RENEWABLE ENERGY SCENARIO 
IN INDIA 
A SEMINAR REPORT 
SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS 
OF THE DEGREE OF 
MASTER OF TECHNOLOGY 
IN 
POWER SYSTEM ENGINEERING 
BY 
AJAY KUMAR 
130000713001 
UNDER THE SUPERVISION OF 
Asst. Prof. AMIT VERMA 
DEPARTMENT OF ELECTRICAL ENGINEERING 
2013-2015 
FACULTY OF TECHNOLOGY 
UTTARAKHAND TECHNICAL UNIVERSITY 
DEHRADUN 
1
ACKNOWLEDGEMENT 
I avail this opportunity to express my sincere gratitude and profound thanks to Mr. 
Amit Verma, Assistant Professor & Head, Faculty of Technology, Dehradun (UTU-Campus 
), for giving me constant guidance to work on this seminar report as titled “Renewable 
Energy in India”. He has been a guiding source by providing continuous suggestions and 
advice throughout the study period of the seminar. 
With heartfelt gratitude, I acknowledge the cooperation and support rendered to me 
by Mr. Md. Sakib, Asst.Prof., Women Institute of Technology, Dehradun and Mr. Sandeep 
Negi, Asst.Prof., Women Institute of Technology, Dehradun from time to time. 
2
UTTARAKHAND TECHNICAL UNIVERSITY, 
DEHRADUN 
(FACULTY OF TECHNOLOGY) 
UTU-CAMPUS 
2013-2015 
CANDIDATE’S DECLARATION 
I hereby declare that, the seminar report as entitled “Renewable Energy in India” 
submitted for the partial fulfillment of the degree of Master of Technology in Power 
System Engineering from Uttarakhand Technical University, Dehradun, with introductory 
idea and future scope. 
I have not submitted the matter embodied in this dissertation for the award of any other 
3 
degree or diploma. 
Date : 29/11/2014 AJAY KUMAR 
Place: Dehradun Enrolment No.130000713001 
M.Tech (Power System Engineering) 
Faculty of Technology, 
Uttarakhand Technical University, 
Dehradun.
ABSTRACT 
Renewable energy is energy generated from natural resources which are replenished 
such as wind, wave, solar, biomass and tidal power. Governments and companies around the 
world are investing heavily in developing technologies to harness the power of clean 
renewable energy sources because of their potential to produce large quantities of energy 
without generating greenhouse gases which can contribute to climate change. Most of the 
power generation in India is carried out by conventional energy sources, coal and mineral oil-based 
power plants which contribute heavily to greenhouse gases emission. 
Renewable energy sources consist of solar, hydro, wind, geothermal, ocean and 
biomass. The most common advantage of each is that they are renewable and cannot be 
depleted. They are a clean energy, as they don't pollute the air, and they don't contribute to 
global warming effects. Since their sources are natural the cost of operations is reduced and 
they also require less maintenance on their plants. 
4
Chapter 1 
Introduction 
5 
1. General 
Renewable energy is energy generated from natural resources—such as sunlight, 
wind, rain, tides and geothermal heat—which are renewable (naturally replenished). 
Renewable energy technologies range from solar power, wind power, hydroelectricity/micro 
hydro, biomass and bio fuels for transportation. 
Solar energy makes use of the sun's energy. It is advantageous because the systems 
can fit into existing buildings and it does not affect land use. But since the area of the 
collectors is large, more materials are required. Solar radiation is also controlled by 
geography. And it is limited to daytime hours and non-cloudy days. Solar cells convert 
sunlight directly into electricity. Solar cells are often used to power calculators and watches. 
They are made of semiconducting materials similar to those used in computer chips. When 
sunlight is absorbed by these materials, the solar energy knocks electrons loose from their 
atoms, allowing the electrons to flow through the material to produce electricity. This process 
of converting light (photons) to electricity (voltage) is called the photovoltaic (PV) effect. 
Wind turbines use the wind’s kinetic energy to generate electrical energy that can be 
used in homes and businesses. Individual wind turbines can be used to generate electricity on 
a small scale – to power a single home, for example. A large number of wind turbines 
grouped together, sometimes known as a wind farm or wind park, can generate electricity on 
a much larger scale. A wind turbine works like a high-tech version of an old-fashioned 
windmill. The wind blows on the angled blades of the rotor, causing it to spin, converting 
some of the wind’s kinetic energy into mechanical energy. Sensors in the turbine detect how 
strongly the wind is blowing and from which direction. The rotor automatically turns to face 
the wind, and automatically brakes in dangerously high winds to protect the turbine from 
damage. 
Hydroelectric energy uses water to produce power. This is the most reliable of all the 
renewable energy sources. On the down side, it affects ecology and causes downstream 
problems. The decay of vegetation along the riverbed can cause the buildup of methane. 
Methane is a contributing gas to greenhouse effect. Dams can also alter the natural river flow 
and affect wildlife. Colder, oxygen poor water can be released into the river, killing fish.
Geothermal energy is the heat from the Earth. It's clean and sustainable. Resources of 
geothermal energy range from the shallow ground to hot water and hot rock found a few 
miles beneath the Earth's surface, and down even deeper to the extremely high temperatures 
of molten rock called magma. Almost everywhere, the shallow ground or upper 10 feet of the 
Earth's surface maintains a nearly constant temperature between 50° and 60°F (10° and 
16°C). Geothermal heat pumps can tap into this resource to heat and cool buildings. A 
geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and 
a heat exchanger-a system of pipes buried in the shallow ground near the building. In the 
winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air 
delivery system. In the summer, the process is reversed, and the heat pump moves heat from 
the indoor air into the heat exchanger. The heat removed from the indoor air during the 
summer can also be used to provide a free source of hot water. 
Biomass electricity is produced through the energies from wood, agricultural and 
municipal waste. It helps save on landfill waste but transportation can be expensive and 
ecological diversity of land may be affected. In addition, its process needs to be made 
simpler. The use of biomass energy has the potential to greatly reduce our greenhouse gas 
emissions. Biomass generates about the same amount of carbon dioxide as fossil fuels, but 
every time a new plant grows, carbon dioxide is actually removed from the atmosphere. The 
net emission of carbon dioxide will be zero as long as plants continue to be replenished for 
biomass energy purposes 
Renewable energy in India comes under the purview of the Ministry of New and 
Renewable Energy. Ministry of New and Renewable Energy or MNRE is a ministry of 
Government of India. The ministry was established as the Ministry of Non-Conventional 
Energy Sources in 1992. It adopted its current name in October 2006. 
