PJM Interconnection has the largest capacity of large-scale battery storage installations in the United States. As of 2019, it owned a total of 302 megawatts. PJM Interconnection has facilities throughout the states of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia. The second highest power capacity in large-scale facilities was seen in the California Independent System Operator region, at 199 megawatts.
* The source adds:
Large‐scale refers to systems that are grid connected and have a nameplate power capacity greater than 1 MW.
ISOs and RTOs are independent, federally regulated non‐profit organizations that ensure reliability and optimize supply and demand bids for wholesale electric power.
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EIA. (August 16, 2021). Power capacity of large-scale battery storage installations in the United States as of 2019, by region* (in megawatts) [Graph]. In Statista. Retrieved December 30, 2024, from https://www.statista.com/statistics/1135361/battery-storage-capacity-region-us/
EIA. "Power capacity of large-scale battery storage installations in the United States as of 2019, by region* (in megawatts)." Chart. August 16, 2021. Statista. Accessed December 30, 2024. https://www.statista.com/statistics/1135361/battery-storage-capacity-region-us/
EIA. (2021). Power capacity of large-scale battery storage installations in the United States as of 2019, by region* (in megawatts). Statista. Statista Inc.. Accessed: December 30, 2024. https://www.statista.com/statistics/1135361/battery-storage-capacity-region-us/
EIA. "Power Capacity of Large-scale Battery Storage Installations in The United States as of 2019, by Region* (in Megawatts)." Statista, Statista Inc., 16 Aug 2021, https://www.statista.com/statistics/1135361/battery-storage-capacity-region-us/
EIA, Power capacity of large-scale battery storage installations in the United States as of 2019, by region* (in megawatts) Statista, https://www.statista.com/statistics/1135361/battery-storage-capacity-region-us/ (last visited December 30, 2024)
Power capacity of large-scale battery storage installations in the United States as of 2019, by region* (in megawatts) [Graph], EIA, August 16, 2021. [Online]. Available: https://www.statista.com/statistics/1135361/battery-storage-capacity-region-us/
