Answer Happy

The Moss Landing power station near Monterey is a natural gas combined-cycle plant with an electrical capacity of 1050 MWe and an average heat rate of 7200 Btu/kWh. Assume an annual capacity factor of 70%. (24 points) a. What is the thermal efficiency of the power plant? b. How many hours per year is the plant operated? (Assume it operates at rated capacity). c. How much electrical energy is produced in a year, in MWh? d. How much natural gas is used per year, in MBtu and ft'? e. How much CO2 is emitted by the plant in a year, in metric tonnes? f. By how much would a carbon tax of $50/tonne CO2 increase electricity cost, in S/kWh? g. How much waste heat is produced each day on average, in MBtu/d? h. If 20% of the waste heat goes up the smokestack and the rest is transferred to the plant's once-through cooling system that draws water from Elkhorn Slough and returns it to the slough 5°C warmer, how many m' of cooling water are required per day?