Fusion startups and investors risk deepening fissures if some key disagreements aren't settled amicably.

Why choose fossil fuels or electricity when you can have both? NOC Energy has figured out how to hybridize heavy industry.

Nuclear startup X-energy hit the road today to sell prospective investors on its initial public offering.

In a first, the U.S. Energy Information Agency said it will require data centers to disclose details of their energy use.