DOE offers up to $5 billion for nuclear upgrades tied to tech giants’ power deals

The U.S. Department of Energy has offered Constellation Energy a conditional loan commitment of up to $5 billion to increase output at eight nuclear plants. The upgrades would add nearly 1.1 gigawatts of capacity, while Google, Amazon and Meta have already bought most or all of the additional electricity from seven facilities, according to TechCrunch.

More power from reactors already running

DOE announced the commitment on October 27. It is not a completed loan: Constellation must meet technical, legal, environmental and financial conditions before the department signs definitive financing documents and releases funds. The announcement therefore establishes the government’s intent to finance the work, rather than a transfer of money or the completion of any reactor upgrade.

Constellation plans to increase output at 11 existing reactors through projects known as uprates. These raise a reactor’s generating capacity rather than add a new plant. TechCrunch describes the work as often involving more highly enriched uranium and equipment upgrades that allow a reactor to handle higher power levels. DOE’s commitment covers both uprates and modernization across the company’s fleet.

The eight plants covered

• Illinois: Braidwood, Byron, Clinton, Dresden, LaSalle and Quad Cities.
• Maryland: Calvert Cliffs.
• Pennsylvania: Limerick.

The commitment also includes an option to finance future uprates at additional Constellation facilities. DOE places the work within President Trump’s executive order calling for the department to facilitate five gigawatts of power increases from existing reactors. The department launched its UPRISE initiative in March 2026 to accelerate that approach to increasing nuclear generation.

The technology customers are already lined up

The federal offer follows spending commitments Constellation had already made. The company said it had committed more than $7 billion to add 1,080 megawatts of nuclear capacity to supply Google, Amazon and Meta, TechCrunch reported. Those purchases connect the reactor upgrades to the technology companies’ search for electricity to support their AI data centers, rather than leaving the added output without identified buyers.

Google is the confirmed buyer of additional electricity from Limerick in Pennsylvania and four Illinois plants. Amazon is buying electricity from Calvert Cliffs in Maryland. Meta’s arrangement effectively buys the entire output of Clinton in Illinois, according to TechCrunch. These are not identical purchasing arrangements: the report distinguishes Google’s additional-power purchases from Meta’s commitment covering effectively a whole plant.

Cheaper financing is not a household-bill guarantee

DOE’s public case extends beyond the technology buyers. It says the upgrades will strengthen reliability and lower electricity costs across the PJM and MISO grid regions. The department also estimates that the projects will add enough electricity to power more than 930,000 homes and support more than 10,000 project-related jobs. Those are the government’s projected benefits, not completed outcomes.

Constellation’s narrower claim concerns the expense of funding construction: the commitment could lower financing costs. Its announcement does not say whether the projects will maintain or reduce electricity rates, and the company would not confirm DOE’s affordability claim to TechCrunch. TechCrunch reported no evidence that the new capacity would lower residential prices. That leaves household savings unproven, rather than showing bills must rise.