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5 pts 1. In 2020, a NPP was operated at full power for 250 days, at 80% of full power for 75 days, and shut down for 40 days for refueling and maintenance. What was its capacity factor for the year 2020? Ans. 310/365 2. A 500-MW(e) coal plant burns 2x10 kg coal in one year when operated at a CF of 0.55. Heat value of the coal is 2500 kcal/kg, and 1 cal = 4.184 J. 4 pts (a) How much electricity does it produce in 6 months with CF=0.55? Ans. 137.5 MWyrce) 11 pts What is the thermal efficiency (nth) of this plant? Ans. 0.4145 (b)