The energy requirement of a region is given by the annual adjusted load curve at 250 MW points given below. There are two raw energy sources in the region, a water and a lignite coal. The reserve coefficient for the region will be taken as 1.2. The flow of the water source is 620m³/s and its head is 118 m. Friction loss in penstock will be taken as 8m.

 

a) Calculate the powers of water and steam plants separately. Discuss if the water plant meets the peak power.

b) Find the cost price of energy in power plants.

c) Find the average energy price in the region.

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98 95 P(MW) 0,2 0,5 0,7 0,9 +(somon) 1.0 (1 year) unit facility costs ($/kw) unit capital cost (%) power plant efficiency (%) lower heat value of fuel. fuel price steam power plant 8600 12 42 1/3800 (tcal/kg) ($/ton) 480 water plant 5200 98 95 P(MW) 0,2 0,5 0,7 0,9 +(somon) 1.0 (1 year) unit facility costs ($/kw) unit capital cost (%) power plant efficiency (%) lower heat value of fuel. fuel price steam power plant 8600 12 42 1/3800 (tcal/kg) ($/ton) 480 water plant 5200