3. A) Determine what the average annual electrical capacity factor is for the US

Question

3.

A) Determine what the average annual electrical capacity factor is for the USA electric supply system. Use the net summer generating capacity (nominally 1050 gigawattts, 1050E9 watts) as that which is available (for purposes of calculating the net capacity factor), and the total power generated throughout the year, 4.1E12 kWh.

B) Determine the capacity factor for the nuclear system last year, which generated 798E9 kWh from the 99 operating plants with a total capacity of 99,629 MW 0f installed capacity

Explanation / Answer

3.

A)

capacity factor = Power generated annually / Power available if plant is run for whole year

= 4.1 x 10^12 / (1050 x 10^9 x 365 x 24)

= 4.457 x 10^-4 = 4.457 x 10^-2 %

= 0.04457 %

B)

CF = 798 x 10^9 / (99 x 99629 x 10^6 x 365 x 24) = 9.23 x 10^-6

= 9.23 x 10^-4 %

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