The Caithness Beaver Creek Wind Farm III – Battery Energy Storage System is a 40,000kW energy storage project located in Montana, US. The rated storage capacity of the project is 160,000kWh.

The project was announced in 2018 and will be commissioned in 2020.


The Caithness Beaver Creek Wind Farm III – Battery Energy Storage System is being developed by Caithness Energy. The project is owned by Caithness Energy (100%).

The key applications of the project are renewables capacity firming and renewables energy time shift.

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By GlobalData

Contractors involved

Caithness Energy is the owner. Caithness Energy is the developer.

Additional information

The project is a part of Caithness Beaver Creek wind farms in Montana. Caithness Beaver Creek, a unit of power producer Caithness Energy, wants to develop the four 80 MW wind projects and 40 MW/160 MWh batteries as qualifying facilities (QFs) under the Public Utility Regulatory Policy Act (PURPA) after negotiations over capacity payments broke down with Northwestern Energy, Montana’s largest utility.

About Caithness Energy

Caithness Energy, L.L.C. (Caithness) is an alternative energy company that offers power generation programs. The company is a Independent Power Producer specializing in the operation, development, acquisition and management of renewable energy and natural gas. The company generates power through wind, natural gas, geothermal, hydroelectric, solar and coal resources. Its services comprise asset management, operations and maintenance, and development support. Caithness has equity investments in the electric generating power facilities such as Rumford Power, and Tiverton Power. The company offers management and operating services for the electric generating power facilities owned by third parties. Its projects include Caithness Long Island Energy Center, Caithness Shepherds Flat, Mescalero Ridge, and Caithness Blythe II. Caithness is headquartered in New York, the US.


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.