Big Tech's Nuclear Power Play: Real or Rhetoric?

Advanced nuclear reactors, like small modular reactors (SMRs), offer an energy solution that could sidestep the intermittency issues of solar and wind. Data centers require constant, stable power, and nuclear energy could deliver this without the carbon emissions of fossil fuels. Big Tech’s involvement adds momentum, funding, and visibility to an industry that has struggled with public perception. The partnerships between companies like Amazon and Kairos Power suggest a willingness to invest in long-term, sustainable solutions. If successful, next-gen nuclear could reduce the strain on power grids, which are already buckling under the demands of AI-driven data centers. The technology’s scalability and potential for localized deployment also make it attractive. For regions like the Pacific Northwest, where renewable resources like hydropower are already heavily utilized, adding nuclear could allow for a diversified, low-carbon energy portfolio.

Nuclear power projects are notorious for delays and cost overruns. A study of 180 nuclear projects found that 175 exceeded budgets and timelines, and advanced designs like SMRs are no exception. Building a nuclear plant is not just expensive—it’s slow. The KLT-40S reactor in Russia took 13 years to complete, and China’s recent reactors took more than twice the promised time. These delays contradict the urgency of meeting AI’s escalating power needs. Then there’s the cost: nuclear-generated electricity in the U.S. is three times more expensive than solar or wind. If Big Tech passes these costs to consumers, the affordability of cloud services and AI applications could suffer. And while nuclear is clean at the point of generation, the mining, processing, and long-term storage of radioactive waste remain unresolved environmental and ethical issues. Promising a nuclear future without addressing these realities risks creating more problems than it solves.

Nuclear power is not new, but its global share of electricity production has halved over the last 30 years, now sitting at 8.8%. Renewables like wind and solar, meanwhile, are growing rapidly. The U.S. Department of Energy has pushed initiatives like the Natrium and Xe-100 reactors, but delays have plagued these projects. Against this backdrop, Big Tech’s nuclear announcements seem ambitious, but they are not unique—similar claims have been made in the past without fruition. As AI continues to drive up energy demand, the question is whether nuclear can realistically scale up to meet the challenge in time.