At the end of last year there were 96,912 photovoltaic solar installations in Hawaiʻi, according to Hawaiian Electric Company (HECO).
Oʻahu, unsurprisingly, leads the way with 66,164, followed by Maui County with 15,390.
HECO’s battery bonus program offers a one-time cash payment and monthly bill credits for adding battery storage to an existing or new rooftop solar systems. The program launched on Maui in 2022.
“With a commitment to cut carbon emissions from power generation 70 percent from 2005 levels by 2030, Hawaiian Electric’s Climate Change Action Plan includes the addition of 50,000 rooftop solar systems on homes and businesses over the next eight years,” HECO said in a statement. “Almost all new systems today include energy storage, giving customers greater control over their energy use and saving them money while supporting the stability and reliability of island grids.”