U.S. capacity in interconnection queues by source 2021

In 2021, the generation, storage, and hybrid electricity capacity in interconnection queues in the U.S. amounted to some 1.44 terawatts. This figure represents an increase of nearly one terawatt when compared to the beginning of the decade. Solar and solar hybrid projects had the highest capacity in queues in 2021, at 390 and 280 gigawatts, respectively.

Generation, storage, and hybrid electricity capacity in interconnection queues in the United States in 2010 and 2021, by source (in gigawatts)

Characteristic	Natural gas	Wind	Solar	Solar (hybrid)	Battery (hybrid)	Battery	Other
-	-	-	-	-	-	-	-
-	-	-	-	-	-	-	-

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Release date

April 2022

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Region

United States

Survey time period

2010 and 2021

Supplementary notes

According to the source, interconnection queue data through the end of 2021 was compiled for seven independent system operators (ISOs) and 35 utilities, serving about 85 percent of all U.S. electricity load.
Only projects listed in queue records as "active" were included. Projects listed as "online", "withdrawn" or "suspended" were excluded.
For hybrid projects that include storage, only the generator capacity is included.

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