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

November 5, 2026
Sunrun reports 5GWh of networked storage capacity in the third quarter of 2026, while solar additions reached 204MW.
November 5, 2026
Independent power producer (IPP) Energix Renewables has brought its 152MWdc Border Basin solar project online in Hancock County, Ohio, with the facility now delivering power to the PJM Interconnection market.
November 5, 2026
EDP Renewables North America has begun work on its 250MW Cypress Knee Solar project in Arkansas, which will eventually supply power to tech giant Meta.
November 5, 2026
Tristan Erion-Lorico and Song Hao of Kiwa PVEL examine the negative consequences of overreliance on module nameplate power ratings for PV project economics.
November 4, 2026
Array Technologies and Shoals Technologies Group have agreed to combine in a stock-for-stock merger, creating an integrated energy infrastructure platform spanning structural and eBOS solutions for utility-scale solar PV and battery storage.
November 4, 2026
rPlus Energies has closed a revolving credit facility of up to US$450 million to support its project pipeline across the American West.

Upcoming Events

Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye