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IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 212
ISSUES AND CHALLENGES WITH RENEWABLE ENERGY IN OMAN
Al Hatmi Y1
, C.S. Tan2
1
College of Engineering, Universiti Tenaga Nasional (UNITEN), Malaysia
alhatmi2012@gmail.com
2
Institute of Energy Policy and Research (IEPRe), Universiti Tenaga Nasional (UNITEN), Malaysia
chingsin@uniten.edu.my
Abstract
This paper provides a comprehensive review of energy sources in Oman as well as looking into the structures of the electricity sector
in the Sultanate of Oman. The growing population and the spacing between housing units in the territory of Oman has became a
major challenges to the government in generation planning due to its limited energy resources in the country. Hence, energy has
become an important sector in Omani vision 2020. Renewable energy (RE) sources form a vital and strategic solution for the
provision of electric power in the Sultanate; few studies have indicated that Oman is rich in solar and wind energy. However, this
sector faces many challenges, and the development of RE is at a slow pace. This paper identify the issues and challenges of RE in
Oman
Index Terms: Renewable Energy, Solar Power, Wind Energy, Oil and Gas, Electricity.
-----------------------------------------------------------------------***-----------------------------------------------------------------------
1. INTRODUCTION
Oman, like other Arab gulf countries, depends on oil and gas
to produce electricity. However, these resources are not
guaranteed to last forever, and are one of the energy security
issues in the country. Some of the gulf countries have
diversified their energy resources—for example, the United
Arab Emirates has considered the nuclear and Renewable
Energy (RE) as part of their electric generation and Qatar aims
to generate 20% of its energy from renewable by 2024 with
1800MW of installed green capacity by 2020 — As for Oman,
the progress of RE development is at a slow pace as currently
the electricity generation is still depending on the oil and gas.
Two RE resources that are identified to be potential in Oman
highlighted in most of the technical research done in Oman are
solar and wind energy. Most of the technical research papers
indicate that Oman is among the best areas in the world for
solar energy as well as certain areas in Oman for wind energy.
However, so far there is little progress in RE deployment in
Oman. The slow development of RE is probably due to the
lack of policy regulation in Oman as well as the limited budget
to promote RE in Oman.
2. COUNTRY OVERVIEW
2.1 Geographical Factor
Oman is a country with an area of 309,500 sq. km on the south
eastern coast of the Arabian Peninsula with a population of
3,090,150. The annual population growth is estimated at 2% at
present, with more than 27% of the Omani Population below
14 years of age and with 70.33% between ages of 15 and 64,
which creates a significant challenge in terms of finding future
employment opportunities. More than 30% of the population
live in a large area, which includes much inhospitable land,
living in small communities or living a nomadic existence [1].
2.2 Social Indicator
Oman is divided into 11 governorates, and each governorate is
divided into many Willyiah, and each Willyiah has many
small villages. The main challenge is the distance between
Willyiahs and between villages. This means that there are a lot
of expenses to provide these areas with electricity and link
them to the main grid.
2.3 Economic Indicator
Oman is divided into 11 governorates, and each governorate is
divided into many Willyiah, and each Willyiah has many
small villages. The main challenge is the distance between
Willyiahs and between villages. This means that there are a lot
of expenses to provide these areas with electricity and link
them to the main grid. Most of the industrial areas in Oman
depend on gas. However, the gas production is not stable and
may not be secure in the future, which will affect the
government’s development plans and annual budget.
Omani Vision 2020 seeks to reduce dependence on oil,
diversify the economy and create new employment
opportunities for all Omani citizens. The Vision 2020 also
stresses on the promotion of technology transfer and the
increased use of natural and renewable resources, with due
regard to the social and natural environment, which gives
priority to the following key aspects [2].
IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 213
• Diversification away from oil and towards an export-
oriented manufacturing industrial base; increasing the
proportion of Omanis working in the target industrial
companies.
• Promoting inward investment by foreign companies, with
a number of incentives for new industrial companies.
• Promotion of clean energy technologies and the
development of a conservation plan to protect the natural
environment
• Improvement of the water supply, both for irrigation and
for remote communities.
• Maximise earnings from the nation’s oil resources, whilst
extending reserves for future use.
• Provide power from the least cost sources to meet
domestic, commercial and anticipated industrial demand.
While this Vision 2020 provides a clear path for all ministries
and government agencies to follow, however, the development
of RE is still at a slow pace.
3. ENERGY INFRASTRUCTURE
Energy is a critical foundation for economic growth and social
progress. However, as the economy advances and human
society requires more energy, the lack of fossil energy and its
pollution of the environment has given rise to conflicts
between energy provision, environmental protection and
economic development [2].
On the other hand, the non-fixed price of gas and the oil
volatility led to institutions and governments promoting
research to find other energy resources with less
environmental impact, sustainable, stability and low costs. Up
to now, there is no effective alternative for oil and gas, but
there are hybrid alternatives that can reduce big oil and gas
attrition by mixing sources such as solar, wind and others.
Continued efforts to find new techniques will ultimately allow
Oman to dispense with gas and oil, which pollutes the
environment and affects the ozone layer, and find sources of
energy characterised by continuity.
3.1 Fossil Energy
The export of oil and gas is the foundation of the modern
economy in Oman. They are also used to fuel industry and for
domestic consumption, both directly and through electrical
power generation. The domestic consumption is priced in
relation to the opportunity costs from constraining experts [3].
Oman depends on gas and oil resources for almost all of its
energy needs. However, the country's natural gas supplies are
currently largely committed, and it may become a net importer
soon.
Table -1: The yearly average production of crude oil and gas
from 2000–2012
2000
2001
2002
2003
3004
2005
2006
2007
2008
2009
2010
2011
2012
Crude oil
(1000
barrels per
day)
954.9
955.8
897.3
819.5
779.8
774.7
737.5
710.4
756.8
812.5
864.6
884.9
918.47
Gas (BCM)
(Billion
Cubic
Meters)
15.248
20.709
22.322
24.082
24.104
25.937
30.209
30.261
30230
31.022
33.259
34.721
35.941
Table 1 show that the production of oil is unstable. It is
difficult to depend on this production in long-term
development because anything could happen, and a drop in
production or in prices could affect the government’s vision
for 2020. While gas production shows a slight increasing from
2000 to the end of 2012, there is no guarantee that this will
continue, and it is expected to go down slightly after 2017.
However, in 2012 the government covered the shortage of gas
by importing around 5.4 million cubic meters from Qatar [4].
3.2 Electrical Energy
The total electricity net demand increased from 13,286,792
MWh in 2006 to 21,312,390 MWh in 2011, an increase of
more than 62%. The electricity demand has been growing at a
compounded average growth rate of 9.45% from 2006–2011,
and it stood at 21,312,390 GWh in 2011. The peak demand at
Muscat Interconnected System (MIS), is expected to grow at
8% per year, from 4,216 MW in 2012 to 6,582 MW in 2018,
and in the Salalah system at 10% per year, from 394 MW in
2012 to 689 MW in 2018. Moreover, the rural system will
have an expected demand in 2018 of 685 MW.
Table -2: Estimation of electricity demand by system from
2012 to 2018
2012 2013 2014 2015 2016 2017 2018
MIS
System
4,216 4,594 5,007 5,374 5,760 6,151 6,582
Rural
System
136 178 233 305 399 523 685
Salalah
System
394 433 480 531 584 636 689
3.3 Electrical Grid Network
Gas production is more critical than crude oil, and it has a
direct effect on Oman’s economy and power production.
Oman LNG and Qallat LNG are consuming a large amount of
natural gas to produce LNG for export. Moreover, besides the
use for LNG trains, the gas is largely utilised for reinjection
into the oil reservoirs to maintain pressure and sustain oil
IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 214
production, while the remainder is being used in desalination
plants and as fuel to generate power. The electricity supply
industry in Oman is divided into the following three groups
namely; Main Interconnected System (MIS), The Rural
System and Salalah System.
• Main Interconnected System (MIS)
MIS is the main grid electrical network in the Sultanate of
Oman and covers the governorates of Muscat, Al Batinah, Al
Dakeliya, Al Buraimi, Al Dahera and Al Sharkia. It serves the
majority of Oman's population (641,275 consumers), covering
about 90% of the total electricity supplied in the Sultanate.
The system connects seven main power plants using a network
of 220 kV and 132 kV transmission lines. All companies
under this system generate electricity from natural gas.
• The Rural System
Rural Area Electrical Company (RAECO) operates in areas
where the transmission network of the MIS networks does not
currently exist, which includes the Musandam, Al Wusta and
Dhofar governorates. It generates, transmits and distributes
power in its areas. It is also responsible for electrification of
rural areas and funds this through a special mechanism in the
sector law. Most of the electricity in RAECO is generated in
diesel-fuelled facilities. Demand for electricity in RAECO
areas will increase considerably when the development
projects in the Al Dukm area and Masirah Island take off.
• The Salalah Power System
The Salalah power system, with voltage levels 33 kV and 132
kV, covers all the southern areas of the Sultanate of Oman
(Dofhar governorate) and serves 63,698 consumers. This
system uses both natural gas and diesel to generate electricity.
3.4 Energy Management
It is understood that the gas price for electricity power
generation by the Public Authority of Electricity and Water is
the equivalent of US$ 1.5 /Mcubic feet. Petroleum
Development of Oman (PDO) uses a price of $1/m ft3 for its
own gas use. There is a possibility that by the year 2020 the
availability of gas may become limited.
The use of electric power is central to social development as
well as commerce, industry, and fishing. Government policy is
to bring the benefits of modernisation to all parts of the
country. The Public Authority of Electricity and Water is
responsible for the supply of power to all citizens. It manages
a very effective programme of power generation and
distribution and rural electrification of 90–94% of the
population, with plans for further grid extensions and
deployment of more diesel generating sets.
The government power supply involves the operation of both
gas- and diesel-fuelled power stations with a transmission and
distribution grid that covers most of the demand in the north of
the country, and diesel power stations with local grids in the
south. In the Petroleum Development of Oman (PDO)
concession area, the PDO manages its own generation and
distribution system using a mixture of gas and diesel
generation. In addition to providing for its own use, the PDO
sells power to the government to supply settlements in the
concession area. A number of industrial concerns have their
own captive power generation capacity [5].
3.5 Management of Electricity Grid Network
Royal Decree 78/2004, promulgated on 1 August 2004, the
electricity sector was privatised and market structure was
implemented as well as establishment of a regulator. Former
structures were transferred to the following government-
owned companies [6]:
• Electricity Holding Company
• Oman Power and Water Procurement Company
• Oman Electricity Transmission Company
• Wadi Al Jizzi Power Company
• Al Ghubrah Power and Desalination Company
• Mazoon Electricity Company
• Majan Electricity Company
• Muscat Electricity Distribution Company
• Rural Areas Electricity Company
In terms of ownership, the companies represent a mix of
government and private ownership, such as the AES Barka,
SMN Barka, Al Kamil Power Company, United Power
Company, Dhofar Power Company, Sohar Power Company,
and Rusail Power Company.
These companies have a majority of private shareholders.
Further electricity privatisation will be implemented through
the sale of the government interest in some of the successor
companies listed above [7].
The government’s approach to privatisation is to allow 100%
private ownership shareholdings through the Muscat securities
market. Since 1 May 2005, the Authority has assumed full
responsibility for the regulation of electricity and the related
water sector. The followings activities in the sector are
regulated [8]:
• Generation, transmission, distribution, export, import and
supply of electricity
• Generation of electricity combined with desalination of
water
• Generation of electricity co-located with desalination of
water
• Central dispatching
• Development and/or operation of international
interconnections
• Functions of Oman Power and Water Procurement
Company (OPWP)
IJRET: International Journal of Research in Engineering and Technology
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Volume: 02 Issue: 07 | Jul-2013, Available @
3.6 Electricity Tariff
The current partial privatisation of power generation
indirectly increase the cost of energy supply to the consumer
instead of least cost generation in a regulated environment
The higher unit costs at the rural and remote areas are
expected due to the supply from off-grid diesel or petrol
generators in remote locations. Figure 1 shows the electricity
tariff structure in Oman for different types of customers.
Fig -1: Government electricity tariff structure
4. RENEWABLE ENERGY IN OMAN
Renewable energy usually refers to those energies that do not
pollute the environment and that can be recycled in nature.
International experts have now categorised renewable energy
as either traditional or new renewable energy. The traditional
type includes giant hydropower and biomass burnt directly;
the new renewable energy mainly refers to small hydropower,
solar energy, wind energy, biomass energy, geothermal energy
and ocean energy [9].
The fast economy development has led to increased energy
requirements in the markets. However, the fossil fuel
resources required for the generation of energy are
insufficient. Moreover, fossil fuels directly affect climate
change because of the effect of carbon emissions on
atmosphere. There are two main ways to reduce dependence
on fossil resources: first, by reducing energy consumption by
applying energy saving programmes focused on energy
demand reduction and energy efficiency in the industrial and
domestic spheres [10]; and second, by encouraging the
cultivation of renewable energy, as this is an effective
practical choice to reduce carbon emissions
In 2007, the Authority for Electricity Regulation (AER)
Oman announced that it would carry out a study in the fie
renewable energy. The purpose of this study was to provide an
overview of renewable energy sources in the Sultanate of
Oman and the potential of these resources for electricity
IJRET: International Journal of Research in Engineering and Technology eISSN: 2319
__________________________________________________________________________________________
2013, Available @ http://www.ijret.org
partial privatisation of power generation may
indirectly increase the cost of energy supply to the consumer
instead of least cost generation in a regulated environment.
at the rural and remote areas are
grid diesel or petrol
Figure 1 shows the electricity
tariff structure in Oman for different types of customers.
f structure
4. RENEWABLE ENERGY IN OMAN
Renewable energy usually refers to those energies that do not
pollute the environment and that can be recycled in nature.
International experts have now categorised renewable energy
renewable energy. The traditional
type includes giant hydropower and biomass burnt directly;
the new renewable energy mainly refers to small hydropower,
solar energy, wind energy, biomass energy, geothermal energy
velopment has led to increased energy
requirements in the markets. However, the fossil fuel
resources required for the generation of energy are
insufficient. Moreover, fossil fuels directly affect climate
bon emissions on the
. There are two main ways to reduce dependence
on fossil resources: first, by reducing energy consumption by
applying energy saving programmes focused on energy
demand reduction and energy efficiency in the industrial and
]; and second, by encouraging the
cultivation of renewable energy, as this is an effective and
In 2007, the Authority for Electricity Regulation (AER),
announced that it would carry out a study in the field of
renewable energy. The purpose of this study was to provide an
overview of renewable energy sources in the Sultanate of
Oman and the potential of these resources for electricity
production. The study assessed the available renewable energy
technologies and their technical suitability for use in the
Sultanate. The study summarised the
energy sources in Oman are
these are the most abundant resources in the Sultanate. It also
recommended the implementat
feasibility study for electrical production using solar energy of
100–200 MW. This study was published in 2008 [1
The level of solar energy density in Oman is among the
highest in the world. There is a significant opportunit
develop solar energy resources throughout Oman and to
provide sufficient electricity to meet all of Oman’s domestic
electricity requirements. High solar energy density is available
in all regions of Oman, and it significantly increases during
the summer season, which coincides with the peak periods of
electricity demand in Oman. The areas of highest density are
dessert areas, while the coastal area in the southern part of
Oman has the lowest density.
The high ratio of sky clearness, at about 342 days
and the geographical location of Oman play an important role
in creating the huge potential for solar electricity generation.
The studies also show several locations in Oman with good
projections for utilising wind energy for electricity produc
For example, wind speeds in Dhofar, particularly in the
mountains north of Salalah, are comparable to the recorded
wind speeds at different production sites for electric wind
power in Europe.
Adel Gastli and Yassine Charabi [1
the land in Oman receives solar radiation ranging between
5500–6000 Wh/m2
/day and 2500
January, respectively. However, solar radiation has critical
environmental risks, mainly related to mineral dust deposition
that can greatly reduce the profits of any solar energy system.
The movement of a mineral dust particle, according
size and speed, is an efficient erodible agent that can affect the
optical properties of any solar energy system; this means that
it will require frequent cleaning using fresh water, which can
be difficult because of the general scarcity of fre
the desert and semi-desert zones. This commodity should not
be wasted on cleaning.
degree of contamination from mineral dust and tracked the
exposure to dust constraint on the local scale using proxy open
source data, considering recent NASA satellite data from the
Multi-angle Imaging Spectro
provides significant information about dust emission,
transport, concentration and property evolution using Aerosol
Optical Depth (AOD) [13].
