Google announced a massive 20‑year power purchase agreement with Constellation Energy that will provide up to 3,590 megawatts of electricity for the tech giant’s data‑center operations across the United States. The deal, described by both companies as the nation’s largest single power contract, includes roughly 890 MW sourced directly from Constellation‑owned nuclear plants that will be upgraded to increase output.
Key components of the agreement
Under the arrangement, Google will receive 890 MW of electricity from multiple nuclear facilities that Constellation plans to modernize, with the first upgraded power expected to flow to Google’s data centers in 2028. In addition, Google secured a long‑term supply of 2,700 MW from Constellation’s broader portfolio within the PJM Interconnection grid. This latter portion is not tied to a specific generation source, giving Constellation revenue certainty for its existing operating plants.
Investment and regional impact
The partnership is projected to trigger more than $4.3 billion in new capital spending by Constellation. The company will focus upgrades on 11 nuclear units located in Illinois, Pennsylvania, and New Jersey—states that sit within the PJM grid, the largest electric interconnection in the country. By enhancing these reactors, Constellation aims to add reliable, clean capacity to a grid that is increasingly under pressure from data‑center demand.
Response to PJM’s “bring‑your‑own‑power” proposal
PJM management has recently floated a proposal that would require data‑center customers connected to its 13‑state network to either generate their own power or risk being disconnected during peak‑demand periods. Google’s agreement with Constellation is positioned as a direct response, ensuring a stable supply of clean electricity without forcing the tech company to build its own generation facilities.
Statements from company leaders
“We’re committed to meeting our growth responsibly by actively investing in clean, reliable power that brings new capacity to our nation’s grids,” said Amanda Peterson Corio, Google’s global head of energy and power. Constellation highlighted the deal as a testament to the growing role of nuclear energy in supporting the nation’s digital infrastructure.
Broader industry context
The contract follows a trend of major technology firms securing long‑term power agreements to lock in low‑cost, low‑carbon electricity for their expanding data‑center footprints. Over the past two years, Constellation has also partnered with Microsoft to restart the Three Mile Island reactor in Pennsylvania, while Google previously arranged for the restart of a NextEra Energy nuclear plant in Iowa.
These deals reflect a broader industry shift toward securing stable, domestic energy sources amid rising concerns about grid reliability, climate goals, and the high electricity consumption of data‑center operations. By investing in nuclear upgrades, Google and Constellation are positioning themselves at the forefront of a clean‑energy transition that supports both economic growth and environmental stewardship.
Original reporting: Appleton, WI News Feed (HLL/CB) — read the source article.
