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.

21 October 2025
New York, USA
Returning for its 12th edition, Solar and Storage Finance USA Summit remains the annual event where decision-makers at the forefront of solar and storage projects across the United States and capital converge. Featuring the most active solar and storage transactors, join us for a packed two-days of deal-making, learning and networking.
25 November 2025
Warsaw, Poland
Large Scale Solar Central and Eastern Europe continues to be the place to leverage a network that has been made over more than 10 years, to build critical partnerships to develop solar projects throughout the region.
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

Premium
October 10, 2025
Gaëtan Masson of IEA PVPS warns of overcapacity, collapsing prices and slipping module quality in the new Trends in PV Applications report.
October 10, 2025
US solar recycling firm OnePlanet has achieved the R2v3 certification from electronics sustainability non-profit SERI, which represents the “highest standards of traceability”.
October 10, 2025
NTPC Renewable Energy Limited has signed an MoU with the Government of Gujarat to develop 15GW renewable energy projects in Gujarat.
October 10, 2025
Australia's renewable energy sector recorded its slowest month of the year for additions in September, with 5.8GW of new projects added to development pipelines, according to data from Rystad Energy.
October 9, 2025
The Australian government has announced the results of the fourth Capacity Investment Scheme (CIS) tender, with 6.6GW of renewables awarded long-term contracts.
October 9, 2025
Solar PV is the world’s cheapest technology to generate electricity, according to a study from the University of Surrey, in the UK.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
October 21, 2025
New York, USA
Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK