Microsoft Builds Nuclear Team to Power AI Data Centers

What Happened

Microsoft has formed a dedicated internal team focused on nuclear energy procurement and development, according to job postings and company statements reviewed by technology reporters this week. The team will work to source nuclear power capacity to meet the electricity demands of Microsoft's expanding artificial intelligence data center network, which requires substantially more power than conventional cloud computing infrastructure.

The move marks a concrete organizational step by one of the world's largest cloud providers to secure reliable, low-carbon baseload electricity as AI workloads drive data center power consumption to record levels.

Background

Microsoft operates one of the largest data center networks globally, supporting its Azure cloud platform and AI services developed in partnership with OpenAI. The company has committed to becoming carbon negative by 2030 and has set goals to match 100 percent of its electricity consumption with zero-carbon energy sources.

AI model training and inference workloads require significantly more power than traditional cloud computing tasks. Data centers running large language models and AI inference at scale operate graphics processing units and custom accelerator chips around the clock, placing sustained and predictable demand on power grids that intermittent renewable sources such as solar and wind cannot always meet without backup generation or storage.

Nuclear power, which generates electricity continuously regardless of weather conditions, has attracted renewed interest from large technology companies as a solution to this baseload problem. Unlike natural gas or coal, nuclear generation produces no direct carbon emissions during operation.

Microsoft signed an agreement in September 2024 to restart a generating unit at the Three Mile Island nuclear facility in Pennsylvania, which had been shut down in 2019. That 20-year power purchase agreement with Constellation Energy was intended to supply the company's data centers in the mid-Atlantic region.

The New Team

The newly formed nuclear team sits within Microsoft's energy division and is tasked with identifying, negotiating, and managing nuclear power agreements across multiple regions, according to available descriptions of the group's mandate. Responsibilities include evaluating existing nuclear plant capacity available for long-term purchase agreements and assessing emerging nuclear technologies, including small modular reactors, which are compact designs intended to be built faster and at lower cost than conventional large-scale plants.

Small modular reactors are not yet commercially operational in the United States at scale, though several developers, including NuScale Power and X-energy, are pursuing regulatory approval with the Nuclear Regulatory Commission. Microsoft's team is expected to monitor and engage with that pipeline as the technology matures.

Industry Context

Microsoft is not alone in pursuing nuclear power for data center supply. Google signed an agreement in October 2024 with Kairos Power to purchase electricity from a series of small modular reactors planned to come online before 2035. Amazon Web Services has also entered agreements to acquire nuclear-powered data center sites and to support reactor development through power purchase contracts.

The International Energy Agency projected in a January 2025 report that data center electricity consumption globally could more than double by 2030, with AI identified as the primary driver of that growth. That projection has accelerated discussions between technology companies, utilities, and governments over how to expand grid capacity and diversify generation sources.

Traditional utility-scale nuclear plants in the United States face long permitting timelines, construction costs that have historically exceeded initial estimates, and operational complexity that limits how quickly new capacity can be brought online. Power purchase agreements with existing plants, as Microsoft pursued at Three Mile Island, allow companies to access nuclear generation without taking on construction risk.

What Happens Next

Microsoft has not disclosed a timeline for when the nuclear team will complete its first procurement agreements or announced specific capacity targets, and the company is expected to provide additional detail on its energy strategy at its annual shareholder meeting scheduled for later this year.