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

November 24, 2025
US solar module manufacturer First Solar has inaugurated its 3.5GW vertically integrated manufacturing facility in the state of Louisiana, the company’s fifth factory in the US.
Premium
November 24, 2025
PV Talk: RES Group's Ksenia Dray discusses how European solar developers are reshaping strategies to maintain project viability in challenging market conditions.
November 21, 2025
CPS Energy has issued a request for proposals (RFP) to acquire 600MW of new solar capacity through power purchase agreements (PPA).
November 20, 2025
US independent power producer (IPP) Arevon Energy has begun construction on a 124MW solar PV project in Illinois, its first utility-scale project in the state.
November 19, 2025
Econergy Renewable Energy has successfully connected its 52MW Resko solar project in Poland to the national electricity grid.
November 19, 2025
The US Department of Energy (DOE) will need to invest US$25 billion by 2030 to maintain its position as a leader in the global energy sector.

Upcoming Events

Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Upcoming Webinars
December 4, 2025
2pm GMT / 3pm CET
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Lisbon, Portugal