The U.S. Department of Energy closed a loan of up to $1.9 billion to NextEra Energy on Tuesday, Sept. 8, to help restart the Duane Arnold Energy Center in Iowa, a 615-megawatt nuclear plant tied to a 25-year power purchase agreement with Google.
The federal financing turns a previously announced power deal into a more concrete infrastructure commitment. Google agreed with NextEra last year to buy electricity from the plant as the technology company expands cloud and artificial intelligence operations. Duane Arnold stopped operating in 2020 and is targeted to return by the first quarter of 2029, subject to U.S. Nuclear Regulatory Commission licensing and other approvals.
Federal financing moves the restart forward
The Energy Department’s Office of Energy Dominance Financing said the loan reached financial close Tuesday. NextEra described the transaction as a combined conditional commitment and closing that moves the project closer to restoring Iowa’s only nuclear power plant.
The plant would return 615 megawatts of continuous generation to the regional grid. The department said that is enough electricity for nearly 500,000 homes and projected the work would create almost 1,500 construction jobs and more than 450 operating jobs. Those figures are government estimates, not completed results.
Reuters independently reported the financing and Google agreement, noting that no mothballed U.S. nuclear plant has yet resumed operations despite several active restart projects. TechCrunch reported that the loan is the second recent federal commitment connected to a nuclear restart serving major technology demand, following financing for Constellation Energy’s planned restart at Three Mile Island.
AI demand is reshaping the energy map
The deal matters because electricity procurement has become a strategic constraint on AI growth. Data centers need large amounts of reliable power, while new generation and transmission projects can take years to permit and build. Restarting an existing reactor offers a potential source of around-the-clock electricity, but it still carries regulatory, engineering, schedule and cost risks.
For Google, the agreement secures a long-duration power source near a growing technology footprint. For NextEra, a large corporate buyer improves the commercial case for an expensive restart. For the federal government, the loan uses public financing to accelerate generation capacity that officials say is needed for rising regional demand.
The arrangement also shows how AI infrastructure decisions now extend well beyond chips and data centers. They affect utility investment, public lending, grid planning and the timing of major energy assets. Technology companies seeking more compute are becoming long-term participants in power markets, and their contracts increasingly influence which plants get built, preserved or brought back into service.
The restart is not guaranteed
NextEra said it is conducting inspections, engineering evaluations and operational-readiness work under federal, state and local oversight. The Iowa Utilities Commission authorized construction and operation in June, but NRC licensing remains necessary before Duane Arnold can restart.
The closed loan is therefore a significant financing milestone, not proof that the reactor will return on schedule. The next test is execution: whether NextEra can complete the refurbishment, secure the remaining approvals and deliver the promised capacity by early 2029.