
The AI Boom Is Bringing Nuclear Power Back — And Investors Are Betting Billions on It
Big Tech Turns to Nuclear Artificial intelligence has created an unexpected winner far beyond semiconductors and software: nuclear power. As technology companies race to build enormous data centres capable of training and operating increasingly powerful AI systems, electricity is becoming one of the industry's most important constraints — and some of the world's largest companies are turning towards reactors that only a few years ago appeared to belong to an ageing industry. Microsoft is supporting the restart of a retired American nuclear reactor. Google has agreed to buy electricity from a planned fleet of advanced reactors. Amazon is backing projects that could eventually exceed five gigawatts, while Meta says agreements involving existing and future reactors could support as much as 6.6GW of nuclear capacity by 2035. At the same time, hundreds of millions of dollars are flowing into advanced-reactor developers and enormous energy transactions are being justified partly by the electricity demands of the emerging AI economy.