(b) A 10-MW gas-turbine plant with a heat rate of 8000 kJ/kWh operates with a 60-% capacity factor. Natural gas fuel cur

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B A 10 Mw Gas Turbine Plant With A Heat Rate Of 8000 Kj Kwh Operates With A 60 Capacity Factor Natural Gas Fuel Cur 1 (49.33 KiB) Viewed 34 times

(b) A 10-MW gas-turbine plant with a heat rate of 8000 kJ/kWh operates with a 60-% capacity factor. Natural gas fuel currently costs K100 per million kJ. Annual O&M is 8 Ngwee/kWh. The capital cost of the plant is K12,000/kW. The utility uses a fixed charge rate of 0.12/yr. Fuel and O&M costs escalate at 8%/yr and the utility uses a discount rate of 20%/yr over the 25-year life of the plant. Determine the following: (i) annualised capital cost of the plant (K/yr); [4 marks] (ii) initial annual fuel and O&M cost (K/kWh); [4 marks] (iii) levelised annual fuel and O&M cost (K/kWh); [6 marks] (i) levelised bus-bar cost of electricity for the plant. [2 marks]