One Steam and hydraulic power plant to meet the energy needs of a region
we have running in parallel. The annual load curve of the energy produced in the power plant is given in Figure-1 and the characteristics of the power plants are as follows:
Steam Power Plant Hydraulic power plant

Plant installed power cost ($/kW): 1752 3723
Capital cost ( % ): 10 8
Fuel efficiency (%): 40 --
Fuel price ($/ton): 500 --
Fuel bottom thermal value(kcal/kg) : 6500 --
The hydraulic power plant is operated as a” basic load " power plant. According to them;
a) Unit energy cost for each power plant,
b) Find the average energy cost by“$/kWh ” unit.

 

P(MW) 90 steam power plant 60 hydroelectric power station 10 t(saat) 0.6 1 8760