hawaii

December 24, 2025
In this Energy-Storage.news roundup,  Hydrostor receives permitting approval for its California project, Hawaiian Electric is set to begin construction on a Maui battery energy storage system (BESS) and Peregrine and Wärtsilä advance construction of a Texas BESS.
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June 26, 2025
Documents filed with the Hawaiian Public Utilities Commission (PUC) have revealed the impacts of additional import tariffs to a Hawaiian Electric Company (HECO) battery storage project.
March 27, 2025
Independent power producer (IPP) Innergex Renewable Energy’s 30MW/120MWh Hale Kuawehi battery energy storage system (BESS) project has reached commercial operations.
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February 20, 2025
Longroad Energy has secured a power purchase agreement for one of its hybrid solar and BESS projects in California with Marin Clean Energy.
December 18, 2024
Innergex Renewable Energy has closed a US$100 million bridge loan for the Hale Kuawehi battery energy storage system (BESS) project in Hawaii.
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November 14, 2024
Clearway Energy has withdrawn three hybrid solar and storage projects from Hawaiian Electric Co’s (HECO’s) latest renewable energy procurement, citing the investor-owned utility’s (IOU’s) “ongoing financial uncertainty”.
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June 10, 2024
AES Corporation has withdrawn one of its solar and battery storage hybrid facilities from Hawaiian Electric Co’s (HECO’s) latest renewable energy procurement.
April 11, 2024
AES Corporation has brought into commercial operation one of several large-scale renewable energy and battery storage projects in its development portfolio in Hawaii.
January 11, 2024
BESS developer and operator Plus Power has brought a 185MW/565MWh project online in Hawaii, US, which it claimed is the “most advanced grid-scale BESS in the world”.
December 13, 2023
Hawaii’s main utility Hawaiian Electric has entered into contract negotiations with the developers of 15 renewable energy projects, including solar, wind and a combined 2.1GWh of energy storage.

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