differ- ent policy strategies to encourage de- mand-side management. Examples that may also work well in India, although they are not among the conclusions of this work, include the following: • Promoting energy service companies to fund and manage investments in energy efficiency and to share savings with users • Placing levies on utilities to fund en- ergy conservation programs • Requiring utilities to engage in de- mand reduction activities as a condi- tion of construction permits or tariff increases. Demand-side management programs can be implemented or funded by utilities, the state, the private sector, or other insti- tutions. Once price reforms are in place, however, utilities lose their financial
  • 14. Options for Reducing Environmental Impacts 9 interest to reduce demand. Consequently, the role of the private sector in promoting changes in consumer behavior may in- crease. For example, an independent en- ergy service company could promote such programs on a commercial basis, a strat- egy that has been used in the United States and in Western Europe (table 3). Using Renewable Energy Supplies Over the next fifteen years renewable energy supplies could increase by more than seven times, and their share in the country’s total power generation capac- ity could nearly triple. At roughly 1,378 megawatts, renewable energy technolo- gies currently account for about 1.5 per- cent of total power generation capacity (Ministry of Non-Conventional Energy Sources 1999), of which wind power ac- counts for about 72 percent (992 mega- watts) and small hydro roughly 13 percent. Biomass and solar energy sources account for the rest. The Minis- try of Non-Conventional Energy Sources has estimated that 126 gigawatts of power generation capacity is available from renewable energy sources in the long term. Although the technical poten- tial for the use of renewable energy sources in India is vast, the prospects for expansion may be limited in the short Table 2. Estimated Tenth-Year Savings from Technologies in Andhra Pradesh Savings in Year 10 Percentage Technology (gigawatt-hours) in total savings High-efficiency pumps 3,453 10.01 Fluorescent lamp standards 1,007 0.00 Industrial cogeneration 806 1.34 Metering pump sets 597 1.75 Commercial fluorescent lighting 493 1.32 More efficient rural lighting 475 1.53 More efficient urban lighting 206 0.14 High-efficiency refrigerators 167 0.29 Others 911 2.45 Total 8,115 16.38 Source: ASCI Consultancy 1998. Table 3. Estimated Electricity Saved through Demand-Side Management (percent) Study 2001/2002 2006/2007 2011/2012 2014/2015 Andhra Pradesh 4.5 11.3 8.3 5.6 Bihar 2.1 7.0 8.1 9.8 CERI 7.4 7.7 8.2 CERI = Canadian Energy Research Institute and Tata Energy Research Institute. Source: Canadian Energy Research Institute and Tata Energy Research Institute 1995.
  • 15. 10 Options for Reducing Environmental Impacts and medium terms because of a number of constraints (see box 3). Aspecial study of renewable energy technologies (Envi- ronmental Resources Management 1997) has found that continuation of govern- ment policy can give a boost to the pen- etration of renewable energy technologies to 11,440 megawatts, roughly 4 percent of total generation ca- pacity in 2011–12 (see table 4). Sensitiv- ity analysis on capital costs show that capacity addition of 8,560 megawatts (nearly 3 percent to the country’s total generation capacity) is feasible through renewable energy technologies in 2011– 12 even in the absence of any incentive and subsidy scheme (see box 2). The spe- cial study, therefore, concludes that gov- ernment incentives will need to continue in the short and medium term to enable renewable energy technologies to pro- vide an increasing share of the nation’s power supply. These incentives are out- lined in box 2. The renewable energy technologies could become more attrac- tive economically if energy sector reform Box 2. Incentives and Subsidies A number of incentives are offered for renewable energy technology projects, which in- clude soft loans, reduced customs duties on imported material and equipment, 100 per- cent depreciation allowance, exemptions from excise and sales tax, remunerative price with escalation clause for power fed into the grid, facilities for wheeling and banking power, and large capital subsidies. For example, in Maharashtra, up to 30 percent capital subsidy is being offered to private developers of wind power projects. For biomass, a capital subsidy of up to 50 percent of the cost of projects (subject to a maximum of Rs. 2.5 crores per megawatt) is being offered. In the northeastern region, the recently announced a government incentive package for the promotion of small hydro projects includes a capital subsidy of up to Rs. 3 crores per megawatt or 50 percent of the project cost. Re- garding SPV, the Ministry of Non-Conventional Energy Sources provides two thirds of the project cost (subject to a maximum of Rs. 2 crores per 100 kW) for the procurement of SPV modules, structures, cables, power conditioning units and grid interfacing equip- ment, while the balance is required to be met by implementing agencies. The solar ther- mal power plant in Rajasthan would be supported by grants from the central government of up to Rs. 50 crores and from the Global Environment Facility of $49 million, including a technical assistance component of $4 million. Table 4. Potential Contribution of Renewable Energy Technologies (gigawatts) Installed capacity in gigawatts (electrical) 2001/2002 2006/2007 2011/2012 With government financial incentives 4.5 (3.4%) 7.1 (3.5%) 11.0 (3.8%) Without government financial incentives 3.1 (2.3%) 4.9 (2.4%) 6.7 (2.3%) Note: Percentages of the totals for India are in parentheses. Source: Environmental Resources Management 1997.
