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If you measure installed “small-scale solar” per capita, says the federal Energy Information Agency, you’ll find five of the six New England states in the top 10.

No prizes for guessing who is left out. CleanTechnica article is here.

EIA says national capacity of small-scale solar (installations of less than 1 megawatt) grew by 6,400 megawatts (6.4 gigawatts) in 2022, the most ever, to a total of 39.5 gigawatts. It estimates that this makes up a third of the country’s total photovoltaic installation.

How much is that? Let’s check our handy-dandy Seabrook metric.

A megawatt of solar produces roughly 1,450 megawatt-hours of electricity a year (that number varies a lot, of course). So 39.5 gigawatts or 39,500 megawatts of rooftop solar will produce 57.7 million megawatt-hours of electricity annually.

Seabrook Station nuke plant generates about 10 million megawatt-hours a year.

So over the course of the year, the nation’s rooftop solar produces as much electricity as 5 1/2 Seabrook Station-sized nuclear power plants. That’s a lot but it’s also not much, depending on your point of view.

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