First Solar’s Series 6 modules go live at 280MW California Flats project

Facebook
Twitter
LinkedIn
Reddit
Email
The project at the Hearst cattle ranch is first to use the firm's new Series 6 modules. Source: Hearst.

The 280MW California Flats project has reached commercial operation, with First Solar’s large format Series 6 modules sending power to the grid for the first time at this scale.

The site was developed by First Solar before asset management firm Capital Dynamics bought it in August 2017.

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 California Flats Solar Project is also the first to feature our innovative Series 6 PV module technology, which is setting the standard for affordable and cleaner renewable energy,” said Troy Lauterbach, senior VP of EPC and Energy Services for First Solar. “We are thrilled to partner with Capital Dynamics and Hearst to deliver on a shared commitment to building a sustainable energy future,” he added.

The site is part of the Hearst cattle ranch, which provides beef to Whole Foods.

Power from the site is sold to utility and commercial customers under two long-term power purchase agreements (PPA).

“The California Flats Solar Project helped us meet our goal of finding a sustainable solution to keep the 73,000-acre Jack Ranch intact as a historic working cattle ranch using traditional and time-proven ranching methods for our grass-fed Hearst Ranch Beef program,” said Steve Hearst, Vice President and GM of Hearst Western Properties.

“Countless hours have been invested by Hearst and our partners in bringing this sizable, complex project to fruition and ensuring it operates seamlessly with our cattle operation and ranch environment,” he added.

Read Next

Premium
September 11, 2026
The financial difficulties of one of Europe’s best-known downstream solar companies highlight the faultlines running through the continent’s PV and energy storage business.
September 11, 2026
Plans for the US’ “first end-to-end” solar PV critical materials recovery and recycling facility have been announced.
September 11, 2026
This week's PV Chart of the Week profiles the technology breakdown of projected US solar module production capacity.
Premium
September 11, 2026
PV Talk: PERC has the potential to be a “workhorse” in the US cell manufacturing space, Suniva's Matt Card tells PV Tech Premium.
September 11, 2026
Italian power utility Enel has bought two solar PV projects in the US with a combined 625MW of generation capacity.
September 11, 2026
Georgia Power has secured Georgia Public Service Commission (PSC) approval for seven solar PPAs totalling 1,137MW under its CARES programmes.

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