They used MISR AOD data sets to appraise the dust risk map
for solar energy system sitting and implementation in Oman.
The suggested approach is very practical in pointing out the
degree of contamination with dust in space and time.
Consistent results between
eISSN: 2319-1163 | pISSN: 2321-7308
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215
production. The study assessed the available renewable energy
s and their technical suitability for use in the
Sultanate. The study summarised the potential renewable
are solar energy and wind energy, as
these are the most abundant resources in the Sultanate. It also
recommended the implementation of pilot projects and a
feasibility study for electrical production using solar energy of
200 MW. This study was published in 2008 [11].
The level of solar energy density in Oman is among the
highest in the world. There is a significant opportunity to
develop solar energy resources throughout Oman and to
provide sufficient electricity to meet all of Oman’s domestic
electricity requirements. High solar energy density is available
in all regions of Oman, and it significantly increases during
er season, which coincides with the peak periods of
electricity demand in Oman. The areas of highest density are
dessert areas, while the coastal area in the southern part of
Oman has the lowest density.
The high ratio of sky clearness, at about 342 days per year,
and the geographical location of Oman play an important role
in creating the huge potential for solar electricity generation.
The studies also show several locations in Oman with good
projections for utilising wind energy for electricity production.
For example, wind speeds in Dhofar, particularly in the
mountains north of Salalah, are comparable to the recorded
wind speeds at different production sites for electric wind
Adel Gastli and Yassine Charabi [12] found the majority of
the land in Oman receives solar radiation ranging between
/day and 2500–3000 Wh/m2
/day in July and
January, respectively. However, solar radiation has critical
environmental risks, mainly related to mineral dust deposition
that can greatly reduce the profits of any solar energy system.
The movement of a mineral dust particle, according to specific
size and speed, is an efficient erodible agent that can affect the
optical properties of any solar energy system; this means that
it will require frequent cleaning using fresh water, which can
be difficult because of the general scarcity of fresh water in
desert zones. This commodity should not
Furthermore, they also studied the
degree of contamination from mineral dust and tracked the
exposure to dust constraint on the local scale using proxy open
recent NASA satellite data from the
angle Imaging Spectro-Radiometer (MISR). MISR
provides significant information about dust emission,
transport, concentration and property evolution using Aerosol
].
y used MISR AOD data sets to appraise the dust risk map
for solar energy system sitting and implementation in Oman.
The suggested approach is very practical in pointing out the
degree of contamination with dust in space and time.
Consistent results between dust emission sources, MISR AOD
IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 216
and the climate synoptic conditions indicate that large areas of
Oman are highly affected by mineral dust, in terms of the
concentration and occurrence of dust storm events throughout
the year, and due to their proximity to emission sources they
are not suitable for the implementation of solar energy
systems. So, it is possible to conclude that areas with high dust
concentrations are not suitable for solar energy applications
because they would require more frequent cleaning and
therefore consume large amounts of water. As a result, it is
important to include the annual average AOD as an important
constraint during the sitting of solar energy systems. In a case
study on Oman, when they considered this constraint it gave a
reduction of 64% from the most suitable areas.
Moreover, they are using GIS-based spatial fuzzy multi-
criteria evaluation to assist the solar energy resource and site
suitability for large PV farms implementations. This will be
affected by different factors, which are classified in three main
categories: technical, economic and environmental. These
factors depend on the geographical location, biophysical
attributes and socio-economic infrastructure of the country
under study [14]. They developed the first geographical
mapping models to locate the most appropriate sites for
different PV technologies in Oman using MCA. They
combined the different weights of all the factors listed above.
The most isolated areas were predisposed to high suitability.
They found that all types of PV technologies can produce
huge amounts of electricity in Oman.
They also made a GIS assessment of a large CSP plant in
Duqum in Oman using GIS tools [15]. They calculated the
solar radiation on a DEM using Arc Map. They found that the
highest solar radiation per day was 8217 Wh/m2
/day during
the month of June (summer solstice) and the lowest one was
4059 Wh/m2
/day in December (winter solstice).
They also worked with Slim Zekri to investigate the potential
for implementing combined electric power and seawater
desalination plants using concentrated solar power
technologies for Wilayat Duqum in Oman [16]. They
concluded that seawater desalination will have a major share
on freshwater supply that will be reasonable for Duqum in
particular and Oman in general. Moreover, if concentrating
solar power (CSP) is used for an energy supply, it will be a
domestic energy source and will not have a major
environmental impact. It was found that the amount of solar
radiation in the Duqum region is very promising, and if CSP is
used, it will help provide a sufficient amount of both
electricity and desalinated water. Based on GIS solar radiation
calculations, geographical topology and the master
development plan of the Duqum region, the most appropriate
site for a CSP plant is in close proximity to the coast in an
industrial area.
In [17], they developed a Matlab/SIMULINK for the solar PV
cell modules and array. The model is based on the
fundamental circuit equation of a solar PV cell, taking into
account the effects of physical and environmental parameters,
such as the solar radiation, and validated experimentally using
the highly efficient PVL-124 solar laminate panel. This model
would provide a tool for predicting the behaviour of a solar
PV cell, module and array under climate and physical
parameter changes and also as a photovoltaic generator in the
framework of the Sim-power-System Matlab/SIMLINK
toolbox in the field of solar PV power conversion systems.
In [18], they assessed wind power cost per kWh of energy
produced using four types of wind machines at 27 locations on
an hourly basis from 2000–2009. The study found that the
energy cost is low in the southern and middle region of Oman
and high in the northern region. It also developed wind
duration curves for 27 locations, which is beneficial in finding
the duration and availability of the wind in different areas in
terms of the useful range of wind speed.
However, in [19], they investigate five years of hourly wind
data from 29 weather stations. They used different criteria,
including theoretical wind power output, vertical profiles,
turbulence and peak demand fitness. They acknowledged the
potential location for wind energy applications in Oman. They
considered air density and roughness length when calculating
the wind power density potential. Moreover, they used a
seasonal approach to identify the potential in different seasons.
They introduced a scoring approach in order to classify the
potential sites based on five factors: wind power output factor,
vertical profile factor, wind speed turbulence factor, wind
diurnal variation factor and peak demand fitness factor. In
[20], they evaluated the performance of the Numerical
Weather Prediction (NWP) model data for wind energy
application in Oman with a comparison to satellite data.
Moreover, they used a nested ensemble NWP approach, which
leads to more accurate resource assessment, wind turbine
micros ting and short-term energy forecasting.
In [21], they implemented the NWP models and the multi-
criteria decision technique (MCDM) on Masirah Island as a
case study. The resource assessment of the island was based
on the mean wind speed and wind power distribution over the
entire island at different heights. They scored the locations
using MCDM model across the island based on their
suitability for wind energy applications. A wind farm land
suitability index using multi-criteria analysis was applied, and
it consisted of a set of alternative locations and a set of
selection criteria. Using the analytical hierarchy process with
an ordered weight averaging (AHP-OWA) aggregation
function they derive the wind farm land suitability index..
Different selection criteria, such as distance to road, terrain
slope, urban area, historical locations, wildlife and natural
reserves, wind power density, energy demand matching,
percentage of sustainable wind, turbulence intensity and sand
dunes were considered.
IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 217
5. ISSUES AND BARRIERS TO RE
DEPLOYMENT
Renewable Energy technologies possess many long-term
benefits that are often overlooked. These benefits include
energy security, job creation, business opportunities,
sustainable development and prevention of global warming
[22].
Advancing of RE development is an effective approach for
addressing energy security and climate change. Currently, the
U.S., Japan, Brazil and other countries have listed the
development of RE as an important strategy for the future
[23]. Most research in Brazil on renewable energy policy
evolution is related to the evolution of biomass energy
policies, while research in Russian renewable energy policy
evolution is insufficient and limited to policies on the
diffusion and transfer of renewable energy technologies. In
China, research is focused on two aspects: assessing the effect
of implementation based on the type of policy and analysing
renewable energy evolution policies according to energy types
[24].
RE development is dependent on political support. As long as
RE is not financially and economically competitive in the
liberalised market, there is a need for political support.
However, this energy is expected to become progressively
cheaper in the near future.