6
Chapter 2 
Classification of energy 
Energy can be classified into several types based on the following criteria: 
1. Primary and Secondary energy 
2. Commercial and Non commercial energy 
3. Renewable and Non-Renewable energy 
2.1 Primary and Secondary Energy 
Primary energy sources are those that are either found or stored in nature. Common 
sources are coal, oil, natural gas, and biomass (such as wood). Other primary energy sources 
available include nuclear energy from radioactive substances, thermal energy stored in earth's 
interior, and potential energy due to earth's gravity. The major primary and secondary energy 
sources are shown in Figure 2.1 Primary energy sources are mostly converted in industrial 
utilities into secondary energy sources; for example coal, oil or gas converted into steam and 
electricity. Primary energy can also be used directly[1]. Some energy sources have non-energy 
uses, for example coal or natural gas can be used as a feedstock in fertilizer plants. 
Figure 2.1: Major Primary and Secondary Sources. [1] 
7
2.2 Commercial Energy and Non Commercial Energy 
2.2.1 Commercial Energy 
The energy sources that are available in the market for a definite price are known 
commercial energy. By far the most important forms of commercial energy are electricity, 
coal and refined petroleum products. Commercial energy forms the basis of industrial, 
agricultural, transport and commercial development in the modern world. In the 
industrialized countries, commercialized fuels are predominant source not only for economic 
production, but also for many household tasks of general population. Examples: Electricity, 
lignite, coal, oil, natural gas etc 
8 
2.2.2 Non-Commercial Energy 
The energy sources that are not available in the commercial market for a price are 
classified as non-commercial energy. Non-commercial energy sources include fuels such as 
firewood, cattle dung and agricultural wastes, which are traditionally gathered, and not 
bought at a price used especially in rural households. These are also called traditional fuels. 
Non-commercial energy is often ignored in energy accounting. Example: Firewood, agro 
waste in rural areas; solar energy for water heating, electricity generation, for drying grain, 
fish and fruits; animal power for transport, threshing, lifting water for irrigation, crushing 
sugarcane; wind energy for lifting water and electricity generation 
Figure 2.2: Renewable and Non-Renewable Energy.[3]
2.3 Renewable and Non-Renewable Energy 
Renewable energy is energy obtained from sources that are essentially inexhaustible. 
Examples of renewable resources include wind power, solar power, geothermal energy, tidal 
power and hydroelectric power (See Figure 2.2). The most important feature of renewable 
energy is that it can be harnessed without the release of harmful pollutants [2]. Non-renewable 
energy is the conventional fossil fuels such as coal, oil and gas, which are likely to 
9 
deplete with time.
Chapter 3 
Energy scenario 
3.1 Overall Consumption and Production 
3.1.1Electrical Power Consumption 
The energy consumption in India is the fourth biggest after China, USA and Russia. 
The total primary energy consumption from crude oil (29.45%), natural gas (7.7%), coal 
(54.5%), nuclear energy (1.26%), hydro electricity (5.0%), wind power, biomass electricity 
and solar power is 595 Mtoe in the year 2013. In the year 2013, India's net imports are nearly 
144.3 million tons of crude oil, 16 Mtoe of LNG and 95 Mtoe coal totalling to 255.3 Mtoe of 
primary energy which is equal to 42.9% of total primary energy consumption. About 70% of 
India's electricity generation capacity is from fossil fuels, with coal accounting for 40% of 
India's total energy consumption followed by crude oil and natural gas at 28% and 6% 
respectively. India is largely dependent on fossil fuel imports to meet its energy demands by 
2030, India's dependence on energy imports is expected to exceed 53% of the country's total 
energy consumption [3]. In 2009-10, the country imported 159.26 million tonnes of crude oil 
which amounts to 80% of its domestic crude oil consumption and 31% of the country's total 
imports are oil imports. 
10 
Sector wise energy consumption 
Sector Percentage power consumption 
Industry 49% 
Transport 22% 
Residential 10% 
Agriculture 5% 
Others 14% 
Table 3.1: Sector wise energy consumption in India. [2]
11 
3.1.2 Electrical Power Generation 
The electricity sector in India had an installed capacity of 254.049 GW as of end 
September 2014. India became the world's third largest producer of electricity in the year 
2013 with 4.8% global share in electricity generation surpassing Japan and Russia. Captive 
power plants have an additional 39.375 GW capacity. Non Renewable Power Plants 
constitute 87.55% of the installed capacity, and Renewable Power Plants constitute the 
remaining 12.45% of total installed Capacity. India generated around 967 TWh (967,150.32 
GWh) of electricity (excluding electricity generated from renewable and captive power 
plants) during the 2013–14 fiscal [4]. Total installed Power generation Capacity (June 2014) 
is shown in Table. 
Source Total Capacity (MW) Percentage 
Coal 148,478.39 59.51 
Hydroelectricity 40,730.09 16.33 
Renewable energy source 31,692.14 12.70 
Natural Gas 22,607.95 9.06 
Nuclear 4780 1.92 
Oil 1,199.75 0.48 
Total 249,488.32 100 
Table 3.2: Total installed Power generation Capacity (June 2014).[2]
Sector-wise All India installed capacity 
There are three sector in which electrical energy is generated, sector wise power 
12 
generation in shown in table. 
Sector Total Capacity (MW) Percentage 
State Sector 93,540.7 37.49 
Central Sector 68,324.63 27.38 
Private Sector 87,622.99 35.12 
Total 249,488.32 100 
Table 3.3: Sector-wise All India installed capacity.[4] 
3.2 Renewable energy scenario in India 
Renewable energy in India comes under the purview of the Ministry of New and 
Renewable Energy. Ministry of New and Renewable Energy or MNRE is a ministry of 
Government of India. The ministry was established as the Ministry of Non-Conventional 
Energy Sources in 1992. It adopted its current name in October 2006.. 
According to MNRE survey Gujarat contributed of 39% in total installed capacity which is 
2208MW.Second place consist Rajasthan by giving 666.8 MW which is 30% of total 
installed capacity [5].UP Takes 8 position in this list according to MNRE with 17.4 MW 
installed capacity which is only 0.8% of total installation. 
SOURSE INSTALLED (M.W) PERCENTAGE 
Wind 21264 67 
Small Hydro 3803.65 13 
Biomass Power 1471.78 4 
Solar Power 2627 8.5 
Bagasse Cogeneration 2512 7.5 
Table 3.4: Grid connected installed capacity of RE source. [4] 
.
Chapter 4 
Solar Energy 
13 
4.1 Introduction 
Solar energy is radiant light and heat from the sun harnessed using a range of ever-evolving 
technologies such as solar heating, solar photovoltaics, solar thermal energy, solar 
architecture and artificial photosynthesis. It is an important source of renewable energy and 
its technologies are broadly characterized as either passive solar or active solar depending on 
the way they capture and distribute solar energy or convert it into solar power. Active solar 
techniques include the use of photovoltaic systems, concentrated solar power and solar water 
heating to harness the energy. Passive solar techniques include orienting a building to the 
Sun, selecting materials with favorable thermal mass or light dispersing properties, and 
designing spaces that naturally circulate air. 
4.2 Energy from the Sun 
The Earth receives 174 petawatts (PW) of incoming solar radiation (insolation) at the 
upper atmosphere. Approximately 30% is reflected back to space while the rest is absorbed 
by clouds, oceans and land masses. The spectrum of solar light at the Earth's surface is 
mostly spread across the visible and near-infrared ranges with a small part in the near-ultraviolet. 
Earth's land surface, oceans and atmosphere absorb solar radiation, and this raises 
their temperature. Warm air containing evaporated water from the oceans rises, causing 
atmospheric circulation or convection. When the air reaches a high altitude, where the 
temperature is low, water vapor condenses into clouds, which rain onto the Earth's surface, 
completing the water cycle[6]. The latent heat of water condensation amplifies convection, 
producing atmospheric phenomena such as wind, cyclones and anti-cyclones. Sunlight 
absorbed by the oceans and land masses keeps the surface at an average temperature of 
14 °C. By photosynthesis green plants convert solar energy into chemical energy, which 
produces food, wood and the biomass from which fossil fuels are derived.
4.3 Solar Photovoltaic Power System 
Photovoltaic Systems make use of the ‘photovoltaic effect’ (photo=light and 
voltaic=electricity), the basic process discovered by Edmund Becquerel, a French physicist in 
1839. He discovered the PV effect while experimenting with an electrolytic cell made up of 
two metal electrodes; finding that certain materials would produce small amounts of electric 
current when exposed to light. Sunlight is composed of photons, or ‘packets’ of energy. 
These photons have various amounts of energy corresponding to different wavelengths of 
light [7]. When photons strike a PV cell, they may be reflected or absorbed, or they may pass 
right through the surface (causing heat only). When a photon is absorbed, the energy of the 
photon is transferred to an electron in an atom of the cell, a semiconductor based material 
(such as silicon). With its newfound energy, the electron is able to escape from its normal 
position associated with that atom, to become part of the current in an electrical circuit. By 
leaving this position, the electron leaves a hole behind. While the electron is negatively 
charged, the hole is recognized as a positive charge carrier and contributes to current. The PV 
cell has a built-in electric field, providing the voltage needed to drive the current through an 
external load, such as a light bulb. 
Depending on the functional and operational requirements of the system, the specific 
components required may include major components such as a DC-AC power inverter, 
battery bank, system and battery controller, auxiliary energy sources and sometimes the 
specified electrical load (appliances). Figure show a basic diagram of a photovoltaic system 
and the relationship of individual components. 
Figure 4.1: a photovoltaic system and the relationship of individual 
components.[5] 
14
15 
4.4 Solar power in India 
With about 300 clear, sunny days in a year, India's theoretical solar power reception, 
on only its land area, is about 5000 Petawatt-hours per year (PWh/yr) (i.e. 5,000 trillion 
kWh/yr or about 600,000 GW). The daily average solar energy incident over India varies 
from 4 to 7 kWh/m2 with about 1,500–2,000 sunshine hours per year (depending upon 
location), which is far more than current total energy consumption. For example, assuming 
the efficiency of PV modules were as low as 10%, this would still be a thousand times greater 
than the domestic electricity demand projected for 2015.The amount of solar energy 
produced in India in 2007 was less than 1% of the total energy demand [8]. The grid-connected 
solar power as of December 2010 was merely 10 MW. Government-funded solar 
energy in India only accounted for approximately 6.4 MW-yr of power as of 2005. However, 
India is ranked number one in terms of solar energy production per watt installed, with an 
insolation of 1,700 to 1,900 kilowatt hours per kilowatt peak (kWh/KWp) 25.1 MW was 
added in 2010 and 468.3 MW in 2011 By January 2014 the 
Installed grid connected solar power had increased to 2,208.36 MW, and India 
expects to install an additional 10,000 MW by 2017, and a total of 20,000 MW by 2022.State 
wise solar installed capacity is shown in figure. 
Figure4.2: solar capacity in states.
Chapter 5 
Wind Energy 
16 
5.1 Introduction 
Wind power or wind energy is the energy extracted from wind using wind turbines to 
produce electrical power, windmills for mechanical power, wind pumps for water pumping, 
or sails to propel ships. Large wind farms consist of hundreds of individual wind turbines 
which are connected to the electric power transmission network. Wind power or wind energy 
describes the process by which the wind is used to generate mechanical power or electricity. 
Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical 
power can be used for specific tasks (such as grinding grain or pumping water), or can be 
converted into electricity by a generator. Energy of wind can be economically used to generat 
electrical energy Wind can also be used to provide mechanical power such as for water 
pumping. In India generally wind speeds obtainable are in the lower ranges. Therefore, 
attempts are on the development of low cost, low speed mills for irrigation of small and 
marginal farms for providing drinking water in rural area. The developments are being 
mainly concentrated on water pumping wind mill suitable for operation in a wind speed range 
of 8 to 36 kmph. In India high wind speeds are obtainable in coastal areas of Saurashtra, 
western Rajasthan and some parts of central India. 
5.2 Types of Wind Turbines 
Wind turbines are broadly classified into two categories. When the axis of rotation 
parallel to the air stream (i.e., horizontal), the turbine is said to be a Horizontal Axis Wind 
Turbine, and when it is perpendicular to the air stream (i.e., vertical), it is said to be a Vertical 
Axis Wind Turbine. 
5.2.1 Horizontal-axis wind turbines (HAWT) 
Horizontal-axis wind turbines (HAWT) have the main rotor shaft and electrical 
generator at the top of a tower, and may be pointed into or out of the wind [9]. Small turbines 
are pointed by a simple wind vane, while large turbines generally use a wind sensor coupled 
with a servo motor. Most have a gearbox, which turns the slow rotation of the blades into a 
quicker rotation that is more suitable to drive an electrical generator. The basic parts of a
horizontal axis wind turbine (HAWT) are foundation, tower, nacelle, Generator, Rotor Blades 
is shown in figure. 
Figure 5.1: Horizontal-axis wind turbines. [10] 
17 
5.2.2Vertical-axis wind turbines 
Vertical-axis wind turbines (or VAWTs) have the main rotor shaft arranged vertically. 
One advantage of this arrangement is that the turbine does not need to be pointed into the 
wind to be effective, which is an advantage on a site where the wind direction is highly 
variable. It is also an advantage when the turbine is integrated into a building because it is 
inherently less steerable [10]. Also, the generator and gearbox can be placed near the ground, 
using a direct drive from the rotor assembly to the ground-based gearbox, improving 
accessibility for maintenance. The basic parts of a Vertical axis wind turbine (VAWT) are 
shown in figure. 
Figure5.2: Vertical axis wind turbine [10].
18 
5.3 Wind Power in India 
The development of wind power in India began in the 1990s, and has significantly 
increased in the last few years [11]. Although a relative newcomer to the wind industry 
compared with Denmark or the United States, India has the fifth largest installed wind power 
capacity in the world. In 2009-10 India's growth rate was highest among the other top four 
countries. Wind power accounts for 6% of India's total installed power capacity, and it 
generates 1.6% of the country's power.In its 12th Five Year Plan (2012-2017), the Indian 
Government has set a target of adding 18.5 GW of renewable energy sources to the 
generation mix out of which 11 GW is Wind Energy. 
5.3.1State-level Wind Power 
There is a growing number of wind energy installations in states across India. As of 
31 March 2014 the installed capacity of wind power in India was 21264 MW. Wind energy 
generation in states across India is shown in table. 
State Capacity(M.W) 
Tamil Nadu 7253 
Gujarat 3414 
Maharashtra 2976 
Rajasthan 2820 
Karnataka 2409 
Andhra Pradesh 753 
Madhya Pradesh 439 
Kerala 55 
Table 5.1: State-level wind power in India. [9]
Chapter 6 
Tidal Energy 
19 
6.1 Introduction 
The tides in the sea are the result of the universal gravitational effect of heavenly 
bodies like sun and moon on the earth. Due to fluidity of water mass, the effect of this force 
becomes apparent in the motion of water. It shows a periodic rise and fall in levels. It is in 
synthesis with the daily cycle of rising and setting of sun and moon. This periodic rise and 
fall of the water level of sea is called tide. These tides can be used to produce electrical 
energy. It is called, “Tidal Energy”. When the water is above the mean sea level, it is called, 
“Flood Tide”. When the level is below the mean sea level, it is called, “Ebb Tide”. To 
harness the tides, a dam is built across the mouth of the bay. It will have large gates in it. It 
has low head hydraulic reversible turbines. A tidal basin is formed. It gets separated from the 
sea by dam. The difference in water level is obtained between the basin and sea. By using 
reversible water turbines, turbines can be run continuously, both during high tide and low 
tide. The turbine is coupled to generator. Potential energy of the water stored in the basin as 
well as energy during high tides used to drive turbine. It is coupled to generator to generate 
electrical energy. 
6.2 Types of Tides 
Tides are the rise and fall of sea levels caused by the combined effects of the 
gravitational forces exerted by the Moon and the Sun and the rotation of the Earth. 
6.2.1 Spring Tide 
When the moon is full or new, the gravitational pull of the moon and sun are 
combined. At these times, the high tides are very high and the low tides are very low. This is 
known as a spring high tide. Spring tides are especially strong tides (they do not have 
anything to do with the season Spring). They occur when the Earth, the Sun, and the Moon 
are in a line [12]. The gravitational forces of the Moon and the Sun both contribute to the 
tides. Spring tides occur during the full moon and the new moon. Spring tide is shown in 
figure.
Figure6.1: Spring tide .[12] 
20 
6.2.2 Neap Tide 
During the moon's quarter phases the sun and moon work at right angles, causing the 
bulges to cancel each other. The result is a smaller difference between high and low tides and 
is known as a neap tide. Neap tides are especially weak tides. They occur when the 
gravitational forces of the Moon and the Sun are perpendicular to one another (with respect to 
the Earth). Neap tides occur during quarter moons. Neap tide is shown in figure. 
Figure6.2: Neap Tide .[12]
21 
6.3 Tidal Energy Conversion 
The generation of electricity using tidal power is basically the transformation of tidal 
power found in tidal motion of water in seas and oceans into electrical energy. This is done 
using a very basic idea involving the use of a barrage or small dam built at the entrance of a 
bay where tides are known to reach very high levels of variation [13]. This barrage will trap 
tidal water behind it creating a difference in water level, which will in turn create potential 
energy. This potential energy will then be used in creating kinetic energy as doors in the 
barrage are opened and the water rush from the high level to the lower level. This kinetic 
energy will be converted into rotational kinetic energy that will rotate turbines giving 
electrical energy. Fig shows the process in very simple terms. 
Figure 6.3: A diagram showing transformation of tidal energy to electric 
energy.
6.4 Examples of Tidal Power Stations Worldwide 
1. The most major tidal power station in operation today is a 240-megawatt at the 
mouth of the La Rance river estuary on the northern coast of France (a large coal or 
nuclear power plant generates about 1,000 MW of electricity). The La Rance generating 
station has been in operation since 1966 and has been a very reliable source of electricity 
for France. La Rance was supposed to be one of many tidal power plants in France, until 
their nuclear program was greatly expanded in the late 1960's. 
2. 254 MW Sihwa Lake Tidal Power Plant in South Korea is the largest tidal power 
installation in the world. Construction was completed in 2011. 
3. The Indian state of Gujarat is planning to host South Asia's first commercial-scale 
tidal power station. The company Atlantis Resources planned to install a 50MW tidal farm 
in the Gulf of Kutch on India's west coast, with construction starting early in 2012 
22
Conclusion 
Renewable energy has the potential to generate significant amounts of electricity at 
certain sites around the world. The negative environmental impacts of renewable energy are 
probably much smaller than those of other sources of electricity. Renewable energy has the 
potential to create many opportunities at all levels, especially in rural areas. 
1. Innovative financing 
2. Mainstreaming of renewable is very essential 
3. Energy security, economic growth and environment protection are the national energy 
policy drivers of any country of the world. 
4. There is a need to boost the efforts for further development and promotion of renewable 
energy sources. 
5. Promoting renewable energy technologies as a way to address concerns about energy 
security and economic growth. 
6. Specific action included promoting deployment, innovation and basic research in 
renewable energy Technologies. 
India’s quest for energy security and sustainable development rests a great deal on the 
ability to tap energy from alternate sources or the renewable sources. 
23
References 
[1 ] Overview of Renewable Energy Potential of India, Peter Meissen, President, Global 
Energy Network Institute (GENI ) available at http://www.geni.org. 
[2] Planning Commission, Govt. of India—September 1995 & September 1996 
24 
Projections to 2020–2021. 
[3] National Electricity Plan Vol 1 (Generation) Central Electricity Authority, Ministry of 
Power, GOI] 
[4] Central Electricity Authority, Ministry of Power, Government of India. June 2014. 
Retrieved 1 August 2014. 
[5] Rai, G.D., Non-Conventional energy sources, Khanna Publishers, New Delhi, 2nd 
Edition, 2002. 
[6] The Solar Energy Book-Once More." Mother Earth News. 
[7] Solar: photovoltaic: Lighting Up The World retrieved 19 May 2009. 
[8] Annual Report, of Ministry of Non-Conventional Energy Sources, Govt. of India, New 
Delhi. 
[9] "Technical Specs of Common Wind Turbine Models". Aweo.org. 
[10] Jha, Ph.D., A.R. (2010). Wind turbine technology. Boca Raton, FL: CRC Press. 
[11] "Indian Wind Energy and Economy". Indianwindpower.com. 
[12] Developments in Tidal Energy: Proceedings of the Third Conference on Tidal Power, 
Institution Of Civil Engineers (Contributor). 
[13] Ocean, Tidal, and Wave Energy: Power from the Sea (Energy Revolution) by Lynne.

RENEWABLE ENERGY SCENARIO IN INDIA

  • 1.
    RENEWABLE ENERGY SCENARIO IN INDIA A SEMINAR REPORT SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS OF THE DEGREE OF MASTER OF TECHNOLOGY IN POWER SYSTEM ENGINEERING BY AJAY KUMAR 130000713001 UNDER THE SUPERVISION OF Asst. Prof. AMIT VERMA DEPARTMENT OF ELECTRICAL ENGINEERING 2013-2015 FACULTY OF TECHNOLOGY UTTARAKHAND TECHNICAL UNIVERSITY DEHRADUN 1
  • 2.
    ACKNOWLEDGEMENT I availthis opportunity to express my sincere gratitude and profound thanks to Mr. Amit Verma, Assistant Professor & Head, Faculty of Technology, Dehradun (UTU-Campus ), for giving me constant guidance to work on this seminar report as titled “Renewable Energy in India”. He has been a guiding source by providing continuous suggestions and advice throughout the study period of the seminar. With heartfelt gratitude, I acknowledge the cooperation and support rendered to me by Mr. Md. Sakib, Asst.Prof., Women Institute of Technology, Dehradun and Mr. Sandeep Negi, Asst.Prof., Women Institute of Technology, Dehradun from time to time. 2
  • 3.
    UTTARAKHAND TECHNICAL UNIVERSITY, DEHRADUN (FACULTY OF TECHNOLOGY) UTU-CAMPUS 2013-2015 CANDIDATE’S DECLARATION I hereby declare that, the seminar report as entitled “Renewable Energy in India” submitted for the partial fulfillment of the degree of Master of Technology in Power System Engineering from Uttarakhand Technical University, Dehradun, with introductory idea and future scope. I have not submitted the matter embodied in this dissertation for the award of any other 3 degree or diploma. Date : 29/11/2014 AJAY KUMAR Place: Dehradun Enrolment No.130000713001 M.Tech (Power System Engineering) Faculty of Technology, Uttarakhand Technical University, Dehradun.
  • 4.
    ABSTRACT Renewable energyis energy generated from natural resources which are replenished such as wind, wave, solar, biomass and tidal power. Governments and companies around the world are investing heavily in developing technologies to harness the power of clean renewable energy sources because of their potential to produce large quantities of energy without generating greenhouse gases which can contribute to climate change. Most of the power generation in India is carried out by conventional energy sources, coal and mineral oil-based power plants which contribute heavily to greenhouse gases emission. Renewable energy sources consist of solar, hydro, wind, geothermal, ocean and biomass. The most common advantage of each is that they are renewable and cannot be depleted. They are a clean energy, as they don't pollute the air, and they don't contribute to global warming effects. Since their sources are natural the cost of operations is reduced and they also require less maintenance on their plants. 4
  • 5.
    Chapter 1 Introduction 5 1. General Renewable energy is energy generated from natural resources—such as sunlight, wind, rain, tides and geothermal heat—which are renewable (naturally replenished). Renewable energy technologies range from solar power, wind power, hydroelectricity/micro hydro, biomass and bio fuels for transportation. Solar energy makes use of the sun's energy. It is advantageous because the systems can fit into existing buildings and it does not affect land use. But since the area of the collectors is large, more materials are required. Solar radiation is also controlled by geography. And it is limited to daytime hours and non-cloudy days. Solar cells convert sunlight directly into electricity. Solar cells are often used to power calculators and watches. They are made of semiconducting materials similar to those used in computer chips. When sunlight is absorbed by these materials, the solar energy knocks electrons loose from their atoms, allowing the electrons to flow through the material to produce electricity. This process of converting light (photons) to electricity (voltage) is called the photovoltaic (PV) effect. Wind turbines use the wind’s kinetic energy to generate electrical energy that can be used in homes and businesses. Individual wind turbines can be used to generate electricity on a small scale – to power a single home, for example. A large number of wind turbines grouped together, sometimes known as a wind farm or wind park, can generate electricity on a much larger scale. A wind turbine works like a high-tech version of an old-fashioned windmill. The wind blows on the angled blades of the rotor, causing it to spin, converting some of the wind’s kinetic energy into mechanical energy. Sensors in the turbine detect how strongly the wind is blowing and from which direction. The rotor automatically turns to face the wind, and automatically brakes in dangerously high winds to protect the turbine from damage. Hydroelectric energy uses water to produce power. This is the most reliable of all the renewable energy sources. On the down side, it affects ecology and causes downstream problems. The decay of vegetation along the riverbed can cause the buildup of methane. Methane is a contributing gas to greenhouse effect. Dams can also alter the natural river flow and affect wildlife. Colder, oxygen poor water can be released into the river, killing fish.
  • 6.
    Geothermal energy isthe heat from the Earth. It's clean and sustainable. Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma. Almost everywhere, the shallow ground or upper 10 feet of the Earth's surface maintains a nearly constant temperature between 50° and 60°F (10° and 16°C). Geothermal heat pumps can tap into this resource to heat and cool buildings. A geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building. In the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system. In the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger. The heat removed from the indoor air during the summer can also be used to provide a free source of hot water. Biomass electricity is produced through the energies from wood, agricultural and municipal waste. It helps save on landfill waste but transportation can be expensive and ecological diversity of land may be affected. In addition, its process needs to be made simpler. The use of biomass energy has the potential to greatly reduce our greenhouse gas emissions. Biomass generates about the same amount of carbon dioxide as fossil fuels, but every time a new plant grows, carbon dioxide is actually removed from the atmosphere. The net emission of carbon dioxide will be zero as long as plants continue to be replenished for biomass energy purposes Renewable energy in India comes under the purview of the Ministry of New and Renewable Energy. Ministry of New and Renewable Energy or MNRE is a ministry of Government of India. The ministry was established as the Ministry of Non-Conventional Energy Sources in 1992. It adopted its current name in October 2006. 6
  • 7.
    Chapter 2 Classificationof energy Energy can be classified into several types based on the following criteria: 1. Primary and Secondary energy 2. Commercial and Non commercial energy 3. Renewable and Non-Renewable energy 2.1 Primary and Secondary Energy Primary energy sources are those that are either found or stored in nature. Common sources are coal, oil, natural gas, and biomass (such as wood). Other primary energy sources available include nuclear energy from radioactive substances, thermal energy stored in earth's interior, and potential energy due to earth's gravity. The major primary and secondary energy sources are shown in Figure 2.1 Primary energy sources are mostly converted in industrial utilities into secondary energy sources; for example coal, oil or gas converted into steam and electricity. Primary energy can also be used directly[1]. Some energy sources have non-energy uses, for example coal or natural gas can be used as a feedstock in fertilizer plants. Figure 2.1: Major Primary and Secondary Sources. [1] 7
  • 8.
    2.2 Commercial Energyand Non Commercial Energy 2.2.1 Commercial Energy The energy sources that are available in the market for a definite price are known commercial energy. By far the most important forms of commercial energy are electricity, coal and refined petroleum products. Commercial energy forms the basis of industrial, agricultural, transport and commercial development in the modern world. In the industrialized countries, commercialized fuels are predominant source not only for economic production, but also for many household tasks of general population. Examples: Electricity, lignite, coal, oil, natural gas etc 8 2.2.2 Non-Commercial Energy The energy sources that are not available in the commercial market for a price are classified as non-commercial energy. Non-commercial energy sources include fuels such as firewood, cattle dung and agricultural wastes, which are traditionally gathered, and not bought at a price used especially in rural households. These are also called traditional fuels. Non-commercial energy is often ignored in energy accounting. Example: Firewood, agro waste in rural areas; solar energy for water heating, electricity generation, for drying grain, fish and fruits; animal power for transport, threshing, lifting water for irrigation, crushing sugarcane; wind energy for lifting water and electricity generation Figure 2.2: Renewable and Non-Renewable Energy.[3]
  • 9.
    2.3 Renewable andNon-Renewable Energy Renewable energy is energy obtained from sources that are essentially inexhaustible. Examples of renewable resources include wind power, solar power, geothermal energy, tidal power and hydroelectric power (See Figure 2.2). The most important feature of renewable energy is that it can be harnessed without the release of harmful pollutants [2]. Non-renewable energy is the conventional fossil fuels such as coal, oil and gas, which are likely to 9 deplete with time.
  • 10.
    Chapter 3 Energyscenario 3.1 Overall Consumption and Production 3.1.1Electrical Power Consumption The energy consumption in India is the fourth biggest after China, USA and Russia. The total primary energy consumption from crude oil (29.45%), natural gas (7.7%), coal (54.5%), nuclear energy (1.26%), hydro electricity (5.0%), wind power, biomass electricity and solar power is 595 Mtoe in the year 2013. In the year 2013, India's net imports are nearly 144.3 million tons of crude oil, 16 Mtoe of LNG and 95 Mtoe coal totalling to 255.3 Mtoe of primary energy which is equal to 42.9% of total primary energy consumption. About 70% of India's electricity generation capacity is from fossil fuels, with coal accounting for 40% of India's total energy consumption followed by crude oil and natural gas at 28% and 6% respectively. India is largely dependent on fossil fuel imports to meet its energy demands by 2030, India's dependence on energy imports is expected to exceed 53% of the country's total energy consumption [3]. In 2009-10, the country imported 159.26 million tonnes of crude oil which amounts to 80% of its domestic crude oil consumption and 31% of the country's total imports are oil imports. 10 Sector wise energy consumption Sector Percentage power consumption Industry 49% Transport 22% Residential 10% Agriculture 5% Others 14% Table 3.1: Sector wise energy consumption in India. [2]
  • 11.
    11 3.1.2 ElectricalPower Generation The electricity sector in India had an installed capacity of 254.049 GW as of end September 2014. India became the world's third largest producer of electricity in the year 2013 with 4.8% global share in electricity generation surpassing Japan and Russia. Captive power plants have an additional 39.375 GW capacity. Non Renewable Power Plants constitute 87.55% of the installed capacity, and Renewable Power Plants constitute the remaining 12.45% of total installed Capacity. India generated around 967 TWh (967,150.32 GWh) of electricity (excluding electricity generated from renewable and captive power plants) during the 2013–14 fiscal [4]. Total installed Power generation Capacity (June 2014) is shown in Table. Source Total Capacity (MW) Percentage Coal 148,478.39 59.51 Hydroelectricity 40,730.09 16.33 Renewable energy source 31,692.14 12.70 Natural Gas 22,607.95 9.06 Nuclear 4780 1.92 Oil 1,199.75 0.48 Total 249,488.32 100 Table 3.2: Total installed Power generation Capacity (June 2014).[2]
  • 12.
    Sector-wise All Indiainstalled capacity There are three sector in which electrical energy is generated, sector wise power 12 generation in shown in table. Sector Total Capacity (MW) Percentage State Sector 93,540.7 37.49 Central Sector 68,324.63 27.38 Private Sector 87,622.99 35.12 Total 249,488.32 100 Table 3.3: Sector-wise All India installed capacity.[4] 3.2 Renewable energy scenario in India Renewable energy in India comes under the purview of the Ministry of New and Renewable Energy. Ministry of New and Renewable Energy or MNRE is a ministry of Government of India. The ministry was established as the Ministry of Non-Conventional Energy Sources in 1992. It adopted its current name in October 2006.. According to MNRE survey Gujarat contributed of 39% in total installed capacity which is 2208MW.Second place consist Rajasthan by giving 666.8 MW which is 30% of total installed capacity [5].UP Takes 8 position in this list according to MNRE with 17.4 MW installed capacity which is only 0.8% of total installation. SOURSE INSTALLED (M.W) PERCENTAGE Wind 21264 67 Small Hydro 3803.65 13 Biomass Power 1471.78 4 Solar Power 2627 8.5 Bagasse Cogeneration 2512 7.5 Table 3.4: Grid connected installed capacity of RE source. [4] .
  • 13.
    Chapter 4 SolarEnergy 13 4.1 Introduction Solar energy is radiant light and heat from the sun harnessed using a range of ever-evolving technologies such as solar heating, solar photovoltaics, solar thermal energy, solar architecture and artificial photosynthesis. It is an important source of renewable energy and its technologies are broadly characterized as either passive solar or active solar depending on the way they capture and distribute solar energy or convert it into solar power. Active solar techniques include the use of photovoltaic systems, concentrated solar power and solar water heating to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air. 4.2 Energy from the Sun The Earth receives 174 petawatts (PW) of incoming solar radiation (insolation) at the upper atmosphere. Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses. The spectrum of solar light at the Earth's surface is mostly spread across the visible and near-infrared ranges with a small part in the near-ultraviolet. Earth's land surface, oceans and atmosphere absorb solar radiation, and this raises their temperature. Warm air containing evaporated water from the oceans rises, causing atmospheric circulation or convection. When the air reaches a high altitude, where the temperature is low, water vapor condenses into clouds, which rain onto the Earth's surface, completing the water cycle[6]. The latent heat of water condensation amplifies convection, producing atmospheric phenomena such as wind, cyclones and anti-cyclones. Sunlight absorbed by the oceans and land masses keeps the surface at an average temperature of 14 °C. By photosynthesis green plants convert solar energy into chemical energy, which produces food, wood and the biomass from which fossil fuels are derived.
  • 14.
    4.3 Solar PhotovoltaicPower System Photovoltaic Systems make use of the ‘photovoltaic effect’ (photo=light and voltaic=electricity), the basic process discovered by Edmund Becquerel, a French physicist in 1839. He discovered the PV effect while experimenting with an electrolytic cell made up of two metal electrodes; finding that certain materials would produce small amounts of electric current when exposed to light. Sunlight is composed of photons, or ‘packets’ of energy. These photons have various amounts of energy corresponding to different wavelengths of light [7]. When photons strike a PV cell, they may be reflected or absorbed, or they may pass right through the surface (causing heat only). When a photon is absorbed, the energy of the photon is transferred to an electron in an atom of the cell, a semiconductor based material (such as silicon). With its newfound energy, the electron is able to escape from its normal position associated with that atom, to become part of the current in an electrical circuit. By leaving this position, the electron leaves a hole behind. While the electron is negatively charged, the hole is recognized as a positive charge carrier and contributes to current. The PV cell has a built-in electric field, providing the voltage needed to drive the current through an external load, such as a light bulb. Depending on the functional and operational requirements of the system, the specific components required may include major components such as a DC-AC power inverter, battery bank, system and battery controller, auxiliary energy sources and sometimes the specified electrical load (appliances). Figure show a basic diagram of a photovoltaic system and the relationship of individual components. Figure 4.1: a photovoltaic system and the relationship of individual components.[5] 14
  • 15.
    15 4.4 Solarpower in India With about 300 clear, sunny days in a year, India's theoretical solar power reception, on only its land area, is about 5000 Petawatt-hours per year (PWh/yr) (i.e. 5,000 trillion kWh/yr or about 600,000 GW). The daily average solar energy incident over India varies from 4 to 7 kWh/m2 with about 1,500–2,000 sunshine hours per year (depending upon location), which is far more than current total energy consumption. For example, assuming the efficiency of PV modules were as low as 10%, this would still be a thousand times greater than the domestic electricity demand projected for 2015.The amount of solar energy produced in India in 2007 was less than 1% of the total energy demand [8]. The grid-connected solar power as of December 2010 was merely 10 MW. Government-funded solar energy in India only accounted for approximately 6.4 MW-yr of power as of 2005. However, India is ranked number one in terms of solar energy production per watt installed, with an insolation of 1,700 to 1,900 kilowatt hours per kilowatt peak (kWh/KWp) 25.1 MW was added in 2010 and 468.3 MW in 2011 By January 2014 the Installed grid connected solar power had increased to 2,208.36 MW, and India expects to install an additional 10,000 MW by 2017, and a total of 20,000 MW by 2022.State wise solar installed capacity is shown in figure. Figure4.2: solar capacity in states.
  • 16.
    Chapter 5 WindEnergy 16 5.1 Introduction Wind power or wind energy is the energy extracted from wind using wind turbines to produce electrical power, windmills for mechanical power, wind pumps for water pumping, or sails to propel ships. Large wind farms consist of hundreds of individual wind turbines which are connected to the electric power transmission network. Wind power or wind energy describes the process by which the wind is used to generate mechanical power or electricity. Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for specific tasks (such as grinding grain or pumping water), or can be converted into electricity by a generator. Energy of wind can be economically used to generat electrical energy Wind can also be used to provide mechanical power such as for water pumping. In India generally wind speeds obtainable are in the lower ranges. Therefore, attempts are on the development of low cost, low speed mills for irrigation of small and marginal farms for providing drinking water in rural area. The developments are being mainly concentrated on water pumping wind mill suitable for operation in a wind speed range of 8 to 36 kmph. In India high wind speeds are obtainable in coastal areas of Saurashtra, western Rajasthan and some parts of central India. 5.2 Types of Wind Turbines Wind turbines are broadly classified into two categories. When the axis of rotation parallel to the air stream (i.e., horizontal), the turbine is said to be a Horizontal Axis Wind Turbine, and when it is perpendicular to the air stream (i.e., vertical), it is said to be a Vertical Axis Wind Turbine. 5.2.1 Horizontal-axis wind turbines (HAWT) Horizontal-axis wind turbines (HAWT) have the main rotor shaft and electrical generator at the top of a tower, and may be pointed into or out of the wind [9]. Small turbines are pointed by a simple wind vane, while large turbines generally use a wind sensor coupled with a servo motor. Most have a gearbox, which turns the slow rotation of the blades into a quicker rotation that is more suitable to drive an electrical generator. The basic parts of a
  • 17.
    horizontal axis windturbine (HAWT) are foundation, tower, nacelle, Generator, Rotor Blades is shown in figure. Figure 5.1: Horizontal-axis wind turbines. [10] 17 5.2.2Vertical-axis wind turbines Vertical-axis wind turbines (or VAWTs) have the main rotor shaft arranged vertically. One advantage of this arrangement is that the turbine does not need to be pointed into the wind to be effective, which is an advantage on a site where the wind direction is highly variable. It is also an advantage when the turbine is integrated into a building because it is inherently less steerable [10]. Also, the generator and gearbox can be placed near the ground, using a direct drive from the rotor assembly to the ground-based gearbox, improving accessibility for maintenance. The basic parts of a Vertical axis wind turbine (VAWT) are shown in figure. Figure5.2: Vertical axis wind turbine [10].
  • 18.
    18 5.3 WindPower in India The development of wind power in India began in the 1990s, and has significantly increased in the last few years [11]. Although a relative newcomer to the wind industry compared with Denmark or the United States, India has the fifth largest installed wind power capacity in the world. In 2009-10 India's growth rate was highest among the other top four countries. Wind power accounts for 6% of India's total installed power capacity, and it generates 1.6% of the country's power.In its 12th Five Year Plan (2012-2017), the Indian Government has set a target of adding 18.5 GW of renewable energy sources to the generation mix out of which 11 GW is Wind Energy. 5.3.1State-level Wind Power There is a growing number of wind energy installations in states across India. As of 31 March 2014 the installed capacity of wind power in India was 21264 MW. Wind energy generation in states across India is shown in table. State Capacity(M.W) Tamil Nadu 7253 Gujarat 3414 Maharashtra 2976 Rajasthan 2820 Karnataka 2409 Andhra Pradesh 753 Madhya Pradesh 439 Kerala 55 Table 5.1: State-level wind power in India. [9]
  • 19.
    Chapter 6 TidalEnergy 19 6.1 Introduction The tides in the sea are the result of the universal gravitational effect of heavenly bodies like sun and moon on the earth. Due to fluidity of water mass, the effect of this force becomes apparent in the motion of water. It shows a periodic rise and fall in levels. It is in synthesis with the daily cycle of rising and setting of sun and moon. This periodic rise and fall of the water level of sea is called tide. These tides can be used to produce electrical energy. It is called, “Tidal Energy”. When the water is above the mean sea level, it is called, “Flood Tide”. When the level is below the mean sea level, it is called, “Ebb Tide”. To harness the tides, a dam is built across the mouth of the bay. It will have large gates in it. It has low head hydraulic reversible turbines. A tidal basin is formed. It gets separated from the sea by dam. The difference in water level is obtained between the basin and sea. By using reversible water turbines, turbines can be run continuously, both during high tide and low tide. The turbine is coupled to generator. Potential energy of the water stored in the basin as well as energy during high tides used to drive turbine. It is coupled to generator to generate electrical energy. 6.2 Types of Tides Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth. 6.2.1 Spring Tide When the moon is full or new, the gravitational pull of the moon and sun are combined. At these times, the high tides are very high and the low tides are very low. This is known as a spring high tide. Spring tides are especially strong tides (they do not have anything to do with the season Spring). They occur when the Earth, the Sun, and the Moon are in a line [12]. The gravitational forces of the Moon and the Sun both contribute to the tides. Spring tides occur during the full moon and the new moon. Spring tide is shown in figure.
  • 20.
    Figure6.1: Spring tide.[12] 20 6.2.2 Neap Tide During the moon's quarter phases the sun and moon work at right angles, causing the bulges to cancel each other. The result is a smaller difference between high and low tides and is known as a neap tide. Neap tides are especially weak tides. They occur when the gravitational forces of the Moon and the Sun are perpendicular to one another (with respect to the Earth). Neap tides occur during quarter moons. Neap tide is shown in figure. Figure6.2: Neap Tide .[12]
  • 21.
    21 6.3 TidalEnergy Conversion The generation of electricity using tidal power is basically the transformation of tidal power found in tidal motion of water in seas and oceans into electrical energy. This is done using a very basic idea involving the use of a barrage or small dam built at the entrance of a bay where tides are known to reach very high levels of variation [13]. This barrage will trap tidal water behind it creating a difference in water level, which will in turn create potential energy. This potential energy will then be used in creating kinetic energy as doors in the barrage are opened and the water rush from the high level to the lower level. This kinetic energy will be converted into rotational kinetic energy that will rotate turbines giving electrical energy. Fig shows the process in very simple terms. Figure 6.3: A diagram showing transformation of tidal energy to electric energy.
  • 22.
    6.4 Examples ofTidal Power Stations Worldwide 1. The most major tidal power station in operation today is a 240-megawatt at the mouth of the La Rance river estuary on the northern coast of France (a large coal or nuclear power plant generates about 1,000 MW of electricity). The La Rance generating station has been in operation since 1966 and has been a very reliable source of electricity for France. La Rance was supposed to be one of many tidal power plants in France, until their nuclear program was greatly expanded in the late 1960's. 2. 254 MW Sihwa Lake Tidal Power Plant in South Korea is the largest tidal power installation in the world. Construction was completed in 2011. 3. The Indian state of Gujarat is planning to host South Asia's first commercial-scale tidal power station. The company Atlantis Resources planned to install a 50MW tidal farm in the Gulf of Kutch on India's west coast, with construction starting early in 2012 22
  • 23.
    Conclusion Renewable energyhas the potential to generate significant amounts of electricity at certain sites around the world. The negative environmental impacts of renewable energy are probably much smaller than those of other sources of electricity. Renewable energy has the potential to create many opportunities at all levels, especially in rural areas. 1. Innovative financing 2. Mainstreaming of renewable is very essential 3. Energy security, economic growth and environment protection are the national energy policy drivers of any country of the world. 4. There is a need to boost the efforts for further development and promotion of renewable energy sources. 5. Promoting renewable energy technologies as a way to address concerns about energy security and economic growth. 6. Specific action included promoting deployment, innovation and basic research in renewable energy Technologies. India’s quest for energy security and sustainable development rests a great deal on the ability to tap energy from alternate sources or the renewable sources. 23
  • 24.
    References [1 ]Overview of Renewable Energy Potential of India, Peter Meissen, President, Global Energy Network Institute (GENI ) available at http://www.geni.org. [2] Planning Commission, Govt. of India—September 1995 & September 1996 24 Projections to 2020–2021. [3] National Electricity Plan Vol 1 (Generation) Central Electricity Authority, Ministry of Power, GOI] [4] Central Electricity Authority, Ministry of Power, Government of India. June 2014. Retrieved 1 August 2014. [5] Rai, G.D., Non-Conventional energy sources, Khanna Publishers, New Delhi, 2nd Edition, 2002. [6] The Solar Energy Book-Once More." Mother Earth News. [7] Solar: photovoltaic: Lighting Up The World retrieved 19 May 2009. [8] Annual Report, of Ministry of Non-Conventional Energy Sources, Govt. of India, New Delhi. [9] "Technical Specs of Common Wind Turbine Models". Aweo.org. [10] Jha, Ph.D., A.R. (2010). Wind turbine technology. Boca Raton, FL: CRC Press. [11] "Indian Wind Energy and Economy". Indianwindpower.com. [12] Developments in Tidal Energy: Proceedings of the Third Conference on Tidal Power, Institution Of Civil Engineers (Contributor). [13] Ocean, Tidal, and Wave Energy: Power from the Sea (Energy Revolution) by Lynne.