  • 16. Options for Reducing Environmental Impacts 11 Box 3. Constraints Although the cost of generation of small hydro at about Rs. 1.43 per kilowatt-hour is highly competitive with conventional technologies, some renewable energy technologies, such as solar photo voltaic (SPV) and solar thermal, are far less economically attractive than conven- tional technologies. For example, despite the rapid declines in SPV costs, the current esti- mated cost of SPV modules are around $4 to $5 Wp (peak watt). Even if the cost declines by 50 percent to approximately $2.5 per Wp, the technology would remain uncompetitive com- pared with $1.05 to $1.35 Wp (Rs. 3.5–4.5 crores per megawatt) for other renewables and con- ventionaltechnologies,notwithstandingthelowvariablecostsassociatedwithSPVtechnology. Several other factors constrain the use of renewable energy technologies. They are classi- fied as technological, institutional, financial and economic, and infrastructural, as follows: Technological • Most renewable energy technologies have not achieved maturity within the country, and a large portion are imported. • Renewable energy sources are site-specific, and the supply may not be continuous. • Technical information is not easily available either for the entrepreneur or the consumer. Institutional • A top-down centralized government approach is generally adopted for this poten- tially highly decentralized option. • Little encouragement has been received from the state electricity boards. • There is a lack of awareness about the potential environmental benefits. • There is a lack of serious education and training for operation and upkeep. • Incentivesaremisused;theyarerelatedtoinvestmentratherthantoperformanceofplants. Financial and economic • Diesel and electricity are subsidized for use by agriculture and residential consumers. • Funds allocated to renewable energy sector are minimal when compared with fossil fuel and nuclear energy options. • In some cases, large initial investments are required. Infrastructural • The land requirement for renewable energies could be very high. • Poor grid availability proves to be a major deterrent. • There is a lack of proper maintenance and servicing facilities at the local level. A number of options to address the constraints exist, some of which are already at various stages of implementation: the collection of information; dissemination and train- ing campaigns; the reorienting of the investment portfolios of power utilities to develop decentralized power options and encouragement for the utilities to ensure grid connec- tion to private developers; formulation of a policy for power purchase; promotion of the financing of economically viable renewable energy technologies by developing and intro- ducing innovative financing schemes, such as lines of credit, revolving funds, and hire- purchase plans, to the conventional loan schemes; and formulation of government policy and legal and regulatory frameworks that encourage private sector participation.
  • 17. 12 Options for Reducing Environmental Impacts becomes more widespread and the sub- sidies associated with conventional en- ergy are reduced. Agriculture and residential consumers of power are heavily subsidized by the state govern- ments. Net subsidies to power consum- ers—revenue requirements less the contributions state electricity boards re- quire from state governments— amounted to roughly $3.7 billion in 1995–96, about 1.4 percent of gross do- mestic product. Water, wind, and biomass are the most economically feasible renewable sources of energy for the near term in India. Solar energy, however, has enormous potential if it can be made more economically vi- able. Even in the near term, it may be an economically competitive option for many remote areas where the cost of grid connection is very high. • The high rate of photosynthesis from available biomass in India, such as crop residues, makes this a prospec- tive resource. Bagasse-based cogen- eration uses a combination of direct combustion and gasification of biom- ass to generate energy. At the time of this report, eighteen biomass projects have been installed and another sev- enteen are under construction. There are technical challenges, however, in using this resource effectively, as well as logistical ones in ensuring an ad- equate and timely supply of fuel on a year-round basis. The estimated po- tential for bagasse conversion in India is approximately 3,500 megawatts. • The first wind farms in India were in- stalled in the coastal areas of Tamil Nadu, Gujarat, Maharashtra, and Orissa. The main potential is for use in these and other states within South In- dia. Ninety-eight sites have been iden- tified with annual mean wind speeds of more than 18 kilometers per hour. Together they would provide 5,000 megawatts of energy. Constraints in- clude operational problems in match- ing supply and demand, since wind power often varies seasonally. • The potential for small hydro power in India is also strong, with an esti- mated potential to contribute 10,000 megawatts. The Ministry of Non-Con- ventional Energy Resources, which has examined 2,679 sites that have potential capacities of up to 3 mega- watts each, estimates that small hydro power could represent 1 percent of the likely installed Indiawide capacity for power generation by the year 2015. • The technical potential of solar energy in India is huge. The country receives
  • 18. Options for Reducing Environmental Impacts 13 enough solar energy to generate more than 500,000 terawatt-hours of elec- tricity, assuming 10 percent conver- sion efficiency. This is three orders of magnitude greater than the likely demand for electricity in all of India by 2015. However, even though the cost of photo voltaic cells is falling and unit costs of production are expected to decline, the cost of solar energy is still higher than that of other renewable energies.As further technical progress is made, it will probably become a sig- nificant long-term energy source. Even in the near term, it may be an economically competitive option for many remote rural areas. Internalizing the Costs of Pollution The government is responsible for setting the rules for how the costs of environmen- tal pollution are apportioned between so- ciety and the polluting agency. The principle of “the polluter pays,” which has generally been adopted in environmental regulation, obliges the polluting agency to bear the cost of reducing or maintain- ing its environmental waste at an ac- ceptable level. This is called “internalizing” the costs. If the rules of environmental management set by the government were both adequate and en- forced, all costs would be internalized within the agency. The agency would be motivated, by whatever means chosen by the policymakers, to fully bear these costs, and would therefore make the changes needed to reduce its emissions. This can be accomplished by using technical stan- dards that require the polluter to reduce its emissions to target levels or face sig- nificant consequences (the “command and control” strategy), and market-based instruments that seek to change the na- ture of the incentives and disincentives faced by polluters to perform acts that benefit society. Guidelines and standards are in- tended to be a means of forcing a busi- ness to change its operations in order to reach prescribed levels, increasing the cost to the business. In principle, the ad- verse environmental impacts of decisions in the power sector could be reduced by implementing more stringent standards than those currently applied in India. For this reason, the study attempted to esti- mate the incremental costs of implement- ing the World Bank’s new standards for air quality and emissions, which are more stringent for SO2 and SPM than current Indian standards.Analysts concluded that the incremental costs associated with meeting World Bank standards need not be substantial if plants are properly sited. More significant benefits, however, will result from improved implementa- tion of existing standards than from adoption of new and stricter standards (table 5). Participants in the National Decisionmakers Workshop held as part of this study stressed that better imple- mentation of monitoring and enforce- ment procedures will be of more immediate benefit to India. Market-based instruments attempt to meet environmental objectives by working through market mechanisms. The common element of all market-based instruments is that they work through the market, attempting to alter the behav- ior of economic decisionmakers, such as firms and households, by changing the
  • 19. 14 Options for Reducing Environmental Impacts incentives and disincentives they face. For example, if ash disposal permits were allocated equally to all new power plants, regardless of their circumstances, some permits might be sold by those that find it easiest to meet the targets, which would reduce the total cost of compliance for all power plants. Other examples of market-based instruments include pollu- tion or input taxes, product charges, and differential tax rates. Market-based in- struments are most easily applied in situ- ations where there are few “actors” and where impacts can be measured easily. They also work best when polluters must face hard budget constraints. A number of studies have demon- strated the cost-effectiveness of market- based instruments over traditional “command and control” regulatory strat- egies that require all polluters to meet the same discharge standards. Market-based instruments acknowledge and use the key fact that the costs of reducing pollution are not the same across all firms. Simula- tions done in the United States show that these instruments can be between 1.5 and 4 times as cheap as a “command and con- trol” regime across a range of pollutants and locations. Realizing these potential savings, however, will require careful de- sign and implementation. Several significant barriers exist to successful use of market-based instru- ments in India: • Misconceptions among stakeholders about market-based instruments • A vested interest in the status quo on the part of both regulatory agencies and firms • A lack of good governance, including an ineffective institutional framework, a lack of local-level capability, and in- sufficient technical understanding of issues at the state board level • The challenge of changing the current legal system • The “soft” budgets of the state-owned enterprises that dominate the power sector • The potential for malpractice in the use of funds raised through market-based instruments • The potential for higher costs to the industry in some instances. Before market-based instruments can do their work, a suitable legislative and regulatory framework for administering them must be established. Further, it is essential to recognize that unless power plants and companies have strong com- mercial incentives to make the desired Table 5. Existing Air Quality Standards for the Ministry of Environment and Forestry Air quality standard Residential and rural areas Industrial and mixed areas (mg/m3 ) SO2 NOx SPM SO2 NOx SPM 24-hour average 80 80 200 120 120 500 Annual average 60 60 140 80 80 360
  • 20. Options for Reducing Environmental Impacts 15 choices, market-based instruments will not produce the desired effects. Reducing and Recycling Combustion By-Products Two specific clean coal technologies were considered in the case studies conducted in this project: Pressurized Fluidized Bed Combustion in Bihar and Integrated-Gas- ification Combined Cycle in Andhra Pradesh. The two technologies, consid- ered the most feasible in current circum- stance, do improve combustion efficiency and reduce emissions to the environment. Case study data suggest that the use of these technologies would result in only marginal reductions in ash and CO2 , but that they would have more substantial impacts on total SPM and SO2 , reducing them by as much as 17 percent in Bihar. Their use would also reduce NOx emis- sions by 8 to 10 percent. Both require higher capital and operating costs, how- ever, which exceed those of power plants that do not use these technologies by 10 to 15 percent. Consequently, neither tech- nology would be implemented on the ba- sis of normal market incentives. In 1996/97 alone, coal production gen- erated 62 million metric tons of ash. The high ash content of Indian coal makes ash disposal one of the most pressing environmental problems India faces as a result of its reliance on coal-powered energy. The steady increase in open-cast mining, which now supplies the bulk of Indian coal, has been a major factor in the falling calorific value and rising ash con- tent of Indian coal. Storage of fly ash de- mands large land areas; once land is used for this purpose, it is expensive to reclaim the land so that it can be used in other ways.1 Often, this financial investment in land recovery is not made and the land is simply lost. The Andhra Pradesh and Bihar case studies clearly highlight the environmen- tal hazards associated with current prac- tice. In Andhra Pradesh, only 5 percent of the ash stock piled outside thermal plants is used by industries. The rest is dumped in ash ponds or left in a pile outside the plants. In Barauni (Bihar), ash ponds are located on permeable sand, allowing groundwater contamination. Ash has spilled to local agricultural lands. Rivers in Patratu are said to be full of ash; dur- ing dry seasons, there are significant emis- sions of fugitive dust. Not only does the ash cause environ- mental damage, but it also increases the 1. During combustion in power plants, the pulverized coal particles are injected into the furnace and ignited in suspension. The mineral matter in coal is transformed, leading to the formation of ash. The ash residues of combustion possess a wide range of both physical and chemical properties that depend on the coal utilized, the combustion regime under which they are generated, and the method of collection. The ash that enters the flue gas stream is called fly ash, and the ash that falls through to the furnace bottom is called bottom ash. Fly ash generally constitutes about 80 percent of the total ash produced. Coal ash is a complex material in terms of specific gravity, size, morphology, microstructure, and mineralogy. The ash matrix consists of a mixture of aluminosilicates, silicates, iron oxides, and a certain amount of alkali-silicates in both amorphous and crystalline form. The mineralogical constituents of coal ash are SiO2 , Al2 O3 , Fe2 O3 , and CaO.
  • 21. 16 Options for Reducing Environmental Impacts cost of transport to the power station site and causes wear and tear on equipment. Plants that burn the high ash coal are in- trinsically more expensive and less effi- cient because they must handle large quantities of noncombustible and abrasive matter. To date, limited use has been made of coal washing, a process that removes some of the mineral matter that would result in ash prior to burning. Because of the properties of Indian coal (it is diffi- cult to separate mineral matter from car- bon without also losing carbon), the economic tradeoffs for coal washing make it a controversial option. Conse- quently, situational analysis is needed to determine when transport is economi- cally feasible. The Andhra Pradesh Case Study concluded that washing coal with marginally high ash content (30–38 per- cent) or with calorific values greater than 4,000 kilocalories per kilogram may not be advantageous. However, as long as the total cost remains competitive with that of imported coal, coal washing is a viable alternative for coal with high ash content and low calorific value that must be trans- ported over distances of more than 1,000 kilometers. Cost recovery incentives are essential, however, to make this option at- tractive (ASCI Consultancy 1998). The major economic benefit resulting from the use of the washed coal is the lower capital cost experienced by plants specifically designed to burn this coal. However, the waste carbon must be dis- posed of, contributing to environmental damage. Much of the large volume of solid waste products is in the form of fine carbon particles suspended in water. Ash from improperly designed ash ponds can enter the aquatic ecosystem, contaminat- ing groundwater, as well as reservoirs, streams, and rivers. While well-designed and well-managed ash disposal systems would result in minimal pollution, most ash ponds in use at India’s power plants are not properly designed or operated and do not comply with Central Pollution Control Board standards. Some of this lost coal can be burned in a fluidized bed process or used as backfill in mines. An alternative ap- proach to the fly ash problem is to en- courage its use in a wide variety of commercial applications. To date, how- ever, India has been less successful than other countries in encouraging commercial use of this waste material.
  • 22. Options for Reducing Environmental Impacts 17 In 1996/97, only 2 percent of the 62 mil- lion metric tons of ash produced by burning coal in India was used commer- cially. By comparison, China produced 55 million metric tons of ash and re- cycled 25 percent of it. This poor record is not for any lack of possible applica- tions relevant to the country’s needs. The greatest emphasis has been placed on its use in construction materials, since In- dia has a chronic shortage of housing, and building materials are always needed. It is necessary to add binding reagents to ash and clay, however, to meet applicable standards. As a result, the production of bricks from fly ash appears to be economical only when pro- duction exceeds 25,000 bricks per day and when the bricks are used within 50 kilometers of the production site. Avariety of other applications are also promising. For example, it may be used as filler, as a soil conditioner, or as a replace- ment for cement. Some buildings in India have already been built with concrete that contains ash. A report prepared for the World Bank sees the greatest potential for environmental benefits in “low value- added” uses of fly ash (uses that do not require significant processing) (Water and Earth Science Associates 1996). Examples include uses in industrial effluent treat- ment,roadmaking,embankmentconstruc- tion, and plantation raising (box 4). There are, however, obstacles to the use of these productive variations that planners must take into account. These include quality variations in the coal, transportation costs, technological limita- tions, impaired quality as a result of wet methods of coal collection and disposal, and consumer resistance to products that contain coal ash. Potential users must also consider the following: Box 4. Applications for Coal Ash Agriculture: As an absorbent, artificial aggregate, fertilizer, and soil conditioner. Building materials: For aggregate, bricks, building blocks, ceramic products, paving ma- terials, roofing tiles, wallboards, and paneling. Cement and concrete: In cement, cement extender, cement substitute, concrete, concrete filler, foamed concrete, and mortar. Civil engineering: Aggregate, asphalt filler, backfill, embankment materials, foundations and road construction, grout, and hydraulic barriers. Industrial materials: Abrasives, absorbents, artificial sand and aggregate, ceramic mate- rials, decorative materials, filter media, gas cleaning, and industrial fillers. Materials recovery: Recovery of alumina, iron and silicon, and trace elements. Waste treatment: Grout and waste stabilization. Source: Water and Earth Science Associates 1996.
  • 23. 18 Options for Reducing Environmental Impacts • The price that industry must pay to the generators for the ash (if any), plus the cost of transport • The cost of alternative materials • The impact of using coal ash on the quality of the end product • The impact that using coal ash has on the cost of the production process. The National Thermal Power Corpo- ration, which runs thirteen coal-fired power plants in India, has been success- ful in increasing the utilization of fly ash by developing policies to encourage en- trepreneurs to make use of the waste. In 1991 it established an Ash Utilization Di- vision at the corporate level, with Ash Utilization Cells at each power plant. Its six-year program to promote the internal use of ash in construction and to facilitate the use of ash by private companies suc- ceeded in increasing ash utilization in its plants from 2 to 3 percent in 1991 to 10 percent in 1996/97. The corporation’s in- centives for entrepreneurial use included such policies as the following: • Dry fly ash is provided free of cost to users in and around the power station for an initial period of five years. • Surplus land is made available for a discounted rent to companies that use ash. • The corporation invests equity in joint venture companies for ash utilization. The National Thermal Power Corporation’s experience suggests that the use of fly ash can be encouraged by changesinplantpolicy.Mostplants,how- ever, do not appear motivated to pursue these policies. While in theory power plants are required to meet standards for ashdisposal,inpracticethesestandardsare oftennotmet.Thepoorcomplianceimplies that the actual cost of ash disposal in In- dian power plants is much lower than the costs in well-designed and well-managed systems. Many state electricity boards are apparently more likely to save money through poor ash pond management than by encouraging industry to use ash. Con- sequently, the economic potential for the use of ash in India is far from realized. The previously cited “Review of Coal Ash Uti- lization” (Water and Earth Science Associ- ates 1996) suggests that the current problems of ash disposal and manage- ment could in part be corrected through stronger enforcement of present environ- mental standards. Currently the government of India provides some fiscal incentives to en- courage the use of ash. Bricks and other building materials using 25 percent or more fly ash as raw material are exempt from excise duty. Also, import machinery needed to produce building materials from ash is exempt from customs duty if it is not available within the country. The government has also taken several admin- istrative actions: • It has asked state governments to pre- pare action plans for using 50 percent of fly ash by the year 2000. • It has asked State Pollution Control Boards to be lenient with industries that use industrial wastes. • It has required environmental clear- ances of thermal power plants, which emphasizes the need to arrange for dry ash collection and use. Two additional policy options could be used to increase the use of fly ash:
  • 24. Options for Reducing Environmental Impacts 19 • Binding utilization levels. Binding targets imposed by the central govern- ment could be effective, provided that the targets are well designed and geo- graphically differentiated to reflect the economic potential for the use of ash in different areas. • Ataxonashdisposal.Suchataxwould have to be combined with power sec- tor reform and commercial and regu- latory incentives to have a significant effect. If environmental standards are enforced more strictly, however, an ash disposal tax will be unnecessary. Siting Plants to Reduce Environmental Damage Since the construction of many new coal- fired plants will be needed to meet forecast demand, it is important to consider the en- vironmental impacts attributable to plant location.Itisinstructivetoconsidertherela- tive disadvantages and advantages of two types of power plant sites: at a load center (that is, in an area where a high population of power users is concentrated), and at the pit-head (in a sparsely populated area). In many cities, other significant sources of pollution will already be present, such as vehicle emissions, resi- dential coal burning, small generators used in power shortages, and pollution from nonenergy sources. It is important to measure the background levels of pol- lutants to determine whether a plant can be added without exceeding target levels. One reason for siting plants in load areas, despite the high levels of pollution that may already exist, is to reduce the costs of transmitting and distributing energy. Currently, India’s system is inefficient in many areas. For example, in Bihar, trans- mission lines could lose as much as 9 per- cent of the energy transmitted from a new power plant, compared with less than 1 percent loss in the best international prac- tice. If not corrected, this loss will require the production of more electricity, which will further increase pollution. Though siting new plants at load cen- ters does reduce the amount of energy lost in transmission, the coal itself must be transported farther to reach the load cen- ter (predominantly by rail). The environ- mental impact of this transport is comparatively slight, however. Similarly, though sources of pollution also exist at the pit-head, the levels are much less sig- nificant. In rural areas, existing back- ground pollution includes SPM. At the
  • 25. 20 Options for Reducing Environmental Impacts coal mine itself, SPM will arise from the mine itself and as a result of vehicles trans- porting material from the mine. These background SPM levels could be reduced to acceptable limits through the use of high-efficiency electrostatic precipitators. When new plants are sited, the char- acteristics of the terrain must also be con- sidered. Air dispersion modeling in the Bihar case study led to the conclusion that concentrations of SPM, NOx , and SO2 tend to be higher on hilltops than flat terrain, though any area will have specific geo- graphic characteristics that increase or de- crease its ability to disperse pollutants. Planners will need to model the type and quantity of pollutants released in relation to areas where people are living in the greatest numbers. Using Options in Combination When these options are used together, significant environmental benefits can be achieved even though the individual impact of each option may be modest. In Andhra Pradesh, a combination of options consisting of greater use of renew- able energy sources, demand-side man- agement, coal washing and clean coal technologies, and rehabilitation of the transmission and distribution system could reduce coal-based power genera- tion by 18 percent by 2015. Total system costs (in present value terms) would fall by about 4.5 percent, with significant en- vironmental benefits: SO2 and NOx levels would fall by 27 percent and 21 percent, respectively, while the decline in total SPM, CO2 , and ash would be on the order of 16–18 percent (tables 6 and 7). In Bihar, a mixture of demand-side management, greater use of renewable energy sources, and rehabilitation of the transmission and distribution system would reduce coal-based power genera- tion by 15 percent by 2015. Total system costs would fall by about 7.5 percent, with striking environmental impacts. SO2 lev- els would decline by 7 percent, NOx by 4 percent, total SPM by 8 percent, and CO2 by 10 percent. Participants in the National Decisionmakers Workshop and the Na- tional NGO Workshop stressed that op- tions will not be used or sustainable without some measure of reform. Four critical strands must be woven together to achieve success: • Getting the price of electricity right so as to send the correct signals to consumers to encourage them to in- vest in energy-saving practices and technology • Getting the price of fuels right to “cre- ate a more level playing field” for natu- ral gas and renewable energy sources • Increasing the commercial motiva- tion of utilities to give them the in- centives to make choices that benefit the environment, such as improving ash management and rehabilitating transmission and distribution systems • Increasing the funds available to utilities to make improvements by raising tariffs. Introduced as an integrated package within the framework of sector reform, case studies and other evidence suggest that an appropriate combination of op- tions can succeed together in significantly reducing environmental damage from power generation, with its associated negative impacts on the quality of life and health of residents.
  • 26. Options for Reducing Environmental Impacts 21 Table 6. Andhra Pradesh—Cumulative Pattern of Generation Mix (over the study period 1997–2015) Scenario CoalHydrocarbons HydroOther Renewables Gigawatt- Gigawatt- Gigawatt- Gigawatt- hour % hour % hour % hour % IFS 965,474.0 70.0 232,923.0 16.9 181,182.0 13.1 — — Combinations 786,548.0 63.5 246,261.0 19.9 181,183.0 14.6 24,352.0 2.0 Memo: reduction in coal-based generation 178,926.0 18.5 — Not available. Notes: 1. IFS refers to interfuel substitution. The scenario assumes that current tariff policies and demand trends will continue and that traditional supply side planning and choices between fuels will be made on the basis of economic cost. 2. Combinations: The scenario examines the combined effort of demand and supply side measures. On the demand side, the scenario considers demand-side management (DSM) and transmis- sion and distribution (T&D) loss reduction (T&D losses assumed to decline from 20 percent under the refer- ence case to 10 percent), the impact of which is manifested in reductions in generation equivalents. The supply-side measures consider such options as clean coal, new technologies (pressurized fluidized-bed com- bustion in Andhra Pradesh), and a reasonable amount of renewables introduced. Table 7. Andhra Pradesh—Impact on Cost and the Environment Emissions CO2 SOx NOx Total SPM Ash Total cost (million (metric (metric (million (million Land Scenario (Rs. billions) metric tons) kilotons) kilotons) metric tons) metric tons) (ha) IFS 742.2 1,235 2,552 2,576 252 251 2,008 Combination 708.4 1,011 1,851 2,027 212 207 1,656 Memo: % reductions in present value of cost and environmental impact 4.6 18.1 27.5 21.3 15.9 17.5 17.5 Notes: 1. The present value (PV) of Total Cost = PV of (Investment in committed and new plans + Variable Costs + Invest- ments in T&D – Salvage Value). 2. Variable costs include fuel, variable operations and maintenance, and fixed operations and maintenance costs. 3. The land required for ash disposal is 8 hectares per million metric tons of ash. 4. The discount rate is 12 percent for local pollutants, such as SOx , NOx , and total SPM. 5. No discounts are given for CO2 emissions, ash, and land. 6. The PV of DSM is estimated from the IRP report (Meier 1996). Associated T&D costs are adjusted downward to reflect reduced investments corresponding to lower demand. 7. The PV of T&D rehabilitation cost is estimated independently at one third the generation cost.
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  • 28. 23 Applying the Decisionmaking Process and “Toolkit” The study yielded two key products that are immediately applicable in other situ- ations in which power system planners use data to guide their decisions and minimize the serious impact of power production on the environment. The first is a tested decisionmaking process to help planners develop sound plans for power development. The second key product is a “toolkit” consisting of a series of planning “mod- ules” that can be used flexibly and that provide a variety of choices to users in different states with a wide range of con- cerns. Although the software programs used in the project performed well, alter- native software programs, which experts believe would work equally well, are also available. To help states choose the best planning tools for their situation, the lo- cal and international consultants who worked on the activity produced a prac- tical description of the toolkit in the Manual for Environmental Decisionmaking, recently published by the Energy Sector Management Assistance Programme (ESMAP Report 213/99, June 1999). In disseminating the process and as- sociated tools, planners and consultants will benefit by applying the lessons learned from the experience gained in this study: • Workshops are an important part of the consultative process. They can be used effectively to raise planners’ awareness of the environmental impact of power generation, achieve consensus among participants on project activities, and show planners how to identify the best strategies to mitigate negative impacts in their planning areas. • Workshops are effective vehicles for publicizing findings. They provide opportunities to make relevant agen- cies in target states aware of the decisionmaking process and the ana- lytical tools available to accompany it; to encourage them to adopt similar approaches to achieve their corporate planning, environmental, and regula- tory objectives; and to help them de- sign a program to enable them to use the process and tools successfully. • Sound corporate planning in power system expansion is essential to man- age adverse environmental impacts effectively. • The planning process will work best if reforming states are targeted. Without progress toward power sector reform, the developmental impact of the pro- cess will be significantly hampered. People involved in the planning pro- cess may include representatives from state agencies, state electricity boards, unbundled transmission and generation 3 From Knowledge to Action
  • 29. 24 From Knowledge to Action companies, independent power produc- ers, academic institutions, nongovern- mental organizations (NGOs), and central power agencies, as well as consultants (box 5). Their work is best structured around a set of questions that may be an- swered through the appropriate applica- tion of modeling tools. For example, to explore the environmental impact of re- form, questions could include what the consequences would be of choosing plants on the basis of economic costs and allow- ing environmental costs to be internal- ized? Or, to explore the feasibility of technical options, questions could include how much it would cost to use new clean coal technologies to wash coal, what the potential would be for renewable energy supplies, and what level of environmen- tal benefits could be achieved by using these methods? Once the questions are clear, it is es- sential to determine basic parameters, such as the study boundary (which con- sumers and power plants will be studied), the study period, and assumptions to be used for modeling. Scenarios can then be developed to determine what results would occur in specific sets of circum- stances of interest to planners—for ex- ample, given stated economic policies, energy sector policies, policy instruments, and power sector options. Having defined the questions to be answered, the project parameters, and the scenarios to be explored, specific tools can be applied to carry out the necessary stud- ies. Special studies can also be carried out as needed to research issues outside the scope of the existing “toolkit.” The toolkit consists of a series of linked modules (box 6). Computer modeling en- ables planners to determine what would occur under each of the identified sce- narios. Key modules tested in this study may be used to generate “outputs” in the general areas of demand forecasting, power system planning, environmental analysis, and financial analysis. As results are reached, those partici- pating in the planning process should not only be informed of these results, but also be actively assisted in understanding their importance for decisionmaking and in using them appropriately in the plan- ning area.