A positive investment climate, strong property rights and low
tax regimes, with established participation in the power sector
from leading international firms, will certainly provide more
incentives for RE applications in the country. It is important to
receive non-renewable energy policy support. In addition,
laws governing power generation regulation shall provide
more flexibility and incentives for RE. For instance, the
government needs to develop policies to support investors in
large-scale solar plants and also to support/increase market
opportunities for small-scale solar photovoltaic applications.
Furthermore if the development of the appropriate regulatory
and financial framework is not accelerated, neighbouring
countries, such as the United Arab Emirates (UAE), may
capture first-mover advantages and develop regional expertise
because of their recently announced subsidies and incentives
for solar photovoltaic installations [25].
Therefore it is urgently recommended that efficient local,
regional and international networking capabilities should be
established in order to benefit from others best practices and to
acquire knowledge and expertise faster and more efficiently.
Also, a local research and development infrastructure has to be
established and developed, which will involve collaboration
between different constituents, including academia, industry
and government.
The deployment of renewable energy in Oman has grown up
in a very slow pace for the past few years. This is related to
the fact that there are no clear plans for the future of energy in
Oman, as there is no strategic plan for renewable energy, nor
is there a clear target. Following are some of the reasons for
the slow RE development in Oman:
Lack of coordination and consistency in policy
Since the first study done by PDO in 2000 [6], there has been
no progress, and there has only been one new study, in 2008,
by the Authority for Electricity Regulation [11]. The country
has been slow in implementing the recommendations of the
2008 study. This is because the responsibility for Oman
renewable energy business goes to many sectors, such as
Petroleum Development Oman (PDO), the Authority of
Electricity and Water, the Authority for Electricity Regulation,
Oman Power and Water Procurement and the RAECO. This
makes it difficult to provide consistent energy policies.
Furthermore, energy policies in different fields lack
coordination, making it difficult to form an effective long-term
system to support sustainable RE development.
No encouragement for RE
The government has developed policies in renewable energy
in 2008, but it is still unable to compete with fossil energy and
its development depends upon the government support. The
government provides subsidies for fossil energy has hampered
the development and support of RE. In order to promote RE, a
research task could be commissioned to establish in greater
detail the locations and strengths of local wind and solar
resources. A task force or forum might bring together
experience and ability to provide a powerful initiative. It
would be a prestigious body through which Oman would be
able to develop its own renewable energy resources and gain
international recognition in this growing world business
sector.
No financing system for renewable energy projects
There is a high initial unit cost of equipment and maintenance,
as a result of small initial order sizes, novel equipment, and
the small number of units in the field to maintain. The industry
could be kick started with funding for the necessary
equipment, working capital, and initial overheads.
Experienced management would be needed.
Inadequate investment in technical research and development
for renewable energy
Renewable energy is a technique-intensive and fund-intensive
industry. It is a requirement for stable and rapid development.
By the end of 2011, there had been no investment in
renewable energy allocated in the budget. A training
programme for all levels of design and operation might be
established to focus on the operation and support of
immediately deployable technologies (of small-scale PV and
wind-powered water pumping). This programme might then
be expanded to provide the research, development and
IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 218
Regulatory Policies Public FinancingFiscal
Incentives
Feed-in Tariff
Utility Quota
Obligation
Net Metering
Obligation
and Mandate
Tradable
Renewable
Energy
Certificate
(REC)
Capital
Subsidy,
Grand or
Rebate
Tax
Incentives
Energy
Production
Payment
Public
Investment,
Loans or
Grants
Public
Competitive
Bidding
demonstration capabilities needed to support a developing
business sector. This design and development capability might
also be applied to providing a demonstration and testing
service for international manufacturers.
6. WAY FORWARD
With its strong solar resources and existing universities, Oman
has an opportunity to establish a world position through the
provision of a professional demonstration and monitoring
capability for international technology providers, as well as to
carry forward the further development of relevant
technologies. Such an initiative would involve the
development of an advanced professional skills base in
science and engineering. It might logically be expanded to
provide a specialisation in modern solar-efficient architecture
and energy management.
The success of the RE deployment by the Oman’s government
will depend on how well the regulatory policies, fiscal
incentives and the Public Financing are being carried out as
shown in Figure 2.
Fig -2: The renewable energy policy network (REN21)
7. CONCLUSION
There is an great opportunity for Oman to utilise renewable
energy for commercial advantage, as solar and wind energy
technologies in particular can achieve more competitive costs.
The effective use of these technologies would require the
development of a suitable skills base and provide the
opportunity to develop a local level of manufacturing, each
involving an increase in the level of skilled employment. It
would contribute to the extension and diversification of both
the economy and energy sources. It would be in line with the
objectives of Oman Vision 2020. It would also help Oman
establish a world position in this energy sector by providing a
professional demonstration and monitoring capability for
technology providers, as well as helping to carry forward the
development of relevant technologies.
REFERENCES
[1]. Ministry of National Economy, Oman. Final Results of
Census 2010. Supreme Council for Planning, National
centre for Statics and Information 2010.
http://www.moneoman.gov.om/viewPublication.aspx?i
d=781.
[2]. Ministry of National Economy, Oman. The
development experience and investment climate, 6th
edition. National Centre for Statics and Information
2008.
http://www.moneoman.gov.om/PublicationAttachment/
Oman
[3]. Mine Tukenmez and Erhan Demireli. (2012), ‘
Renewable energy policy in Turkey with the new legal
regulations’ , Renewable Energy, Vol. 39, pp. 1-9
[4]. Zhang P, Yang Y, Shi J, Zheng Y, Wang L, Li X.
Opportunities and challenges for renewable energy in
China. Renewable and Sustainable Energy Reviews
2011;13:439-449
[5]. Authority of electricity regulation, Oman (Annual
Reports).2009; http:/www.aer-oman.org.
[6]. Buckley JR, Holmes EB. Oman renewable energy for
sustainable development, Sustainable Energy
Marketing Company – Oman’s planning Vision 2020.
PDO executive summary 2000.
[7]. Authority of electricity regulation, Oman. Annual
Report, 2010; http://aer-oman.org.
[8]. Authority of electricity regulation, Oman. Annual
Report, 2011; http://aer-oman.org/ index.php?
option=com_content&view=article&id=87&Itemid=14
6
[9]. Public Authority for Electrical and Water, Oman.
Renewable energy in Oman ,summary report,2012;
http://www.paew.gov.om.
[10]. Banos R, Manzano-Agugliaro F, Montoya FG, Gil CI,
AlCayde A, Gomez J. Optimization methods applied to
renewable energy and sustainable energy: A review.
Renewable and Sustainable Energy Reviews
2011;15:1753–1766.
[11]. Authority of electrical regulation, Oman. Renewable
energy resources in Oman. 2008. http://aer-oman.org.
[12]. Al-Yahyai S, Charabi Y, Gastli A, Al-Alawi S. (2010),
‘ Assessment of wind energy potential locations in
Oman using data from existing weather stations’,
Renewable and Sustainable Energy Reviews
2010;14:1428–1436.
[13]. Gastli A, Charabi Y. Solar electricity prospects in
Oman using GIS-based solar radiation maps.
Renewable and Sustainable Energy Reviews
2010;14:790–797.
[14]. Charabi Y, Gastli A. Spatio-temporal assessment of
dust risk maps for solar energy systems using proxy
data. Renewable Energy 2012;44:23–31.
IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 219
[15]. Charabi Y, Gastli A. GIS assessment of large CSP plant
in Duqum, Oman. Renewable and Sustainable Energy
Reviews 2010;14:835–841.
[16]. Gastli A, Charabi Y, Zekri S. GIS-based assessment of
combined CSP electric power and seawater desalination
plant for Duqum-Oman. Renewable and Sustainable
Energy Reviews 2010;14:821–827.
[17]. Ugwuoke PE, Okeke CE. Statistical assessment of
average global and diffuse solar radiation on horizontal
surfaces in tropical climate. International Journal of
Renewable Energy Research 2012;2(2):269–273.
[18]. Salmi T, Bouzguenda M, Gastli A, Masoudi A.
Matlab/Simulink based modeling of solar photovoltaic
cell. International Journal of Renewable Energy
Research 2012;2(2):213–218.
[19]. Al-Yahyai S, Charabi Y, Al-Badi A, Gastli A. Nested
ensemble NWP approach for wind energy assessment.
Renewable Energy 2012;37:150–160.
[20]. Al-Yahyai S, Charabi Y, Gastli A, Al-Alawi S. Wind
resource assessment using numerical weather prediction
models and multi-criteria decision making technique:
case study (Masirah island, Oman),( Under preparation
to publish).
[21]. Al-Yahyai S, Charabi Y, Al-Badi A, Gastli A. Wind
farm land suitability indexing using multi-criteria
analysis. Renewable Energy 2012;44:80–87.
[22]. Huiming Z, Lianshui L, Jie C, Mengnan Z, Qing W.
Comparison of renewable energy policy evolution
among the BRICs. Renewable and Sustainable Energy
Reviews 2011. RSER-1465.
doi:10.1016/j.rser.2011.07.063
[23]. Martin NJ, Rice JL. Developing renewable energy
supply in Queensland, Australia: A study of the
barriers, targets, policies and actions. Renewable
Energy 2012:1-9. doi: 10.1016/j_renene.2012.01.006
[24]. Yiping F. Economic welfare impacts from renewable
energy consumption: the China experience. Renewable
and Sustainable Energy Reviews 2011;15:5120–5128.
[25]. Al-Badi AH, Malik A, Gastli A. Sustainable energy
usage in Oman- Opportunities and barriers. Renewable
and Sustainable Energy Review 2011;15:3780–3788.
[26]. Zhang P, Yang Y, Shi J, Zheng Y, Wang L, Li X.
Opportunities and challenges for renewable energy
policy in China. Renewable and Sustainable Energy
Review 2009;13:439–449.
BIOGRAPHIES
Al Hatmi Yousof, is currently pursuing his
PhD in Universiti Tenaga Nasional. He
completed his M.Sc. in Mechanical
Engineering and B.Eng. in Mechanical and
Industrial Engineering at University of
Sultan Qaboos, Oman. His research interest
is Renewable Energy
Tan Ching Sin is currently the Head of
Energy Security of the Institute of Energy
Policy and Research (IEPRe), UNITEN.
He holds a MSc and PhD (Electrical
Engineering), from University of
Strathclyde, UK and B.Eng in Electrical
Engineering from Universiti of Teknologi
Malaysia, Malaysia. His current research
interests are Energy Security, Renewable
Energy, Energy Efficiency and
deregulation.

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  • 1. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308 __________________________________________________________________________________________ Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 212 ISSUES AND CHALLENGES WITH RENEWABLE ENERGY IN OMAN Al Hatmi Y1 , C.S. Tan2 1 College of Engineering, Universiti Tenaga Nasional (UNITEN), Malaysia alhatmi2012@gmail.com 2 Institute of Energy Policy and Research (IEPRe), Universiti Tenaga Nasional (UNITEN), Malaysia chingsin@uniten.edu.my Abstract This paper provides a comprehensive review of energy sources in Oman as well as looking into the structures of the electricity sector in the Sultanate of Oman. The growing population and the spacing between housing units in the territory of Oman has became a major challenges to the government in generation planning due to its limited energy resources in the country. Hence, energy has become an important sector in Omani vision 2020. Renewable energy (RE) sources form a vital and strategic solution for the provision of electric power in the Sultanate; few studies have indicated that Oman is rich in solar and wind energy. However, this sector faces many challenges, and the development of RE is at a slow pace. This paper identify the issues and challenges of RE in Oman Index Terms: Renewable Energy, Solar Power, Wind Energy, Oil and Gas, Electricity. -----------------------------------------------------------------------***----------------------------------------------------------------------- 1. INTRODUCTION Oman, like other Arab gulf countries, depends on oil and gas to produce electricity. However, these resources are not guaranteed to last forever, and are one of the energy security issues in the country. Some of the gulf countries have diversified their energy resources—for example, the United Arab Emirates has considered the nuclear and Renewable Energy (RE) as part of their electric generation and Qatar aims to generate 20% of its energy from renewable by 2024 with 1800MW of installed green capacity by 2020 — As for Oman, the progress of RE development is at a slow pace as currently the electricity generation is still depending on the oil and gas. Two RE resources that are identified to be potential in Oman highlighted in most of the technical research done in Oman are solar and wind energy. Most of the technical research papers indicate that Oman is among the best areas in the world for solar energy as well as certain areas in Oman for wind energy. However, so far there is little progress in RE deployment in Oman. The slow development of RE is probably due to the lack of policy regulation in Oman as well as the limited budget to promote RE in Oman. 2. COUNTRY OVERVIEW 2.1 Geographical Factor Oman is a country with an area of 309,500 sq. km on the south eastern coast of the Arabian Peninsula with a population of 3,090,150. The annual population growth is estimated at 2% at present, with more than 27% of the Omani Population below 14 years of age and with 70.33% between ages of 15 and 64, which creates a significant challenge in terms of finding future employment opportunities. More than 30% of the population live in a large area, which includes much inhospitable land, living in small communities or living a nomadic existence [1]. 2.2 Social Indicator Oman is divided into 11 governorates, and each governorate is divided into many Willyiah, and each Willyiah has many small villages. The main challenge is the distance between Willyiahs and between villages. This means that there are a lot of expenses to provide these areas with electricity and link them to the main grid. 2.3 Economic Indicator Oman is divided into 11 governorates, and each governorate is divided into many Willyiah, and each Willyiah has many small villages. The main challenge is the distance between Willyiahs and between villages. This means that there are a lot of expenses to provide these areas with electricity and link them to the main grid. Most of the industrial areas in Oman depend on gas. However, the gas production is not stable and may not be secure in the future, which will affect the government’s development plans and annual budget. Omani Vision 2020 seeks to reduce dependence on oil, diversify the economy and create new employment opportunities for all Omani citizens. The Vision 2020 also stresses on the promotion of technology transfer and the increased use of natural and renewable resources, with due regard to the social and natural environment, which gives priority to the following key aspects [2].
  • 2. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308 __________________________________________________________________________________________ Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 213 • Diversification away from oil and towards an export- oriented manufacturing industrial base; increasing the proportion of Omanis working in the target industrial companies. • Promoting inward investment by foreign companies, with a number of incentives for new industrial companies. • Promotion of clean energy technologies and the development of a conservation plan to protect the natural environment • Improvement of the water supply, both for irrigation and for remote communities. • Maximise earnings from the nation’s oil resources, whilst extending reserves for future use. • Provide power from the least cost sources to meet domestic, commercial and anticipated industrial demand. While this Vision 2020 provides a clear path for all ministries and government agencies to follow, however, the development of RE is still at a slow pace. 3. ENERGY INFRASTRUCTURE Energy is a critical foundation for economic growth and social progress. However, as the economy advances and human society requires more energy, the lack of fossil energy and its pollution of the environment has given rise to conflicts between energy provision, environmental protection and economic development [2]. On the other hand, the non-fixed price of gas and the oil volatility led to institutions and governments promoting research to find other energy resources with less environmental impact, sustainable, stability and low costs. Up to now, there is no effective alternative for oil and gas, but there are hybrid alternatives that can reduce big oil and gas attrition by mixing sources such as solar, wind and others. Continued efforts to find new techniques will ultimately allow Oman to dispense with gas and oil, which pollutes the environment and affects the ozone layer, and find sources of energy characterised by continuity. 3.1 Fossil Energy The export of oil and gas is the foundation of the modern economy in Oman. They are also used to fuel industry and for domestic consumption, both directly and through electrical power generation. The domestic consumption is priced in relation to the opportunity costs from constraining experts [3]. Oman depends on gas and oil resources for almost all of its energy needs. However, the country's natural gas supplies are currently largely committed, and it may become a net importer soon. Table -1: The yearly average production of crude oil and gas from 2000–2012 2000 2001 2002 2003 3004 2005 2006 2007 2008 2009 2010 2011 2012 Crude oil (1000 barrels per day) 954.9 955.8 897.3 819.5 779.8 774.7 737.5 710.4 756.8 812.5 864.6 884.9 918.47 Gas (BCM) (Billion Cubic Meters) 15.248 20.709 22.322 24.082 24.104 25.937 30.209 30.261 30230 31.022 33.259 34.721 35.941 Table 1 show that the production of oil is unstable. It is difficult to depend on this production in long-term development because anything could happen, and a drop in production or in prices could affect the government’s vision for 2020. While gas production shows a slight increasing from 2000 to the end of 2012, there is no guarantee that this will continue, and it is expected to go down slightly after 2017. However, in 2012 the government covered the shortage of gas by importing around 5.4 million cubic meters from Qatar [4]. 3.2 Electrical Energy The total electricity net demand increased from 13,286,792 MWh in 2006 to 21,312,390 MWh in 2011, an increase of more than 62%. The electricity demand has been growing at a compounded average growth rate of 9.45% from 2006–2011, and it stood at 21,312,390 GWh in 2011. The peak demand at Muscat Interconnected System (MIS), is expected to grow at 8% per year, from 4,216 MW in 2012 to 6,582 MW in 2018, and in the Salalah system at 10% per year, from 394 MW in 2012 to 689 MW in 2018. Moreover, the rural system will have an expected demand in 2018 of 685 MW. Table -2: Estimation of electricity demand by system from 2012 to 2018 2012 2013 2014 2015 2016 2017 2018 MIS System 4,216 4,594 5,007 5,374 5,760 6,151 6,582 Rural System 136 178 233 305 399 523 685 Salalah System 394 433 480 531 584 636 689 3.3 Electrical Grid Network Gas production is more critical than crude oil, and it has a direct effect on Oman’s economy and power production. Oman LNG and Qallat LNG are consuming a large amount of natural gas to produce LNG for export. Moreover, besides the use for LNG trains, the gas is largely utilised for reinjection into the oil reservoirs to maintain pressure and sustain oil
