Nuclear

With federal funding windfall, X-energy advances small nuclear reactor

The Amazon-backed firm is aiming to build up to 144 of its novel Xe-100 reactors as the U.S. government seeks to revitalize an industry beset by rising costs.

By Brian Martucci . 23 September 2026

Man at a podium with sign saying "A Celebration of the Golden Era of Nuclear Power" and several flags — U.S. Energy Secretary Chris Wright addresses employees at Idaho National Laboratory on a June 2026 visit celebrating recent advancements in nuclear energy. (Natalie Behring/Getty Images)

Nuclear

Shuttered nuclear plant in Iowa gets $1.9B federal loan to restart

NextEra Energy is one of three U.S. energy companies to win backing from the Department of Energy to revive shut-down nuclear plants to meet soaring power demand.

By Maria Gallucci . 8 September 2026
Nuclear

New York’s big new bet on nuclear energy

Gov. Hochul, a Democrat, diluted New York’s climate law this year amid struggles to build large-scale renewables. Now, she’s looking to nuclear power.

By Alexander C. Kaufman . 3 September 2026
Nuclear

How much of a threat do heat waves pose to nuclear plants?

Hot water and low river levels have hampered nuclear power in Europe this summer, forcing a reckoning over plant preparedness.

By Alexander C. Kaufman . 27 August 2026
Nuclear

Nuclear startup Oklo splits its first atoms in test reactor

It’s a demonstration of the tech Oklo will use for its medical isotope business — not power plants — but marks a milestone nonetheless for the buzzy firm.

By Alexander C. Kaufman . 6 August 2026
Nuclear

Microreactor startup Valar Atomics raises $1B

Valar, which has been called “the Trump administration’s favorite nuclear startup,” faces a steep path to realizing its vision — even with a giant funding round.

By Alexander C. Kaufman . 4 August 2026
Nuclear

‘It’ll take more’: CFS nets another $1B to chase nuclear fusion dream

Commonwealth Fusion Systems has now raised a total of $4B to commercialize its nuclear fusion technology. It aims to bring its pilot reactor online next year.

By Alexander C. Kaufman . 30 July 2026
Fossil fuels

A $100M Ohio energy fund lacks transparency — and excludes renewables

JobsOhio, which is administering the new fund, has drawn criticism for limiting the opportunity to nuclear and natural gas — and for its opaque process.

By Kathiann M. Kowalski . 22 July 2026
Nuclear

Nuclear energy could be in for a big decade

The global fleet of nuclear power plants is poised to expand quickly as climate goals, security concerns, and rising demand renew interest in the energy source.

By Dan McCarthy . 17 July 2026
Nuclear

Holtec bets big on small nuclear reactors in its IPO filing

As it pivots from shutting down nuclear plants to building them, Holtec says small modular reactors can cut costs and speed construction. Now it has to prove it.

By Alexander C. Kaufman . 15 July 2026
Nuclear

America’s first nuclear plant restart may be near the finish line

After a few missed targets, Holtec says the remaining tasks to bring Michigan’s Palisades plant back online are equal to restoring service after a routine outage.

By Alexander C. Kaufman . 10 July 2026