  • 30. From Knowledge to Action 25 Box 5. Elements of the Participatory Planning Process • Disseminate a questionnaire to senior officials in the energy and environment sector, as well as to nongovernmental organizations, and to private investors to obtain their views on issues and priorities. • Establish an advisory group to guide the report development process. • Conduct technical workshops for specialists to reach consensus on methodology for projections and modeling. • Conduct seminars for nongovernmental organizations and decisionmakers to exchange information and encourage involvement and interest in the planning process. • Disseminate results on an ongoing basis to state contacts, nongovernmental organiza- tions, and other key officials through designated coordinators and periodic seminars. • Hold workshops for decisionmakers and nongovernmental organizations to dissemi- nate findings, elicit feedback on results, and determine next steps. Box 6. A “Toolkit” for State-Level Energy Planning Tools tested in this project that are available to help other states in India to integrate envi- ronmental concerns in power planning and to assess the impact of future energy produc- tion strategies on the environment include four modeling activities: • Demand forecasting: To examine historic demand and project future demand, taking into account the impact of such variables as growth in income, price reform, demand- side management, and rehabilitation of transmission and distribution networks. • Power system planning: To calculate the schedule of investments in power plants that will meet the forecast demand at the least cost.AS-PLAN software was used to project system production costs and emissions of SO2 , NOx , SPM, ash, and coal requirements, taking into consideration such parameters as reserve margins, reliability constraints, and loss of load probability. • Environmental analysis: To indicate the impact of emissions from power plants on local air quality. An air dispersion model was used to estimate concentration of SO2 , NOx , and SPM in the air. • Financial analysis: To calculate the financial impact of alternative power develop- ment options.Asimple spreadsheet model was constructed fromAS-PLAN and other sources showing such key data as capital and operating costs, revenues, and debt service requirements.
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  • 32. 27 References ASCI Consultancy. 1998. “Environmental Issues in the Power Sector:Andhra Pradesh Case Study.” ASCI Consultancy, Centre for Infrastructure Management, Admin- istrative Staff College of India, Hyderabad. Canadian Energy Research Institute and Tata Energy Research Institute. 1995. “Plan- ning for the Indian Power Sector: Environmental and Developmental Consider- ations.” Canadian Energy Research Institute and Tata Energy Research Institute, Ontario. Environmental Resources Management. 1997. “Renewable Energy in India: A Spe- cial Study.” Environmental Resources Management, London. March. ESMAP (Energy Sector Management Assistance Programme). 1999. India: Environ- mental Issues in the Power Sector. ESMAP report 213/99. Washington, D.C. Meier, Peter. 1996. “Integrated Resource Plan for Andhra Pradesh.” U.S. Agency for International Development (USAID), Office of Energy, Environment, and Tech- nology, Washington, D.C., May. Ministry of Non-Conventional Energy Sources. 1999. Annual Report, 1998–99. Min- istry of Non-Conventional Energy Sources, Government of India, New Delhi. SCADA(Sone Command Area Development Agency). 1998. “Environmental Issues in the Power Sector: A Case Study of Bihar.” SCADA, Bihar, India. Water and Earth Science Associates. 1996. “Review of Coal Ash Utilization.” Water and Earth Science Associates, Ontario.
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  • 34. The World Bank 1818 H Street, N. W. Washington, D.C. 20433, U.S.A. Telephone: (202) 477-1234 Facsimile: (202) 477-6391 Telex: MCI 64145 WORLDBANK MCI 248423 WORLDBANK Internet: www.worldbank.org E-mail: books@worldbank.org