  • 3. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308 __________________________________________________________________________________________ Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 214 production, while the remainder is being used in desalination plants and as fuel to generate power. The electricity supply industry in Oman is divided into the following three groups namely; Main Interconnected System (MIS), The Rural System and Salalah System. • Main Interconnected System (MIS) MIS is the main grid electrical network in the Sultanate of Oman and covers the governorates of Muscat, Al Batinah, Al Dakeliya, Al Buraimi, Al Dahera and Al Sharkia. It serves the majority of Oman's population (641,275 consumers), covering about 90% of the total electricity supplied in the Sultanate. The system connects seven main power plants using a network of 220 kV and 132 kV transmission lines. All companies under this system generate electricity from natural gas. • The Rural System Rural Area Electrical Company (RAECO) operates in areas where the transmission network of the MIS networks does not currently exist, which includes the Musandam, Al Wusta and Dhofar governorates. It generates, transmits and distributes power in its areas. It is also responsible for electrification of rural areas and funds this through a special mechanism in the sector law. Most of the electricity in RAECO is generated in diesel-fuelled facilities. Demand for electricity in RAECO areas will increase considerably when the development projects in the Al Dukm area and Masirah Island take off. • The Salalah Power System The Salalah power system, with voltage levels 33 kV and 132 kV, covers all the southern areas of the Sultanate of Oman (Dofhar governorate) and serves 63,698 consumers. This system uses both natural gas and diesel to generate electricity. 3.4 Energy Management It is understood that the gas price for electricity power generation by the Public Authority of Electricity and Water is the equivalent of US$ 1.5 /Mcubic feet. Petroleum Development of Oman (PDO) uses a price of $1/m ft3 for its own gas use. There is a possibility that by the year 2020 the availability of gas may become limited. The use of electric power is central to social development as well as commerce, industry, and fishing. Government policy is to bring the benefits of modernisation to all parts of the country. The Public Authority of Electricity and Water is responsible for the supply of power to all citizens. It manages a very effective programme of power generation and distribution and rural electrification of 90–94% of the population, with plans for further grid extensions and deployment of more diesel generating sets. The government power supply involves the operation of both gas- and diesel-fuelled power stations with a transmission and distribution grid that covers most of the demand in the north of the country, and diesel power stations with local grids in the south. In the Petroleum Development of Oman (PDO) concession area, the PDO manages its own generation and distribution system using a mixture of gas and diesel generation. In addition to providing for its own use, the PDO sells power to the government to supply settlements in the concession area. A number of industrial concerns have their own captive power generation capacity [5]. 3.5 Management of Electricity Grid Network Royal Decree 78/2004, promulgated on 1 August 2004, the electricity sector was privatised and market structure was implemented as well as establishment of a regulator. Former structures were transferred to the following government- owned companies [6]: • Electricity Holding Company • Oman Power and Water Procurement Company • Oman Electricity Transmission Company • Wadi Al Jizzi Power Company • Al Ghubrah Power and Desalination Company • Mazoon Electricity Company • Majan Electricity Company • Muscat Electricity Distribution Company • Rural Areas Electricity Company In terms of ownership, the companies represent a mix of government and private ownership, such as the AES Barka, SMN Barka, Al Kamil Power Company, United Power Company, Dhofar Power Company, Sohar Power Company, and Rusail Power Company. These companies have a majority of private shareholders. Further electricity privatisation will be implemented through the sale of the government interest in some of the successor companies listed above [7]. The government’s approach to privatisation is to allow 100% private ownership shareholdings through the Muscat securities market. Since 1 May 2005, the Authority has assumed full responsibility for the regulation of electricity and the related water sector. The followings activities in the sector are regulated [8]: • Generation, transmission, distribution, export, import and supply of electricity • Generation of electricity combined with desalination of water • Generation of electricity co-located with desalination of water • Central dispatching • Development and/or operation of international interconnections • Functions of Oman Power and Water Procurement Company (OPWP)
  • 4. IJRET: International Journal of Research in Engineering and Technology __________________________________________________________________________________________ Volume: 02 Issue: 07 | Jul-2013, Available @ 3.6 Electricity Tariff The current partial privatisation of power generation indirectly increase the cost of energy supply to the consumer instead of least cost generation in a regulated environment The higher unit costs at the rural and remote areas are expected due to the supply from off-grid diesel or petrol generators in remote locations. Figure 1 shows the electricity tariff structure in Oman for different types of customers. Fig -1: Government electricity tariff structure 4. RENEWABLE ENERGY IN OMAN Renewable energy usually refers to those energies that do not pollute the environment and that can be recycled in nature. International experts have now categorised renewable energy as either traditional or new renewable energy. The traditional type includes giant hydropower and biomass burnt directly; the new renewable energy mainly refers to small hydropower, solar energy, wind energy, biomass energy, geothermal energy and ocean energy [9]. The fast economy development has led to increased energy requirements in the markets. However, the fossil fuel resources required for the generation of energy are insufficient. Moreover, fossil fuels directly affect climate change because of the effect of carbon emissions on atmosphere. There are two main ways to reduce dependence on fossil resources: first, by reducing energy consumption by applying energy saving programmes focused on energy demand reduction and energy efficiency in the industrial and domestic spheres [10]; and second, by encouraging the cultivation of renewable energy, as this is an effective practical choice to reduce carbon emissions In 2007, the Authority for Electricity Regulation (AER) Oman announced that it would carry out a study in the fie renewable energy. The purpose of this study was to provide an overview of renewable energy sources in the Sultanate of Oman and the potential of these resources for electricity IJRET: International Journal of Research in Engineering and Technology eISSN: 2319 __________________________________________________________________________________________ 2013, Available @ http://www.ijret.org partial privatisation of power generation may indirectly increase the cost of energy supply to the consumer instead of least cost generation in a regulated environment. at the rural and remote areas are grid diesel or petrol Figure 1 shows the electricity tariff structure in Oman for different types of customers. f structure 4. RENEWABLE ENERGY IN OMAN Renewable energy usually refers to those energies that do not pollute the environment and that can be recycled in nature. International experts have now categorised renewable energy renewable energy. The traditional type includes giant hydropower and biomass burnt directly; the new renewable energy mainly refers to small hydropower, solar energy, wind energy, biomass energy, geothermal energy velopment has led to increased energy requirements in the markets. However, the fossil fuel resources required for the generation of energy are insufficient. Moreover, fossil fuels directly affect climate bon emissions on the . There are two main ways to reduce dependence on fossil resources: first, by reducing energy consumption by applying energy saving programmes focused on energy demand reduction and energy efficiency in the industrial and ]; and second, by encouraging the cultivation of renewable energy, as this is an effective and In 2007, the Authority for Electricity Regulation (AER), announced that it would carry out a study in the field of renewable energy. The purpose of this study was to provide an overview of renewable energy sources in the Sultanate of Oman and the potential of these resources for electricity production. The study assessed the available renewable energy technologies and their technical suitability for use in the Sultanate. The study summarised the energy sources in Oman are these are the most abundant resources in the Sultanate. It also recommended the implementat feasibility study for electrical production using solar energy of 100–200 MW. This study was published in 2008 [1 The level of solar energy density in Oman is among the highest in the world. There is a significant opportunit develop solar energy resources throughout Oman and to provide sufficient electricity to meet all of Oman’s domestic electricity requirements. High solar energy density is available in all regions of Oman, and it significantly increases during the summer season, which coincides with the peak periods of electricity demand in Oman. The areas of highest density are dessert areas, while the coastal area in the southern part of Oman has the lowest density. The high ratio of sky clearness, at about 342 days and the geographical location of Oman play an important role in creating the huge potential for solar electricity generation. The studies also show several locations in Oman with