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

Premium
October 30, 2026
Renewabl's JP Cerda speaks to PV Tech Premium about changing corporate procurement strategies and the impact of negative electricity prices.
October 30, 2026
The 200MW FPV project in Malaysia will be one of the largest floating solar developments in Southeast Asia, built using Masdar's experience from 145MW Cirata plant in Indonesia.
October 30, 2026
US solar manufacturer First Solar reported net sales of US$1.23 billion for the third quarter of 2026, down 23% year-on-year.
October 30, 2026
US CBP has released solar cell shipments from Japanese manufacturer TOYO’s Ethiopian facility after reviewing its supply chain documentation.
October 30, 2026
Michigan utility DTE Energy has announced the operational status of its 132MW Fish Creek Solar Park near Sheridan, Michigan.
October 30, 2026
Solarcentury Africa has announced a collaboration with First Quantum Minerals (FQM) to develop the 112MWp Kusoka Solar Plant in Zambia.

Upcoming Events

Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye