Constellation Energy has secured a conditional loan commitment of up to $5 billion from the U.S. Department of Energy (DOE) to expand nuclear power output across eight existing facilities in Illinois, Maryland, and Pennsylvania.
The proposed financing would support reactor upgrades and modernization projects capable of adding nearly 1.1 gigawatts (GW) of nuclear generating capacity, according to the DOE. The additional electricity would serve the PJM Interconnection and Midcontinent Independent System Operator (MISO) power grids.
The financing would cover potential upgrades at six Illinois nuclear plants—Braidwood, Byron, Clinton, Dresden, LaSalle and Quad Cities—as well as Calvert Cliffs in Maryland and Limerick in Pennsylvania.
The announcement comes as U.S. electricity demand accelerates, driven partly by artificial intelligence, data center development and industrial electrification, prompting utilities and technology companies to pursue additional round-the-clock generation capacity.
Constellation has already committed billions of dollars to increasing output from its existing nuclear fleet, supported by long-term electricity supply agreements with major technology companies.
Recent 20-year agreements with Google and Amazon have helped underpin more than $7 billion in planned investments to add approximately 1,080 megawatts (MW) of nuclear capacity.
Under an agreement announced earlier this month, Google will support the addition of 890 MW of nuclear generating capacity through upgrades at 11 reactors across Illinois, Pennsylvania and New Jersey. The investment associated with the arrangement exceeds $4.3 billion.
Amazon separately signed a 20-year agreement in September supporting a 190-MW expansion at Constellation’s Calvert Cliffs nuclear facility in Maryland.
A separate agreement with Meta, announced in 2025, supports another 30 MW of nuclear capacity at the Clinton facility in Illinois.
The proposed DOE financing could lower borrowing costs and accelerate these types of investments, allowing Constellation to increase electricity production without constructing entirely new nuclear power stations.
Unlike new nuclear construction, reactor uprates increase the generating capacity of operational facilities through equipment improvements and efficiency upgrades, potentially delivering additional power on shorter development timelines.
The loan commitment also forms part of the DOE’s Utility Power Reactor Incremental Scaling Effort (UPRISE), an initiative launched in March 2026 to accelerate nuclear capacity expansion.
Earlier this month, the DOE announced a separate conditional loan commitment of up to $4.2 billion for Vistra to support nuclear upgrades in Ohio and Pennsylvania, potentially adding 433 MW of generating capacity.
Together, the two conditional commitments represent up to $9.2 billion in proposed federal financing for additional U.S. nuclear generation.
However, Constellation’s $5 billion commitment remains subject to due diligence, final financing agreements and other conditions. The company has also not made final investment decisions on every potential upgrade covered by the financing.
The announcement underscores the expanding role of existing nuclear facilities in meeting U.S. electricity demand, with federal financing and long-term corporate power agreements increasingly supporting investment in additional nuclear capacity.
By Charles Kennedy for Oilprice.com
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Source: finance.yahoo.com — article syndicated from the publisher’s feed; all rights remain with the original publisher.
