City of Colfax Partners with HOLT Renewables to Power Wastewater Facility with 481 kW Ground‑Mount Solar System

Colfax, CA – October 28, 2025 – HOLT Renewables is pleased to announce the successful completion of a 481 kW DC ground‑mount solar installation at the City of Colfax’s Wastewater Treatment Facility. This solar asset will deliver long‑term savings, resilience, and clean energy benefits to the city’s infrastructure.

In its first year, the system is projected to generate ~854.2 MWh, and over 30 years, it is estimated to yield over $5M in electricity cost savings for the city.

“This project is a landmark for Colfax as we integrate renewable energy into our critical wastewater operations,” said Ron Walker, City Manager. “We anticipate both financial and environmental benefits that will serve our community long into the future.”

HOLT Renewables provided turnkey services—design, engineering, procurement, and construction—for the project, delivering the full solution from planning through commissioning.

“Through partners like the City of Colfax, we are demonstrating how mid‑sized municipalities can deploy solar infrastructure that supports both resilience and fiscal responsibility,” said HOLT Renewables Kevin Chavez, General Manager. “We are committed to ensuring these systems are safe, reliable, and optimized for the long term.”

Since its founding, HOLT Renewables has maintained a strong safety record and brings deep experience in commercial and public-sector solar projects.

About HOLT Renewables

HOLT Renewables is a full-service commercial solar solutions provider specializing in design-build services for solar, battery storage, microgrid, and EV infrastructure projects nationwide. Since 2012, HOLT Renewables has delivered turnkey clean energy solutions to help businesses achieve energy independence and long-term cost savings—without compromising on safety or quality.