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August 28, 2021

Auwahi Wind Farm – Battery Energy Storage System, US

By Carmen

The Auwahi Wind Farm – Battery Energy Storage System is an 11,000kW energy storage project located in Kula, Hawaii, US.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2011 and was commissioned in 2012.


The Auwahi Wind Farm – Battery Energy Storage System is owned by BP Wind Energy North America (50%), a subsidiary of BP and Sempra U.S. Gas & Power (50%).

The key application of the project is ramping.

Contractors involved

A123 Systems, BP Wind Energy North America and Sempra U.S. Gas & Power have delivered the battery energy storage project.

Additional information

The battery storage component of this project includes state-of-the-art monitoring and safety controls that ensure reliable operation for the life of the project. The wind power from Auwahi Wind has been sold to Maui Electric Company under a 20-year contract.


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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