Work starts on California’s largest floating solar project

May 23, 2019
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.”

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

Read Next

October 31, 2025
Solar Media Market Research looks into the the Section 232 ruling in the US, tackling the questions that need to be understood.
October 31, 2025
US independent power producer (IPP) Treaty Oak Clean Energy has signed two environmental attribute purchase agreements (EAPA) with social media and data giant Meta.
October 31, 2025
US thin-film module manufacturer First Solar has unveiled plans to build a new 3.7GW manufacturing plant in the US in 2026.
October 30, 2025
Global net zero by 2050 is now “impossible” and the world is on course for temperature rises of 2.6°C, according to energy market analyst Wood Mackenzie.
October 30, 2025
US microinverter producer Enphase Energy posted increased revenues, margin and income in Q3 2025, as it doubles down on its US manufacturing operations.
October 30, 2025
Nexamp has secured US$600 million in financing for distributed solar and energy storage projects in the US.

Subscribe to Newsletter

Upcoming Events

Upcoming Webinars
November 12, 2025
10am PST / 1pm EST
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 10, 2026
Frankfurt, Germany