Nearly Half of Oahu Single-Family Homes Have Rooftop Solar, Hawaiian Electric Reports
Nearly half of Oahu's single-family homes have rooftop solar, with Hawaiian Electric reporting 49% penetration on Oahu, 47% in Maui County, and 30% on Hawaii Island. Systemwide, 45% of homes have solar. The number of grid-connected systems reached 118,841 by September's end. Solar adoption has doubled in a decade, contributing to bill stability and the lowest rates since 2022. This reflects a significant shift towards renewable energy in the region.
Nearly half of all single-family homes on Oahu now have rooftop solar systems, according to Hawaiian Electric Industries Inc. The number of grid-connected solar systems across the five islands served by Hawaiian Electric increased to 118,841 by the end of September. On Oahu, an estimated 49% of single-family homes have rooftop solar, while Maui County and Hawaii Island have penetration rates of 47% and 30% respectively. Systemwide, 45% of single-family homes served by the company have solar systems. The percentage of Hawaiian Electric residential customers with solar systems has more than doubled over the last decade. Hawaiian Electric reports that rates have fallen to the lowest level since 2022, and rooftop solar and battery storage systems have contributed to greater bill stability for customers. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. HEI - Hawaiian Electric Industries Inc. published the original content used to generate this news brief on November 25, 2025, and is solely responsible for the information contained therein. © Copyright 2025 - Public Technologies (PUBT) Original Document: here
