Sempra Generation agreed with Maui Electric Co. to build a 21-megawatt wind-generation project with a 12 megawatt-hour battery storage on the Hawaiian island of Maui, Sempra officials said Thursday.
Sempra Generation, owned by the same company that owns San Diego Gas & Electric Co. and Southern California Gas Co., will build Auwahi Wind on an 18,000-acre cattle ranch. The project will provide enough power to supply 10,000 Maui homes.
The battery will store excess power generated at night and early morning, and help smooth the intermittent generation of the windmills. Hawaii has a state goal of buying 40 percent of its electricity from renewable sources by 2030.
The project must be approved by the Hawaii Public Utilities Commission.
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