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

September 2, 2026
Waaree Energies approved US$37 million to expand its Arizona module plant to 1.6GW and consolidate 2.11GW in Gujarat.
September 2, 2026
New Jersey governor Mikie Sherrill has signed into law a bill that will permit state residents to use plug-in solar panels of up to 1,200W.
September 2, 2026
In the third part of this week’s series exploring the US solar supply chain, we track how quickly announced manufacturing capacity is translating into real production.
September 2, 2026
Array Technologies has completed its acquisition of Affordable Wire Management (AWM), following the announcement of the deal in July.
September 1, 2026
California has advanced a bill that would enable residents to request remote inspections for home energy systems.
September 1, 2026
The US has launched a US$12 million R&D fund that will support projects to produce solar panels for use in space.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK