The Martinsville Battery Energy Storage System is a 9,000kW energy storage project located in Martinsville, Virginia, US. The rated storage capacity of the project is 15,600kWh.

The project will be commissioned in 2021.

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The Martinsville Battery Energy Storage System is being developed by AEP OnSite Partners. The project is owned by AEP OnSite Partners (100%).

The key applications of the project are frequency regulation and reduce transmission and capacity peak values.

Contractors involved

AEP OnSite Partners is the owner. AEP OnSite Partners is the developer. Wartsila is the technology provider for the project.

Wartsila is the EPC contractor for the project.

Additional information

Wartsila GridSolv Quantum energy storage system will serve the City of Martinsville in Southern Virginia, reducing transmission and capacity peak values while also participating in PJM Interconnection frequency response market opportunities.

About AEP OnSite Partners

AEP OnSite Partners is engaged in renewable energy investments.


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.