1.) A typical 2 m2 solar panel produces 250 W of power and costs $200. Assuming
ID: 990974 • Letter: 1
Question
1.) A typical 2 m2 solar panel produces 250 W of power and costs $200. Assuming a capacity factor of 25% (i.e. good sunshine for 6 hours per day), how much would it cost to replace the 280 MW coal plant that produces electricity for a city?
a.) Less than a million b.) Between $1 and $10 Million c.) Between $10 and $100 Million d.) Between $100 Million and $1 Billion e.) More than 1 Billion
2.)How many 4.5 MW windmill would it take to replace the 280 MW power plant that produces electricity for a city? Assume a capacity factor of 30% (i.e. the wind blows adequately 30% of the time).
a.) Fewer than 100 b.) 100-250 c.) 250-1000 d.)1000-10,000 e.) more than 10,000
Explanation / Answer
1) If a typical 2 m2 solar panel produces 250 W of power and costs $200. Assuming a capacity factor of 25% the cost to replace the 280 MW coal plant that produces electricity for a city would be,
a) Less than a million
2) The number of 4.5 MW windmills needed to replace a 280 MW power plant is,
b) 100 - 250
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