First two phases of Mount Signal 3 mega-project come online

Facebook
Twitter
LinkedIn
Reddit
Email
The Mount Signal complex. Credit: 8minutenergy.

The first two phases of California’s Mount Signal 3 (MS3) project are now online, according to developer 8minutenergy renewables.

The 328MW project is part of the ~800MW Mount Signal cluster. The first 266MW (Mount Signal 1) was completed by 8minutenergy in May 2014. MS3 is expected to reach full commercial operation by the end of 2018.

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

“This project is important to the Imperial Valley’s future given the amount of abundant and reliable solar power that will be delivered to the region for decades to come,” said Martin Hermann, CEO and founder, 8minutenergy.

The project was acquired around one year ago by Capital Dynamics with 8minutenergy retained to see the plant to fruition.

Mortenson Construction is providing the engineering, procurement, and construction (EPC) services. The project is using First Solar Series 4 modules and NEXTracker’s NX Horizon trackers. A power purchase agreement is in place with Southern California Edison.

Read Next

May 21, 2026
Indian renewable energy company SAEL has commissioned 600MW of solar project in Amaravati, Andhra Pradesh. 
May 21, 2026
US solar glass producer Stewart Glass is expanding its facility in Ohio with a new production line expected in 2027.
May 21, 2026
Spanish independent power producer Grenergy has signed a long-term hybrid power purchase agreement (PPA) with US utility Georgia Power.
May 21, 2026
Developers of co-located solar-plus-storage projects need to ensure their projects are designed to ‘solve’ the challenges faced by offtakers.
May 21, 2026
Europe has avoided €10 billion in gas imports since the start of the Iran war thanks to power generated from its solar PV fleet, according to research from SolarPower Europe.
May 20, 2026
Canadian energy firm Enbridge will develop a 365MW/1,600MWh solar-plus-storage project in Wyoming, US, as part of an ongoing partnership with tech and data giant Meta.

Upcoming Events

Upcoming Webinars
May 27, 2026
9am BST / 10am CEST
Upcoming Webinars
May 27, 2026
9am BST / 10am CEST
Media Partners, Solar Media Events
June 2, 2026
Johannesburg, South Africa
Media Partners, Solar Media Events
June 3, 2026
National Exhibition and Convention Center (Shanghai)
Solar Media Events
June 16, 2026
Napa, USA