The Kupono Solar PV Park – Battery Energy Storage System is a 42,000kW energy storage project located in West Loch, Pearl Harbor, Oahu, Hawaii, US. The rated storage capacity of the project is 168,000kWh.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2019 and will be commissioned in 2022.


The Kupono Solar PV Park – Battery Energy Storage System is being developed by Bright Canyon Energy . The project is owned by Bright Canyon Energy (100%), a subsidiary of Pinnacle West Capital .

The key applications of the project are renewable energy integaration, peak shaving and energy demand management.

Contractors involved

Bright Canyon Energy is the owner. Bright Canyon Energy is the developer.

Additional information

The project would connect to Hawaiian Electric Company’s Oahu grid for 20 years. The batteries will enable renewable energy to be utilized during the peak evening hours. The proposed project, Kupono Solar, will bring 42 MW of energy with a four-hour battery energy storage system, enough to power 10,000 homes.


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.