Altus Power’s Groundbreaking Hawaii Array Hits Its 1-Year “Solarversary”

Photo Credit:

Altus Power

Hawaii is committed to getting 100% of its electricity from clean energy by 2045, and Altus Power’s Community Solar subscribers in the Aloha State deserve kudos for doing their part to help Hawaii reach that goal. This month Altus is celebrating the one-year “Solarversary” of our solar array in Kapolei on the island of Oahu — and the subscribers who make it all possible.  

What's a Solarversary? It's just like a regular anniversary, but here at Altus Power we commemorate the date a Community Solar project turned on and started generating clean power for its local community. And for those of you who have been subscribed to the project from the start, it’s your Solarversary too!  

In just the first year since it’s been live, the Kapolei array and its subscribers have helped avoid 4,532 metric tons of carbon-dioxide equivalents*. (FYI, those are units of measure used to compare greenhouse gases’ global warming potential, according to the U.S. Environmental Protection Agency.) Along the way, those same subscribers have helped reduce Hawaii’s reliance on energy from fossil fuels and helped expand access to the benefits of clean energy.

Altus announced the Kapolei project in June 2023, hailing it as Hawaii’s first large-scale community solar array. The ground-mounted 5-megawatt array generates clean electricity for a local medical facility and its employees and for the Hawaiian Electric grid. As part of Altus Power’s Community Solar Partnership Program, subscribers supporting the array enjoy solar savings of 13.3%.  

Those subscribers are among the more than 25,000 customers enrolled with Altus Power’s Community Solar nationwide, who are supporting Altus in delivering 290 megawatts of clean energy to local power grids across the country. And with Community Solar, it’s easy to access the benefits of clean energy, especially because there are no upfront fees and no equipment to install.

“This is a true local partnership between the local medical facility, Hawaiian Electric, Altus and most importantly, Oahu residents, to help Hawaii achieve its goal of sourcing 100% of its electricity from clean sources by 2045,” said Nichole Clennon, VP of Community Solar for Altus Power. “We’re proud to have built the largest Community Solar project in Hawaii a year ago and are excited to welcome more subscribers into the program.”

Interested in joining Community Solar? In addition to Oahu’s Kapolei array, Altus has solar projects in the continental United States, too. Anyone in a qualifying state with a utility bill can sign up for free and start supporting clean energy while enjoying guaranteed solar savings between 5 and 20%, depending on where they live, and subscribers can cancel any time. Head over to join.altuspower.com to check your eligibility and get started.

*Calculated using Hawaii's grid emission factor of 0.7088 kg co2e/kWh (as reported by the EPA's Emissions & Generation Resource Integrated Database) multiplied by the solar generation of 6,393,970 kWhs of the Palailai Solar 1 project in the first year of operation.

Interested in getting started with Community Solar?

Reduce your electricity costs and help your community go green with Community Solar.

Keep your finger on the pulse

Subscribe to our newsletter to get the latest sustainability news and product updates from Altus Power.  

By subscribing you agree to with our Privacy Policy.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Photo Credit:

Louis Velazquez on Unsplash

Industry Analysis

2025: A Pivotal Year for Solar, and a Clear Path Forward

If 2025 proved anything, it’s that the US energy transition is no longer theoretical; it’s happening under real political, economic and grid constraints. This past year brought meaningful shifts at both the federal and state levels, reshaping how clean energy gets built, where it gets built and who benefits. As we look ahead to 2026, one theme rises above the rest: affordability. For Altus Power, affordability isn’t a side benefit of the energy transition -- it is core to the mission, guiding the company’s focus on delivering locally generated, cost-stable solar that lowers bills for businesses and households alike. With electricity prices steadily increasing, policymakers are looking for practical solutions to ensure the lights stay on and utility bills remain in check. It’s never been clearer that every electron, regardless of source, matters

Justin Biltz, Head of Policy & Government Affairs
December 31, 2025
8
min read

Photo Credit:

Solar News

State of Solar 2025: Sunny Stats About Solar Power in the U.S. and Globally

As data centers pop up around the country to support the artificial intelligence boom, electricity needs are spiking. Luckily, renewables — and solar energy in particular — have been rising to meet the challenge. Here's some of the top solar news from 2025, and what to expect from the industry in 2026 and beyond.

The Altus Power Team
December 12, 2025
5
min read
View all