Nobody said building a fusion power plant would be easy. Physicists and engineers have been working for decades to crack the problem. But over the last year or so, fusion startup Zap Energy took a ...

Ambrosia Energy wants to build power plants in less than 12 months while undercutting natural gas. It hopes to build gigawatts worth by 2030.

Dunne: Other companies focused on fusion energy are still in the basic research stage; they still need to prove whether their approach is ever able to achieve net energy gain, which is an open-ended ...

A nuclear-power startup said it has found a workaround for the industry’s twin stumbling blocks: the expense and time it takes to build reactors. Project developer Alva Energy said it could add 10 ...

Nuclear startup Antares said Tuesday it has raised $96 million in Series B funding as it pursues its small modular reactor design. The round, which was led by Shine Capital with participation from Alt ...

For a brief moment, no startup rode the data center boom better than Fermi Inc. Co-founded by a former Texas governor and a brash entrepreneur, Fermi offered companies racing to build data centers the ...

Critical Energy is turning rocket engines into geothermal power plants, and it wants to build 300 GW per year by 2045.

Geothermal power plants face a supply chain bottleneck no one is talking about: a global turbine shortage. A SpaceX veteran ...

Trump Media is entering nuclear fusion via a $6B merger with TAE Technologies, aiming to create a publicly traded fusion company with plans for a first power plant by 2026. Fusion investment is ...

Founded by Bill Gates, TerraPower is one of the nuclear industry’s leading startups. But the fiery history of its cooling technology is raising alarms. Third in an occasional series on companies ...

Fusion power startup Helion Energy Inc. has closed a $465 million funding round led by Thrive Capital. The Series G deal also included contributions from SoftBank Vision Fund 2, Lightspeed and more ...