U.S. Solar Capacity Factors

U.S. Solar Capacity Factors

The U.S. EIA posted a nice brief today showing that, for the years 2014-17, the capacity factor for utility-scale solar  was 24.7% Below are three additional figures I recently complied along these same lines. A summary point is that, on a generation and capacity factor basis, the solar resource is better utilized at the utility-scale.

In 2018, 83.2% of U.S. solar generation originated in nine states, largely associated with where the solar resource is geographically available. California accounted for 40.6%.

The 2017 capacity factor for small scale residential solar (<1 MW) was 18.3%. This figure gives the monthly capacity factors and summarizes the number of hours, by month and for the year, that residential solar is stranded.

The 2017 capacity factor for utility-scale solar (>1 MW) was 27.5%/ This figure gives the monthly capacity factors and summarizes the number of hours, by month and for the year, that utility-scale is stranded.

…ilyh…

 

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