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Study on Renewable Energy Resources, Oman - authority for ...

Study on Renewable Energy Resources, Oman - authority for ...

Renewable Energy Resources in Oman 2.2.4 Electricity production costs In this section we present an analysis of production costs of natural gas fired plant, diesel plant and new coal fired power stations. We also present estimates of the electricity production costs of renewable energy technologies proposed for Oman. Table 2.1 Production Costs of Conventional Fossil Fuel Plants Natural Gas Fired Production Costs: (average costs including capital, operating and fuel costs): USD/MWh RO/MWh existing MIS connected gas fired production facilities (average 2006 costs) 31 11.9 new Combined Cycle Gas Turbines 18 7.1 new Open Cycle Gas Turbines 24 9.1 These costs are long run marginal costs based on a gas price of 1.5 USD /MMBtu. Diesel Fired Production Costs: (average costs including capital, operating and fuel costs): USD/MWh RO/MWh existing RAEC facilities (average 2006 costs) 210 80.8 new Diesel plant 161 61.9 These production costs are based on a fuel price of 146 Baiza per Litre diesel fuel. New Coal Fired Production Costs: (average costs including capital, operating and fuel costs): USD/MWh RO/MWh production cost based on 62 USD/tonne 41 15.8 production cost based on 100 USD/tonne 53 20.5 production cost based on 150 USD/tonne 69 26.7 Coal prices have risen sharply in recent months due to problems in major supply markets and increasing demand. As a sensitivity we present the total production cost of a coal facility assuming coal costs of 62 US$/tonne, 100 US$/tonne, and 150 US$/tonne. Page 18 of 134 .

Renewable Energy Resources in Oman The production costs today of electricity generated by renewable energy technologies using renewable energy resources in Oman are shown in Table 2.2. Table 2.2 Production Costs of Renewable Energy Technologies Renewable Energy Production Costs: (average costs including capital and operating costs): USD/MWh RO/MWh solar PV, small grid connected 425 163.5 PV/diesel hybrid system, 10% solar energy 245 94.2 solar PV, large grid connected 250 96.2 solar thermal plant 207 79.6 grid connected wind farm (Thumrait) 74 28.3 Comparison of fossil fuel and renewable energy production costs Figure 2.1 compares the production cost of electricity produced using conventional fossil fuel technology and renewable energy resources. Fig. 2.1 Long Run Production Costs: Fossil Fuel & Renewable resources 1). Baisa/kWh 163.5 96.2 94.2 79.6 61.9 9.1 26.5 19.3 28.5 15.8 34.1 28.3 GT (gas cost $1.5 mmBTu) 140MW GT (gas cost $6 mmBTu) 140MW CCGT (gas cost $6 mmBTu) 400MW Heavy Fuel Oil 300MW Coal Steam 1000MW New Diesel Unit 1MW Small PV Grid connected 20 KW Large PV Grid connected 20 MW Solar Thermal 20 MW Small hybrid PV‐Diesel system 10kW Wind Farm Joba area 20MW Wind Farm Thumrait area 20MW Fossil Fuel Generation Renewable Energy Resources 1) Assumptions: 1) Fuel costs: Natural gas low gas price 1.5 USD/MMBtu, high gas price 6 USD/MMBtu Diesel Oil 0.38 USD/Litre Coal 62.45 USD/ton, HFO 50 USD/barrel 2) Station life (in cost calculations): Gas (GT & CCGT) 25 years, HFO, Coal & new Diesel 30 years, PV 25 yrs Wind >20 years 3) Operating hours: GT, CCGT, HFO & Coal 7500 hours, New Diesel 5000 4) Discount rate: 7.55% Page 19 of 134 .

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