Hawaiian Electric Companies reached a consolidated 27% renewable portfolio standard in 2018, even after the state’s Hawaii Island lost its geothermal resources for most of the year as a result of the Kilauea volcanic eruption.
Following a report on Friday that Hawaiian Electric has contracted PPAs with 75MW of solar projects including battery storage with developer Clearway, the utility has put before regulators proposals for five other grid-scale projects.
San Francisco-headquartered firm Clearway Energy Group has signed power purchase agreements (PPAs) with utility Hawaiian Electric Company for two solar-plus-storage projects on Oahu, Hawaii, with a combined PV capacity of 75MW.
Following news yesterday of the first grid-scale solar-plus-storage system on the Hawaiian island of Molokai, two more modestly-sized projects show the potential diversity of applications for energy storage in the US state.
Hawaii has been a prolific installer of both rooftop solar and latterly batteries for energy storage and one of the US state’s smaller islands looks set to get its first ever grid-scale solar-plus-storage system.
Hawaii’s KIUC, the top-ranked US utility in 2017 for energy storage deployment per customer by SEPA (Smart Electric Power Alliance), will pay less than US$0.11 per kWh for power from a new solar-plus-storage facility.
AES Distributed Energy (AES DE), a subsidiary of AES Corporation, and nonprofit transmission firm Kauai Island Utility Cooperative (KIUC) have broken ground on a 28MW solar and 100MWh five-hour duration battery energy storage system in Kauai, Hawaii.