Google-Backed Nuclear Plant Gets $1.9B U.S. Loan to Restart for AI Power

Last October, Google announced it would bring the shuttered Duane Arnold Energy Center back online. Now, the facility’s owner, NextEra Energy, has secured a $1.9 billion loan from the U.S. Department of Energy to finance the refurbishment.

The loan is the second major government financing for a nuclear restart. Last year, the Department of Energy extended a $1 billion loan to Constellation Energy to restart a reactor at Three Mile Island, which is expected to generate 835 megawatts by 2028.

Deputy Secretary of Energy James Danly said the Iowa plant’s restart in 2029 will “drive down electricity costs,” though he did not elaborate. According to NextEra CEO John Ketchum, just 50 megawatts will be set aside for the local power cooperative. That capacity would cover 18% of Iowa’s demand growth since 2021, the year before ChatGPT was released.

The Duane Arnold Energy Center has not operated since 2020, when an intense rainstorm damaged the plant. Rather than repair it, NextEra mothballed it, as cheap natural gas made nuclear power economically unappealing at the time. But the landscape has shifted: the sudden rise of AI, combined with broader electrification, has driven a scramble for new generating sources. New data centers are expected to nearly triple the sector’s electricity demand by 2035, according to recent forecasts.

Google is reportedly looking to build up to six data centers near the Duane Arnold site in Linn County, Iowa. The company joins a trend of tech giants turning to nuclear power to meet their clean-energy needs. Microsoft signed a deal with Constellation Energy two years ago to restart a Three Mile Island reactor. Meta is buying all the clean energy attributes from Constellation’s Clinton Clean Energy Center in Illinois, a 1.1-gigawatt plant that was in danger of closing.

The revived interest in nuclear comes after decades of flat electricity demand, with shuttered plants now seen as a fast way to provide clean, firm power for AI infrastructure.

Why This Matters

The loan signals that the U.S. government views revived nuclear power as a key source of electricity for AI data centers, potentially spurring similar restarts.
For Iowa residents, the plant will supply only 50 megawatts locally — a small fraction of the total output — raising questions about how much the restart benefits the local community versus Big Tech.
The success of the Duane Arnold restart could set a precedent for other shuttered nuclear plants, affecting energy markets, carbon goals, and electricity prices nationwide.

Background

Nuclear power plants have been retired across the U.S. for years due to competition from cheap natural gas and renewables. However, the explosive growth of AI and data centers, along with corporate clean-energy commitments, has created a new demand for reliable, carbon-free electricity. Tech companies like Google, Microsoft, and Meta are now investing directly in nuclear capacity, either through power purchase agreements or by financing restarts. The U.S. Department of Energy’s loan programs, supported under the Trump administration, are accelerating these efforts.

Key Perspectives

Tech Companies (Google, Microsoft, Meta): They need massive, round-the-clock clean power to run AI data centers and meet net-zero goals. Nuclear restarts offer a faster path than building new reactors, and long-term contracts provide price certainty. NextEra Energy and Constellation Energy: Utilities and plant owners see a profitable opportunity to revive dormant assets with government support. The loans reduce financial risk, while tech firms guarantee demand for decades. Critics and Local Communities: Skeptics question the cost — loan repayments must come from ratepayers or corporate customers — and caution that nuclear restarts face technical, regulatory and waste-disposal challenges. Local communities may receive minimal direct power from the plant, as most output is earmarked for data centers.

What to Watch

Construction milestones at Duane Arnold: delays could push the 2029 restart date, affecting Google’s data center timeline.
Whether Iowa regulators approve Google’s planned data centers near the plant; local zoning and grid interconnection will be key.
Announcements of further DOE loans for other shuttered plants, such as Palisades in Michigan or others under consideration.

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