Ameresco and Atura Power JV selected to build 250 MW BESS

Cleantech integrator Ameresco, Inc. has announced that its joint venture has been selected to build a 250 megawatt (MW), 1,000 megawatt hour (MWh) battery energy storage system (BESS) in partnership with Atura Power, a subsidiary of Ontario Power Generation.
Ameresco and Atura Power JV selected to build 250 MW BESS
Courtesy of NREL.

Ameresco was selected by the Independent Electricity System Operator (IESO) in Canada. The company will complete the project with Atura Power through a joint venture (JV) known as the Napanee BESS Inc, entering into a twenty-year capacity agreement with the IESO. In addition to being a 10.1 percent minority partner in the Napanee BESS Inc. JV, Ameresco will provide Engineering and Construction (E&C) solutions and expertise for the installation of the BESS under separate contract with the JV.

The JV is looking forward to pursuing additional BESS opportunities throughout Ontario. The collective projects makeup the largest award of BESS in Canada's history, and the energy generated from these new facilities will meet province-wide electrical capacity needs.

The IESO expects that Ontario will have at least 1,217 MW of energy storage capacity, up from 228 MW currently, participating in the IESO's electricity market by 2026 as a result of this project and other similar storage installations.

“We are proud that Ameresco was one of the forward-thinking companies that provided the IESO with pilot projects that gave them confidence that BESS systems are ready for prime time at this size” said Lou Maltezos, EVP of Ameresco. “In partnership with Atura Power, we are honored that our JV has been selected by the IESO for this battery energy storage system installation, one of the largest in Canadian history. This project is designed to significantly bolster the province’s energy security and reliability, ushering Canada into a greener, more sustainable age.”

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