Fire at embattled Ivanpah CSP plant

Facebook
Twitter
LinkedIn
Reddit
Email
The Ivanpah Solar Electric Generating System near Primm uses more than 300,000 mirrors to focus sunlight on boilers atop 459-foot power towers heating water into steam to create electricity. Image: Associated Press

One of the three towers the 392MW Ivanpah concentrated solar power (CSP) plant is out of action after suffering damage due to a small fire on Thursday morning.

The plant is located on the California-Nevada border near Primm and sustained sufficient damage to now be operating at only a third of its capacity, according to authorities.

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 CSP facility uses more than 300,000 mirrors that extend over around five square miles of desert and focus sunlight on boilers atop 459ft thermal power towers to create electricity. The fire has been blamed on misaligned mirrors that focused sunbeams at the wrong area; causing electrical cables to catch fire, according to the San Bernardino County fire department, who arrived at the site after reports of visible flames from the Unit 3 tower near the ninth floor.

Plant personnel fortunately had the fire out by the time the firefighters reached the site. The tower is offline while the damage is assessed and the exact cause is under investigation. Under normal operational conditions, the US$2.2 billion complex provides enough power for 140,000 Californian homes, according to the company.

At the moment, it is unclear when the tower will be back online and what the wider implications for California’s electricity supply will be; particularly given the state's recent energy travails after the four-month long methane leak at Aliso Canyon caused serious blackout concerns. 

This comes as another blow for CSP; particularly in light of Spain’s Abengoa, a CSP specialist, enduring arduous bankruptcy proceedings. In addition, earlier this year, the 500MW Palen plant was written off by the California Public Utilities Commission (CPUC).

Read Next

September 25, 2026
Welcome to the PV Tech Best of the Week roundup, covering the week's biggest stories from the global solar industry.
Premium
September 25, 2026
Bright Saver co-founder Cora Stryker examines how fragmented state policies are shaping the US plug-in market’s growth.
September 25, 2026
The US Department of Energy’s (DOE) Office of Electricity (OE) will funnel US$5.25 billion into 31 “grid-improvement” projects across the US, which it claims will allow for 23GW of additional electricity capacity.
Premium
September 24, 2026
Henner Jahnke of Jurchen Technology examines whether high-density east-west systems can outperform trackers under today’s solar economics.
Premium
September 24, 2026
US Policy Focus: PV Tech looks at the Indian AD/CVD determinations, the ban on certain power equipment and other recent developments.
September 23, 2026
The US has published new limits on polysilicon imports to the US ahead of new tariffs coming into force on 4 December.

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