DOE Closes a $1.9 Billion Loan to Restart 615 MW at Duane Arnold, Where Google Holds a 25-Year Contract

The U.S. Department of Energy closed a loan of up to $1.9 billion on September 8, 2026. The money restarts the Duane Arnold Energy Center, a 615-megawatt nuclear plant in Palo, Linn County, Iowa. NextEra Energy is the borrower. The plant stopped running in August 2020 after 45 years. A derecho damaged it, and repairs failed to pencil out. NextEra targets commercial operation no later than the first quarter of 2029.

The lender is the Office of Energy Dominance Financing, the renamed Loan Programs Office. Duane Arnold is one of three U.S. nuclear plants that office is now financing back onto the grid.

The Output Is Already Sold

Google holds a 25-year agreement for the plant’s energy. NextEra announced it last October alongside the restart plan. Google will take the power as a 24/7 carbon-free supply for its cloud and AI infrastructure in Iowa. Central Iowa Power Cooperative is a current minority owner. It buys the remaining output on the same terms as Google.

NextEra also agreed to buy the combined 30% interest held by that cooperative and by Corn Belt Power Cooperative. Those deals take the company to 100% ownership of Iowa’s only nuclear station.

Why It Matters

Deputy Secretary of Energy James P. Danly said returning 615 megawatts of baseload generation “will drive down electricity costs.” Read the contract structure before accepting that. The output goes to Google and to one cooperative for 25 years. The restart therefore adds no uncommitted supply for other regional buyers to bid on. The reliability value is real. The price effect for a neighboring ratepayer is a separate question, and this transaction does not answer it.

For anyone timing a large load interconnection in the Midwest, the schedule is the useful signal. This unit already exists, already has a site, and already has a buyer. It still needs until 2029 to deliver a megawatt-hour.

Where the Announcements Disagree

DOE and NextEra published on the same day with different operating headcounts. DOE said the project will “support more than 450 jobs during operations.” NextEra said “more than 400 permanent high-paying jobs during operations.” Both put construction at roughly 1,500 jobs. NextEra cites a study estimating more than $9 billion in economic benefits for Iowa over 25 years. The same study puts tax revenue near $75 million over the life of the project.

One more gap is worth noting. NextEra’s own release never names Google. The offtaker that makes the restart financeable appears in DOE’s framing, in trade coverage and in the cooperative’s announcement. It does not appear in the borrower’s statement about the loan.

What Still Has to Happen

The money closed before the license did. DOE stated the restart depends on “required U.S. Nuclear Regulatory Commission licensing approvals.” NextEra says it continues to work through licensing under NRC oversight. The financing risk moved onto the federal balance sheet first. The regulatory risk stays open, and it sets the real date.

Critical Perspective

The largest number in this package carries the thinnest sourcing. NextEra puts more than $9 billion of economic benefit to Iowa on a study it cites but does not name. DOE repeats the jobs figures and raises the operations count to 450. Neither release publishes the study, its author or its assumptions. Treat the $9 billion as an advocacy figure until someone shows the model behind it.

The ownership change deserves the same scrutiny as the loan. Central Iowa Power Cooperative and Corn Belt Power Cooperative sell their combined 30% stake. The first then buys back the output Google does not take. Those members trade an equity position in a 615 MW asset for a supply contract negotiated next to a hyperscaler. That could still be the better deal for a cooperative balance sheet. Nobody has published the price, so nobody outside the negotiation can weigh it.

Sources

• U.S. Department of Energy, Energy Department Closes $1.9 Billion Loan to Restart Duane Arnold Nuclear Plant, September 8, 2026
• POWER Magazine, DOE Closes $1.9-Billion Loan to Restart Duane Arnold Nuclear Plant, September 8, 2026
• NextEra Energy, U.S. Department of Energy Closes Up to $1.9 Billion Loan to Restart NextEra Energy’s Duane Arnold Energy Center, September 8, 2026
• Central Iowa Power Cooperative, NextEra Energy and Google Announce New Collaboration to Accelerate Nuclear Energy Deployment in the U.S., October 2025

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