HECO power plant at Kahe Point in West Oahu]] Hawaiian Electric Industries Inc. is the largest supplier of electricity in the state of Hawaii suppling power to 95% of Hawaii's population through its electric utilities: Hawaiian Electric Company Inc. Hawaii Electric Light Company Inc. and Maui Electric Company Limited. In addition HEI owns a financial institution serving Hawaii American Savings Bank. (The island of Kauai is the only island in the state not supplied by HEI.