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).

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 2028 and beyond.
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
May 22, 2026
PV Talk: Frank Oudheusden explains how robotics could create a paradigm shift and improvements in PV system optimisation for extreme weather.
May 22, 2026
The planned merger of US utilities NextEra Energy and Dominion Energy should be met with “caution” by state lawmakers, according to a number of US clean energy and political non-profit groups.
May 22, 2026
Polar Racking has launched a Solar Asset Management Division to support operations and maintenance (O&M) activities across utility-scale and commercial solar projects in North America and the Caribbean. 
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 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