Sunrock Distributed Generation financed the project, WattHub Renewables served as developer, and SunRenu Solar completed the roofing and solar construction. The installation has received permission to operate, with commissioning underway.

The system is expected to generate approximately 506,000 kilowatt-hours of electricity annually. Project partners estimate it will offset a substantial portion of the property’s electricity use under Southern California Edison’s GS-2-TOU commercial tariff.

The system is also projected to reduce carbon dioxide emissions by approximately 359 metric tons annually, according to estimates based on U.S. Environmental Protection Agency greenhouse gas equivalency factors.

The project’s developers said the roofing component addressed a common obstacle facing commercial property owners considering solar installations. Because photovoltaic systems are generally designed to remain in service for decades, installing panels over an aging roof can create additional costs if the system must later be removed and reinstalled for roof replacement.

WattHub structured the PPA so the project economics could support both the solar installation and roof reconditioning. SunRenu then completed the two scopes as one coordinated construction project.

“As a nonprofit commercial HOA, every dollar of operating budget matters to our members,” said Ashley Cardo, real estate manager with Pacific Coast Commercial Real Estate, the association’s agent. “This project lowers our electricity costs immediately, protects us from utility rate escalation and gives us a roof with warranty—and we did not have to levy an assessment or draw on reserves.”

Chris Leonard, chief revenue officer of WattHub Renewables, said combining the scopes removed what had been the property’s primary barrier to adopting solar power.

“By enabling the roof reconditioning alongside the solar array, we eliminated the single biggest obstacle to adoption for properties like this one,” Leonard said.

SunRenu Principal John McDonnell said coordinating the roofing and solar work also helped limit disruption at the medical property by avoiding separate construction campaigns.

“Our crews completed both workstreams on a tight timeline and handed back both a building envelope and a generation asset that will perform together for decades,” McDonnell said.

The project is being monitored through the Wattch energy management platform. Project partners said the financing model could serve as a template for other commercial homeowners associations and nonprofit property owners seeking to address aging roofs while reducing energy expenses.