Nearly half of all O‘ahu single-family homes now have rooftop solar as installations continue at steady pace Hawaiian Electric continues push to bring more clean energy onto the grid

Nearly half of all O‘ahu single-family homes now have
rooftop solar as installations continue at steady pace
Hawaiian Electric continues push to bring more clean energy onto the grid
HONOLULU, Nov. 25, 2025 – Nearly half of the single-family homes on O‘ahu now have
rooftop solar systems, highlighting Hawaiian Electric’s nation-leading effort to bring more
customer-sited renewable energy onto the grid.
The number of grid-connected solar systems across the five islands served by Hawaiian Electric
rose to 118,841 at the end of September. The increase was the largest on O‘ahu where an
estimated 49% of all single-family homes now have rooftop solar systems. In Maui County the
share is 47% and on Hawai‘i Island it’s 30%. Systemwide, 45% of single-family homes served
by the company have solar systems.
“It’s heartening to see so many of our customers achieve their goal of installing a rooftop solar
system,” said Kaiulani Shinsato, Hawaiian Electric Customer Energy Resources co-director.
“Hawaiian Electric’s rates have fallen to the lowest level since 2022, and rooftop solar and
battery storage systems have helped customers further manage their energy costs and see
greater bill stability, reinforcing the value of customer-sited renewables for customers and as
part of our generation mix.”
The percentage of Hawaiian Electric residential customers with solar systems has more than
doubled over the last decade. The U.S. Energy Information Agency regularly cites Hawai‘i as
the nation’s leader in rooftop solar penetration on a per capita basis.
Hawaiian Electric is continually upgrading its suite of customer-friendly solar programs to add
more renewable energy to the grid in a fair and sustainable way. Smart Renewable Energy is
the latest iteration of that effort. More information about Smart Renewable Energy is available at
hawaiianelectric.com/smartprograms
Hawaiian Electric is just one of the players helping customers install rooftop solar systems.
Solar contractors and local government planning and permitting departments also play a key
role in working with customers to navigate the process of installing a solar system.