Suppose that coal costs $45/ton at the power plant, fuel oil costs $60/bbl (1 bbl has appoximately 6?106 Btu = 6 MMBtu), and natural gas costs $0.5/therm (1 therm = 1?105 Btu = 100 MBtu). Using data from P1.15, calculate the annual fuel bill for 1000 MW coal fired, fuel oil fired, and natural gas fired plants at these prices, and express the fuel bill in cents/kWh of electric power output. How does this compare with our local consumer electric energy cost of 12.6 cents/kWh?