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August 28, 2021

Somerset County-Meyersdale – BESS, US

By Carmen

The Somerset County-Meyersdale – BESS is an 18,000kW energy storage project located in Somerset County, Pennsylvania, US.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2015 and was commissioned in 2015.


The Somerset County-Meyersdale – BESS is owned by NextEra Energy Resources (100%), a subsidiary of NextEra Energy Capital Holdings.

The key application of the project is frequency regulation.

Contractors involved

NextEra Energy Resources has delivered the battery energy storage project.

Additional information

Meyersdale Storage is a wholly-owned direct subsidiary of ESI Energy LLC, which is part of NextEra Energy Resources LLC, which is a unit of NextEra Energy. Meyersdale Storage will own and operate an 18 MW energy storage system located in Somerset County, Pennsylvania. The facility will operate within the PJM Interconnection market, and interconnect with Pennsylvania Electric’s 115kV Davis substation Meyersdale Storage also filed a Sept. 2 application with FERC for market-based rate authority. Meyersdale Storage, a Delaware limited liability company, will own and operate an 18 MW energy storage system located in Somerset County, Pennsylvania. The Facility will interconnect with Pennsylvania Electric Company’s 115kV Davis substation and is currently scheduled to be energized on or after November 5, 2015, in order to begin the sale of test power. The Facility’s commercial operation is expected to begin in December, 2015. The entire output of the Facility will be sold into PJM’s market.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.

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