Electricity capacity share in the U.S. by region

In 2022, the Southeastern Electric Reliability Council (SERC) accounted for approximately 29.1 percent of the United States' electricity generation capacity. The Western Electricity Coordinating Council (WECC), located in the country's western region, ranked second, responsible for 19.4 percent of the country's capacity.

Distribution of electricity generation capacity in the United States in 2023, by region

Characteristic	Electricity generation capacity
SERC	29.06%
WECC	19.44%
RFC	19.29%
ERCOT	11.02%
SPP	6.75%
NPCC	6.7%
MRO	6.59%
U.S. Territories	0.63%
HCC	0.26%
ASCC	0.26%

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Release date

May 2023

More information

Region

United States

Survey time period

2023

Special properties

only including utility-scale capacity

Supplementary notes

Regions defined by the North American Electric Reliability Corporation as follows:
ASCC: Alaska Systems Coordinating Council
ERCOT: Electric Reliability Council of Texas
FRCC: Florida Reliability Coordinating Council
HCC: Hawaii Coordinating Council
NPCC: Northeast Power Coordinating Council
MRO: Midwest Reliability Organization
RFC: Reliability First Corporation
SERC: Southeastern Electric Reliability Council
SPP: Southwest Power Pool
WECC: Western Electricity Coordinating Council

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