Google Signs Nuclear Power Deal to Support Growing AI Data Center Demand

Google Secures 890 MW of New Nuclear Capacity

Google and Constellation Energy have announced a long-term power agreement designed to add 890 MW of new nuclear generation capacity to the PJM electricity grid. The deal is intended to support the growing electricity requirements of Google's data centers as the company expands AI infrastructure and other cloud services.

The companies said the agreement will support the restart of the Three Mile Island Unit 1 nuclear facility in Pennsylvania, which has been renamed the Crane Clean Energy Center. The facility is expected to return to service in 2028, subject to regulatory approvals and completion of the required work.

15-Year Agreement Adds 2,700 MW

The 890 MW arrangement is part of a broader 15-year agreement between Google and Constellation covering an additional 2,700 MW of nuclear power. The companies say the arrangement will provide Google with access to nuclear-generated electricity while helping bring additional carbon-free generation onto the PJM system.

Google will purchase power and associated clean-energy attributes from Constellation under the agreement. The structure is designed to provide a long-term source of electricity for Google's operations while supporting investment in nuclear generation.

The companies did not describe the deal as power being physically delivered directly from the plant to individual Google data centers. Instead, the additional nuclear generation will contribute to the wider PJM grid that serves multiple states.

AI Data Centers Need More Reliable Power

The agreement comes as demand for electricity from AI data centers rises sharply. Training and running large AI models requires energy-intensive computing infrastructure, while the expansion of GPU clusters is increasing the amount of continuous power required by individual facilities.

Google has been investing in new data centers and AI infrastructure to support products and services including Gemini, Google Cloud and its other AI systems. Nuclear power provides a source of electricity that can operate around the clock, complementing intermittent renewable generation.

For Google, securing long-term nuclear capacity is therefore part of a broader strategy to expand computing infrastructure without relying exclusively on fossil-fuel generation.

Crane Center Expected to Return in 2028

The Crane Clean Energy Center is the former Three Mile Island Unit 1 reactor, which stopped operating in 2019 for economic reasons. Constellation announced plans to restart the reactor in 2024, subject to regulatory approvals and refurbishment work.

The Unit 1 reactor is separate from Three Mile Island Unit 2, which was permanently shut down following the 1979 nuclear accident. The current agreement concerns the restart of Unit 1 and does not involve reopening Unit 2.

Constellation expects the restarted facility to supply approximately 890 MW of carbon-free electricity to the PJM grid once operational.

Nuclear Power Becomes Part of Big Tech's Energy Strategy

Google's agreement reflects a broader move among major technology companies to secure dedicated low-carbon power as AI infrastructure expands. Data center operators increasingly need electricity that is both reliable and available at large scale, making existing nuclear facilities and potential new nuclear projects more attractive.

The agreement also gives Constellation a major technology-sector customer for the planned Crane restart. For Google, it provides a longer-term path to securing electricity as its AI computing footprint grows.

The project still depends on regulatory approvals, engineering work and the successful restart of the facility. The 890 MW capacity therefore represents planned future generation rather than electricity immediately available to Google's data centers.