World's largest solar thermal project heats up in the Californian desert

Jessica Shankleman
clock • 1 min read

Ivanpah concentrated solar power project comes online, offering 392MW of capacity

Ivanpah solar thermal plant aerial shotArising out of the Californian desert, the world's largest concentrated solar power plant has become fully operational, developer NRG Solar confirmed late last week.

The 392MW Ivanpah Solar Electric Generating System achieved the milestone on 31 December, three months after producing first power, NRG confirmed for the first time. The project is the largest of its kind in the world, delivering power for up to 140,000 homes.

The system works by directing sunlight from hundreds of mirrors onto a central tower, which produces steam to drive a turbine that then generates electricity.

The project uses BrightSource Energy technology and is backed by a series of investors, including $168m from Google and a $1.6bn loan guarantee from the US government.

"Cleantech innovations such as Ivanpah are critical to establishing America's leadership in large-scale, clean-energy technology that will keep our economy globally competitive over the next several decades," said Tom Doyle, president of NRG Solar in a statement.

"We see Ivanpah changing the energy landscape by proving that utility-scale solar is not only possible, but incredibly beneficial to both the economy and in how we produce and consume energy."

More on Solar

Iran War: UK solar installations soar, as oil prices jump to highest level in four years

Iran War: UK solar installations soar, as oil prices jump to highest level in four years

Growing fears of renewed hostilities between the US and Iran see oil prices hit highest point since the start of the conflict, while new data shows UK solar and heat pump installations rose sharply in March

Michael Holder
clock 30 April 2026 • 5 min read
 Virgin Media O2 inks 10-year solar PPA with egg Power

Virgin Media O2 inks 10-year solar PPA with egg Power

Under agreement, egg Power will supply renewable energy from a new solar farm in Suffolk that is expected to be operational from 2027

clock 29 April 2026 • 1 min read
'Hitting records left, right and centre': Gas generation hits record low 1.2 per cent share of the grid

'Hitting records left, right and centre': Gas generation hits record low 1.2 per cent share of the grid

National Energy System Operator confirms record low electricity share for gas generation on Wednesday afternoon, as solar output surged to new record high

James Murray
clock 24 April 2026 • 3 min read