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.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our fourth PV CellTech conference dedicated to solar manufacturing in the USA. From polysilicon, wafers, ingots, cells and modules, to critical component suppliers including glass and frames, the event connects every stage of the value chain under one roof. PV CellTech USA also brings together investors, innovators, manufacturers and industry stakeholders to collaborate and strengthen domestic solar manufacturing across the United States.

Read Next

Premium
August 14, 2026
PV Talk: 'There’s a lot of good news here,' Hasan Nazar, head of policy at Crux, tells PV Tech Premium of the US solar policy landscape.
August 14, 2026
IPP Recurrent Energy has secured US$695 million in financing to support a 330MW solar PV project in California.
August 14, 2026
Mainstream Renewable Power’s 50MW C&I Ilikwa PV Facility in South Africa’s Free State province has reached commercial operation.
August 14, 2026
T1 Energy reported US$250.1 million in Q2 2026 sales as construction of its 2.1GW G2_Austin solar cell factory progressed.
August 14, 2026
Foreign Entity of Concern rules create a multitude of new risks for US solar developers, some less visible than others. Intertek CEA’s Jordan Wilson explores the key steps towards minimising FEOC exposure in PV module purchase agreements.
August 13, 2026
Comstock has advanced its industry-scale PV recycling line, while Florida-based OnePlanet has launched its 'PRISM' system to recover valuable materials from end-of-life solar modules.

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
Solar Media Events
April 20, 2027
Istanbul, Türkiye