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).

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

October 12, 2026
Doral Renewables has celebrated the imminent commercial operation of three phases of the 1.3GW Mammoth Solar park in Indiana.
October 9, 2026
Funds have been raised from private equity providers for two community solar developers that benefit several US states, in separate deals.
October 9, 2026
The IPP has begun the build phase of a new 420MW hybrid renewable energy park in Mohave County, Arizona, with completion due in 2028.
October 8, 2026
Toyo has held a ribbon-cutting ceremony to mark the expansion of its solar module manufacturing plant in Humble, Texas.
Premium
October 8, 2026
PV Talk: Indosol's Manoj Pothireddy tells PV Tech Premium that opportunities remain for overseas wafer manufacturers to export to the US.
October 7, 2026
Independent power producer (IPP) Zelestra has closed a US$350 million credit facility for the 203 MW Reclamation Solar project in Indiana.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events, Upcoming Webinars
October 21, 2026
2pm AEDT
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland