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Developing a pumped storage hydro project on Kauai's west side has been in discussion for nearly a decade. KIUC and The AES Corporation (AES) joined forces on a groundbreaking solar PV + Battery Energy Storage and pumped storage hydro project which will be the first of its kind in the world and is a critical component of Kauai's renewable energy future. 

Learn more about the technology behind WKEP from this instructional video

A link to the Final Environmental Assessment, which was issued a Finding of No Significant Impact (FONSI), can be found here


WKEP How it Works