A- Small electricity market has a demand varies between 300 and 600 MW with a required 200 MW minimum spinning reserve. The table shows the characteristics of the available four generating units. ~ 3 Units 1 2 3 1- Find the optimal dispatch of energy and reserve among generating units for a given range of values of the demand A 2- Specify the energy and reserve prices during each load level. 3- Calculate the total profits gained by each generating unit participating in the market. Marginal cost of energy ($/MWh) 5 15 20 30 Marginal cost of reserve ($/MWh) 0 0 4 8 Max. output capability (MW) 200 250 250 250 Max. reserve capability (MW) 0 150 200 150