Work starts on California’s largest floating solar project

Facebook
Twitter
LinkedIn
Reddit
Email
The 1.78MW is the largest in California...for now. Source: Ciel et Terre.

Construction has begun on what will be California’s largest floating solar system.

The 1.78MW system is being installed by Ciel et Terre on a recycled water storage facility in the town of Windsor. It will provide 90% of the treatment and pumping station’s electricity needs.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

The modules will be mounted on Ciel et Terre’s Hydrelio floating racking system. It will be tethered to the shore.

Ciel et Terre has agreed a 25-year power purchase agreement (PPA) with the town’s authorities.

“By entering into a PPA, the town can substantially reduce its energy overhead without any investment,” said Eva Pauly-Bowles, representative director, Ciel & Terre USA. “Floating solar is becoming an attractive energy alternative for municipalities seeking to reduce operating costs and preserve valuable land for other developments,” she added.

The installed system covers 22% of the water surface with the possibility of an extension in the future.

Craig Gini, VP and renewables general manager for the installer Collins Electrical Company, said: “Floating solar is an excellent alternative to conventional solar arrays and it’s simpler and faster to install. We expect more of our California customers will be installing floating solar systems in the coming months.”

Read Next

June 10, 2026
New figures from SEIA and Wood Mackenzie reveal that solar and storage accounted for 91% of new additions to the US grid in Q1 2026.
June 10, 2026
Brookfield and Mitsubishi HC Capital have formed a JV anchored by a 570MW European portfolio valued at approximately US$462 million.
June 10, 2026
Solar manufacturer Qcells has started producing solar cells at its vertically integrated manufacturing facility in Cartersville, Georgia.
June 9, 2026
Revolve Renewable Power is acquiring a 125MW portfolio of utility-scale solar development projects in the US.
June 9, 2026
Zelestra has signed a long-term power purchase agreement (PPA) with Meta for the 180MWdc Palmera Solar Plant in Freestone County, Texas.
June 9, 2026
A US Federal judge has revoked a law preventing solar PV and wind projects from qualifying for tax credits by committing 5% of the project’s value.

Upcoming Events

Solar Media Events
June 16, 2026
Napa, USA
Media Partners, Solar Media Events
June 30, 2026
Sacramento, California
Media Partners, Solar Media Events
August 25, 2026
São Paulo, Brazil
Media Partners, Solar Media Events
September 1, 2026
Mexico City, Mexico
Media Partners, Solar Media Events
September 9, 2026