Hawaii Hits Milestone in Rooftop Solar - CleanTechnica

Hawaii has reached a significant milestone in rooftop solar adoption, achieving 1 gigawatt (GW) of installed solar capacity, the highest per capita rate in the United States. This milestone reflects a 44% penetration of rooftop solar among single-family homes on Oahu, the state’s most populous island. The high cost of electricity in Hawaii—over 42 cents per kilowatt-hour—makes rooftop solar an attractive investment for homeowners. Hawaiian Electric (HEI) credits this achievement to customer-friendly renewable energy programs developed in collaboration with the solar industry and regulatory oversight, which also help reduce the state's reliance on imported oil. Michael Colón, Energy Director at Ulupono Initiative, highlighted that this combined rooftop solar and storage capacity would be the largest renewable energy project in Hawaii, surpassing all others by a wide margin. Hawaii was the first U.S. state to mandate 100% clean energy by 2045, and HEI’s renewable plans focus heavily on solar paired with battery energy storage