Duane Arnold Plant Set for Revival
Iowa’s Duane Arnold Energy Center has been offline since 2020 after an intense storm and heavy rainfall damaged the facility.
NextEra Energy subsequently mothballed the plant. At the time, abundant and inexpensive natural gas had made nuclear power less attractive from an economic standpoint.
The energy landscape has changed significantly since then, particularly because of the rapid growth of artificial intelligence and data centres.
$1.9 Billion Loan From the US Government
The Department of Energy is providing NextEra with a $1.9 billion loan to support the refurbishment of the nuclear facility.
It is the second major US government loan aimed at reviving a shuttered nuclear reactor. Last year, the department provided a $1 billion loan to Constellation Energy to support the restart of a reactor at Three Mile Island.
The latest financing signals growing government interest in nuclear energy as a source of reliable electricity for an increasingly power-hungry technology sector.
Restart Target Set for 2029
NextEra is targeting a 2029 restart for the Duane Arnold facility.
Following refurbishment, the plant is expected to have a total generating capacity of 615 megawatts, including an additional 14 megawatts that NextEra plans to gain during the upgrade.
Around 50 megawatts will be reserved for the local electric cooperative, according to NextEra.
Google’s Data Centre Plans
The project is closely connected to the rapidly growing electricity requirements of AI infrastructure.
Google is reportedly considering building up to six data centres near the Duane Arnold Energy Center.
AI systems, cloud computing and large-scale data processing require enormous amounts of electricity, often on a continuous basis. This has encouraged major technology companies to explore nuclear power as a source of dependable, low-carbon electricity.
AI Is Driving New Power Demand
US electricity demand remained relatively flat for years, but that trend has changed as AI infrastructure expands and more parts of the economy become electrified.
New data centres are expected to drive a substantial increase in electricity consumption, with demand from the sector projected to nearly triple by 2035.
That has made existing nuclear facilities increasingly attractive because they can provide large quantities of electricity without the long development timeline associated with entirely new power plants.
Microsoft and Meta Also Turn to Nuclear
Google is not the only technology company looking at nuclear energy.
Microsoft signed an agreement with Constellation Energy to restart a reactor at Three Mile Island. The reactor is scheduled to return to operation in 2028 with an expected output of 835 megawatts.
In Illinois, Constellation Energy’s Clinton Clean Energy Center found a major technology customer in Meta. Meta is purchasing the plant’s clean-energy attributes while the electricity itself continues to flow into the local grid.
A New Chapter for US Nuclear Power
The revival of retired nuclear plants could provide the US with additional reliable generation capacity without requiring entirely new facilities to be built from scratch.
However, restarting older nuclear plants is not straightforward. Facilities that have been shut down for long periods may require extensive refurbishment, regulatory approvals and detailed safety reviews before returning to operation.
Conclusion
The $1.9 billion US government loan to support the revival of Iowa’s Duane Arnold nuclear plant marks another important step in the growing relationship between nuclear energy and the technology industry.
With the facility targeting a 2029 restart and an expected capacity of 615 megawatts, the project could provide an important source of reliable electricity as Google and other technology companies expand energy-intensive AI data centre operations. The development also highlights how the AI boom is reshaping America’s electricity strategy and bringing previously retired nuclear facilities back into focus.
