Suppose a utility generates electricity with a 32% efficient coal-fired power plant that emits SO at...

 

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Suppose a utility generates electricity with a 32% efficient coal-fired power plant that emits SO at the legal limit of 0.6 lb per million Btu of heat into the plant. If the utility customers replace their 75-W incandescent light bulbs with 18-W compact fluorescent lamps (CFL), (a) over the 10,000-hr lifetime of each CFL, how many kW.hr of electricity is saved? (b) how much SO is not emitted due to this change? (c) how much would the utility save per CFL if it can sell its right to emit SO at the price of $800 per ton, given that there are 2,000lb in a ton. [570 kW.hr; 3.65 lb; $1.44] Suppose a utility generates electricity with a 32% efficient coal-fired power plant that emits SO at the legal limit of 0.6 lb per million Btu of heat into the plant. If the utility customers replace their 75-W incandescent light bulbs with 18-W compact fluorescent lamps (CFL), (a) over the 10,000-hr lifetime of each CFL, how many kW.hr of electricity is saved? (b) how much SO is not emitted due to this change? (c) how much would the utility save per CFL if it can sell its right to emit SO at the price of $800 per ton, given that there are 2,000lb in a ton. [570 kW.hr; 3.65 lb; $1.44]