Impact Investing | September 3, 2024

Last Energy raises $40 million for next-generation nuclear power plants

Amy Cortese
ImpactAlpha Editor

Amy Cortese

The Plant Vogtle nuclear power plant that went online in Georgia last year was the first nuclear addition to the grid in three decades. The conventional reactor cost $30 billion amid delays and cost overruns.

But nuclear power is back in favor as governments and utilities search for low-carbon “baseload” power and startups design reactors that are smaller, more modular and less expensive than conventional plants.

Washington, DC–based Last Energy, raised $40 million to build 20-megawatt modular reactors, starting in Europe. The Series B round was led by Austin, Texas-based Gigafund, Autodesk Foundation and family offices.

Plug and play

Last Energy plans to serve industrial and data center customers by building light-water reactors on site and selling the power to the business. The company’s off-the-shelf technology and modular construction will allow it to build plants in as little as two years.

“Last Energy’s approach to micro-modular nuclear power has the potential to fundamentally change how we think about energy production, offering a rapid, scalable and economically viable solution to decarbonize heavy industry,” said Autodesk Foundation’s Ryan Macpherson.

Also this month, modular nuclear startup Aalo Atomics snagged $27 million from Fifty Years and other investors. Deep Fission, which is building underground reactors, raised $4 million from 8VC.