good projections for utilising wind energy for electricity produc For example, wind speeds in Dhofar, particularly in the mountains north of Salalah, are comparable to the recorded wind speeds at different production sites for electric wind power in Europe. Adel Gastli and Yassine Charabi [1 the land in Oman receives solar radiation ranging between 5500–6000 Wh/m2 /day and 2500 January, respectively. However, solar radiation has critical environmental risks, mainly related to mineral dust deposition that can greatly reduce the profits of any solar energy system. The movement of a mineral dust particle, according size and speed, is an efficient erodible agent that can affect the optical properties of any solar energy system; this means that it will require frequent cleaning using fresh water, which can be difficult because of the general scarcity of fre the desert and semi-desert zones. This commodity should not be wasted on cleaning. degree of contamination from mineral dust and tracked the exposure to dust constraint on the local scale using proxy open source data, considering recent NASA satellite data from the Multi-angle Imaging Spectro provides significant information about dust emission, transport, concentration and property evolution using Aerosol Optical Depth (AOD) [13]. They used MISR AOD data sets to appraise the dust risk map for solar energy system sitting and implementation in Oman. The suggested approach is very practical in pointing out the degree of contamination with dust in space and time. Consistent results between eISSN: 2319-1163 | pISSN: 2321-7308 __________________________________________________________________________________________ 215 production. The study assessed the available renewable energy s and their technical suitability for use in the Sultanate. The study summarised the potential renewable are solar energy and wind energy, as these are the most abundant resources in the Sultanate. It also recommended the implementation of pilot projects and a feasibility study for electrical production using solar energy of 200 MW. This study was published in 2008 [11]. The level of solar energy density in Oman is among the highest in the world. There is a significant opportunity to develop solar energy resources throughout Oman and to provide sufficient electricity to meet all of Oman’s domestic electricity requirements. High solar energy density is available in all regions of Oman, and it significantly increases during er season, which coincides with the peak periods of electricity demand in Oman. The areas of highest density are dessert areas, while the coastal area in the southern part of Oman has the lowest density. The high ratio of sky clearness, at about 342 days per year, and the geographical location of Oman play an important role in creating the huge potential for solar electricity generation. The studies also show several locations in Oman with good projections for utilising wind energy for electricity production. For example, wind speeds in Dhofar, particularly in the mountains north of Salalah, are comparable to the recorded wind speeds at different production sites for electric wind Adel Gastli and Yassine Charabi [12] found the majority of the land in Oman receives solar radiation ranging between /day and 2500–3000 Wh/m2 /day in July and January, respectively. However, solar radiation has critical environmental risks, mainly related to mineral dust deposition that can greatly reduce the profits of any solar energy system. The movement of a mineral dust particle, according to specific size and speed, is an efficient erodible agent that can affect the optical properties of any solar energy system; this means that it will require frequent cleaning using fresh water, which can be difficult because of the general scarcity of fresh water in desert zones. This commodity should not Furthermore, they also studied the degree of contamination from mineral dust and tracked the exposure to dust constraint on the local scale using proxy open recent NASA satellite data from the angle Imaging Spectro-Radiometer (MISR). MISR provides significant information about dust emission, transport, concentration and property evolution using Aerosol ]. y used MISR AOD data sets to appraise the dust risk map for solar energy system sitting and implementation in Oman. The suggested approach is very practical in pointing out the degree of contamination with dust in space and time. Consistent results between dust emission sources, MISR AOD
  • 5. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308 __________________________________________________________________________________________ Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 216 and the climate synoptic conditions indicate that large areas of Oman are highly affected by mineral dust, in terms of the concentration and occurrence of dust storm events throughout the year, and due to their proximity to emission sources they are not suitable for the implementation of solar energy systems. So, it is possible to conclude that areas with high dust concentrations are not suitable for solar energy applications because they would require more frequent cleaning and therefore consume large amounts of water. As a result, it is important to include the annual average AOD as an important constraint during the sitting of solar energy systems. In a case study on Oman, when they considered this constraint it gave a reduction of 64% from the most suitable areas. Moreover, they are using GIS-based spatial fuzzy multi- criteria evaluation to assist the solar energy resource and site suitability for large PV farms implementations. This will be affected by different factors, which are classified in three main categories: technical, economic and environmental. These factors depend on the geographical location, biophysical attributes and socio-economic infrastructure of the country under study [14]. They developed the first geographical mapping models to locate the most appropriate sites for different PV technologies in Oman using MCA. They combined the different weights of all the factors listed above. The most isolated areas were predisposed to high suitability. They found that all types of PV technologies can produce huge amounts of electricity in Oman. They also made a GIS assessment of a large CSP plant in Duqum in Oman using GIS tools [15]. They calculated the solar radiation on a DEM using Arc Map. They found that the highest solar radiation per day was 8217 Wh/m2 /day during the month of June (summer solstice) and the lowest one was 4059 Wh/m2 /day in December (winter solstice). They also worked with Slim Zekri to investigate the potential for implementing combined electric power and seawater desalination plants using concentrated solar power technologies for Wilayat Duqum in Oman [16]. They concluded that seawater desalination will have a major share on freshwater supply that will be reasonable for Duqum in particular and Oman in general. Moreover, if concentrating solar power (CSP) is used for an energy supply, it will be a domestic energy source and will not have a major environmental impact. It was found that the amount of solar radiation in the Duqum region is very promising, and if CSP is used, it will help provide a sufficient amount of both electricity and desalinated water. Based on GIS solar radiation calculations, geographical topology and the master development plan of the Duqum region, the most appropriate site for a CSP plant is in close proximity to the coast in an industrial area. In [17], they developed a Matlab/SIMULINK for the solar PV cell modules and array. The model is based on the fundamental circuit equation of a solar PV cell, taking into account the effects of physical and environmental parameters, such as the solar radiation, and validated experimentally using the highly efficient PVL-124 solar laminate panel. This model would provide a tool for predicting the behaviour of a solar PV cell, module and array under climate and physical parameter changes and also as a photovoltaic generator in the framework of the Sim-power-System Matlab/SIMLINK toolbox in the field of solar PV power conversion systems. In [18], they assessed wind power cost per kWh of energy produced using four types of wind machines at 27 locations on an hourly basis from 2000–2009. The study found that the energy cost is low in the southern and middle region of Oman and high in the northern region. It also developed wind duration curves for 27 locations, which is beneficial in finding the duration and availability of the wind in different areas in terms of the useful range of wind speed. However, in [19], they investigate five years of hourly wind data from 29 weather stations. They used different criteria, including theoretical wind power output, vertical profiles, turbulence and peak demand fitness. They acknowledged the potential location for wind energy applications in Oman. They considered air density and roughness length when calculating the wind power density potential. Moreover, they used a seasonal approach to identify the potential in different seasons. They introduced a scoring approach in order to classify the potential sites based on five factors: wind power output factor, vertical profile factor, wind speed turbulence factor, wind diurnal variation factor and peak demand fitness factor. In [20], they evaluated the performance of the Numerical Weather Prediction (NWP) model data for wind energy application in Oman with a comparison to satellite data. Moreover, they used a nested ensemble NWP approach, which leads to more accurate resource assessment, wind turbine micros ting and short-term energy forecasting. In [21], they implemented the NWP models and the multi- criteria decision technique (MCDM) on Masirah Island as a case study. The resource assessment of the island was based on the mean wind speed and wind power distribution over the entire island at different heights. They scored the locations using MCDM model across the island based on their suitability for wind energy applications. A wind farm land suitability index using multi-criteria analysis was applied, and it consisted of a set of alternative locations and a set of selection criteria. Using the analytical hierarchy process with an ordered weight averaging (AHP-OWA) aggregation function they derive the wind farm land suitability index.. Different selection criteria, such as distance to road, terrain slope, urban area, historical locations, wildlife and natural reserves, wind power density, energy demand matching, percentage of sustainable wind, turbulence intensity and sand dunes were considered.
  • 6. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308 __________________________________________________________________________________________ Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 217 5. ISSUES AND BARRIERS TO RE DEPLOYMENT Renewable Energy technologies possess many long-term benefits that are often overlooked. These benefits include energy security, job creation, business opportunities, sustainable development and prevention of global warming [22]. Advancing of RE development is an effective approach for addressing energy security and climate change. Currently, the U.S., Japan, Brazil and other countries have listed the development of RE as an important strategy for the future [23]. Most research in Brazil on renewable energy policy evolution is related to the evolution of biomass energy policies, while research in Russian renewable energy policy evolution is insufficient and limited to policies on the diffusion and transfer of renewable energy technologies. In China, research is focused on two aspects: assessing the effect of implementation based on the type of policy and analysing renewable energy evolution policies according to energy types [24]. RE development is dependent on political support. As long as RE is not financially and economically competitive in the liberalised market, there is a need for political support. However, this energy is expected to become progressively cheaper in the near future. A positive investment climate, strong property rights and low tax regimes, with established participation in the power sector from leading international firms, will certainly provide more incentives for RE applications in the country. It is important to receive non-renewable energy policy support. In addition, laws governing power generation regulation shall provide more flexibility and incentives for RE. For instance, the government needs to develop policies to support investors in large-scale solar plants and also to support/increase market opportunities for small-scale solar photovoltaic applications. Furthermore if the development of the appropriate regulatory and financial framework is not accelerated, neighbouring countries, such as the United Arab Emirates (UAE), may capture first-mover advantages and develop regional expertise because of their recently announced subsidies and incentives for solar photovoltaic installations [25]. Therefore it is urgently recommended that efficient local, regional and international networking capabilities should be established in order to benefit from others best practices and to acquire knowledge and expertise faster and more efficiently. Also, a local research and development infrastructure has to be established and developed, which will involve collaboration between different constituents, including academia, industry and government. The deployment of renewable energy in Oman has grown up in a very slow pace for the past few years. This is related to the fact that there are no clear plans for the future of energy in Oman, as there is no strategic plan for renewable energy, nor is there a clear target. Following are some of the reasons for the slow RE development in Oman: Lack of coordination and consistency in policy Since the first study done by PDO in 2000 [6], there has been no progress, and there has only been one new study, in 2008, by the Authority for Electricity Regulation [11]. The country has been slow in implementing the recommendations of the 2008 study. This is because the responsibility for Oman renewable energy business goes to many sectors, such as Petroleum Development Oman (PDO), the Authority of Electricity and Water, the Authority for Electricity Regulation, Oman Power and Water Procurement and the RAECO. This makes it difficult to provide consistent energy policies. Furthermore, energy policies in different fields lack coordination, making it difficult to form an effective long-term system to support sustainable RE development. No encouragement for RE The government has developed policies in renewable energy in 2008, but it is still unable to compete with fossil energy and its development depends upon the government support. The government provides subsidies for fossil energy has hampered the development and support of RE. In order to promote RE, a research task could be commissioned to establish in greater detail the locations and strengths of local wind and solar resources. A task force or forum might bring together experience and ability to provide a powerful initiative. It would be a prestigious body through which Oman would be able to develop its own renewable energy resources and gain international recognition in this growing world business sector. No financing system for renewable energy projects There is a high initial unit cost of equipment and maintenance, as a result of small initial order sizes, novel equipment, and the small number of units in the field to maintain. The industry could be kick started with funding for the necessary equipment, working capital, and initial overheads. Experienced management would be needed. Inadequate investment in technical research and development for renewable energy Renewable energy is a technique-intensive and fund-intensive industry. It is a requirement for stable and rapid development. By the end of 2011, there had been no investment in renewable energy allocated in the budget. A training programme for all levels of design and operation might be established to focus on the operation and support of immediately deployable technologies (of small-scale PV and wind-powered water pumping). This programme might then be expanded to provide the research, development and
  • 7. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308 __________________________________________________________________________________________ Volume: 02 Issue: 07 | Jul-2013, Available @ http://www.ijret.org 218 Regulatory Policies Public FinancingFiscal Incentives Feed-in Tariff Utility Quota Obligation Net Metering Obligation and Mandate Tradable Renewable Energy Certificate (REC) Capital Subsidy, Grand or Rebate Tax Incentives Energy Production Payment Public Investment, Loans or Grants Public Competitive Bidding demonstration capabilities needed to support a developing business sector. This design and development capability might also be applied to providing a demonstration and testing service for international manufacturers. 6. WAY FORWARD With its strong solar resources and existing universities, Oman has an opportunity to establish a world position through the provision of a professional demonstration and monitoring capability for international technology providers, as well as to carry forward the further development of relevant technologies. Such an initiative would involve the development of an advanced professional skills base in science and engineering. It might logically be expanded to provide a specialisation in modern solar-efficient architecture and energy management. The success of the RE deployment by the Oman’s government will depend on how well the regulatory policies, fiscal incentives and the Public Financing are being carried out as shown in Figure 2. Fig -2: The renewable energy policy network (REN21) 7. CONCLUSION There is an great opportunity for Oman to utilise renewable energy for commercial advantage, as solar and wind energy technologies in particular can achieve more competitive costs. The effective use of these technologies would require the development of a suitable skills base and provide the opportunity to develop a local level of manufacturing, each involving an increase in the level of skilled employment. It would contribute to the extension and diversification of both the economy and energy sources. It would be in line with the objectives of Oman Vision 2020. It would also help Oman establish a world position in this energy sector by providing a professional demonstration and monitoring capability for technology providers, as well as helping to carry forward the development of relevant technologies. REFERENCES [1]. Ministry of National Economy, Oman. Final Results of Census 2010. Supreme Council for Planning, National centre for Statics and Information 2010. http://www.moneoman.gov.om/viewPublication.aspx?i d=781. [2]. Ministry of National Economy, Oman. The development experience and investment climate, 6th edition. National Centre for Statics and Information 2008. http://www.moneoman.gov.om/PublicationAttachment/ Oman [3]. Mine Tukenmez and Erhan Demireli. (2012), ‘ Renewable energy policy in Turkey with the new legal regulations’ , Renewable Energy, Vol. 39, pp. 1-9 [4]. Zhang P, Yang Y, Shi J, Zheng Y, Wang L, Li X. Opportunities and challenges for renewable energy in China. Renewable and Sustainable Energy Reviews 2011;13:439-449 [5]. Authority of electricity regulation, Oman (Annual Reports).2009; http:/www.aer-oman.org. [6]. Buckley JR, Holmes EB. Oman renewable energy for sustainable development, Sustainable Energy Marketing Company – Oman’s planning Vision 2020. PDO executive summary 2000. [7]. Authority of electricity regulation, Oman. Annual Report, 2010; http://aer-oman.org. [8]. Authority of electricity regulation, Oman. Annual Report, 2011; http://aer-oman.org/ index.php? option=com_content&view=article&id=87&Itemid=14 6 [9]. Public Authority for Electrical and Water, Oman. Renewable energy in Oman ,summary report,2012; http://www.paew.gov.om. [10]. Banos R, Manzano-Agugliaro F, Montoya FG, Gil CI, AlCayde A, Gomez J. Optimization methods applied to renewable energy and sustainable energy: A review. Renewable and Sustainable Energy Reviews 2011;15:1753–1766. [11]. Authority of electrical regulation, Oman. Renewable energy resources in Oman. 2008. http://aer-oman.org. [12]. Al-Yahyai S, Charabi Y, Gastli A, Al-Alawi S. (2010), ‘ Assessment of wind energy potential locations in Oman using data from existing weather stations’, Renewable and Sustainable Energy Reviews 2010;14:1428–1436. [13]. Gastli A, Charabi Y. Solar electricity prospects in Oman using GIS-based solar radiation maps. Renewable and Sustainable Energy Reviews 2010;14:790–797. [14]. Charabi Y, Gastli A. Spatio-temporal assessment of dust risk maps for solar energy systems using proxy data. Renewable Energy 2012;44:23–31.
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