NextEra Energy Secures $1.9 Billion DOE Loan to Restart Duane Arnold Nuclear Plant in Iowa

NextEra Energy (NYSE: NEE) and the U.S. Department of Energy (DOE) have finalized a loan of up to $1.9 billion. This funds the restart of the Duane Arnold Energy Center in Iowa.

The press release highlights that this financing is a key step in bringing the 615-megawatt nuclear facility back online. The plant shut down in 2020. If it gets the needed regulatory approvals, NextEra aims to restart it by early 2029.

The project aligns with the U.S. goal to boost reliable power as electricity demand grows. Nuclear energy remains vital for America’s low-carbon power landscape.

NextEra’s Energy Mix Spans Nuclear to Renewables

NextEra Energy has a broad energy portfolio spanning renewables, nuclear power, natural gas and battery storage. Through NextEra Energy Resources, the company operates more than 40,000 MW of generating capacity and is expanding its infrastructure to meet rising U.S. electricity demand.

                                NextEra Energy Resources: An Energy Pioneer

John Ketchum, chairman, president and CEO of NextEra Energy, said:

“Restarting Duane Arnold is about delivering new power to meet new demand while generating billions of dollars in economic value for Iowans. Just as importantly, it shows how America can support rapid economic growth and rising electricity demand while helping keep power affordable for existing customers.

By bringing new generation online to serve new demand, we can strengthen the grid, create hundreds of good-paying jobs and help ensure Iowa families and businesses are not asked to bear the costs of growth. We appreciate the Administration’s leadership in advancing America’s nuclear renaissance and share its commitment to an all-of-the-above energy strategy that expands supply, strengthens energy security and keeps America competitive.”

Duane Arnold Restart Adds Nuclear Power to Iowa Grid

Located in Linn County, the Duane Arnold Energy Center ran for over four decades before closing in 2020. NextEra is now navigating licensing, engineering, inspections, and readiness work to restart the facility.

In June, the Iowa Utilities Commission gave NextEra a certificate to construct and operate the facility, marking another milestone.

The DOE financing comes from its Office of Energy Dominance Financing, which supports efforts to reactivate existing nuclear assets.

For the U.S. power sector, restarting a current reactor offers a different option than building a new one. Duane Arnold already has a developed site and infrastructure, though the restart still needs extensive technical and regulatory work.

Electricity demand is rising nationwide. Data centers, manufacturing, and industrial activities are driving higher power use, highlighting the need for reliable generation that runs continuously.

U.S. Deputy Secretary of Energy James P. Danly said:

“President Trump has set an ambitious course to restore American nuclear leadership, and the restart of Duane Arnold Nuclear Plant in Iowa marks another step in advancing America’s nuclear renaissance. Returning 615 megawatts of reliable baseload generation will drive down electricity costs, while supporting thousands of American jobs.

This Administration is pursuing a comprehensive nuclear strategy, restarting existing reactors, increasing the output of our nuclear fleet, and accelerating new construction, to build the abundant, affordable, and reliable power system required for American prosperity and reindustrialization.”

Nuclear Already Supplies 18% of U.S. Electricity

The scale of America’s nuclear fleet also highlights why restarting existing reactors is becoming a focus of U.S. energy policy. EIA data shows that the country has roughly 98 gigawatts of nuclear generating capacity.

• Explaining further, the latest EIA Short-Term Energy Outlook forecasts nuclear power to provide 18% of U.S. electricity generation in both 2026 and 2027.
• At the same time, U.S. electricity sales are expected to reach 4,135 billion kWh in 2026 and 4,211 billion kWh in 2027, driven in part by growing data center demand and increased manufacturing activity.

Nuclear plants also operate at high utilization rates, with the EIA reporting an average capacity factor of 91% in 2025.

This reflects the high utilization of nuclear reactors, which operate for long periods. Restarting existing reactors could be crucial as the U.S. seeks reliable power without relying solely on fossil fuels.

$1.9 Billion Financing Supports Nuclear Restart

The Duane Arnold project is set to bring significant economic benefits, too.

• A study cited by NextEra estimates the recommissioning could create $15.9 billion in economic impact across the U.S. and $9.1 billion in Iowa during construction and 25 years of operation.
• For Linn County, the study estimates an economic impact of $8.2 billion and $3.2 billion in labor earnings.

The project is expected to generate 393 new full-time jobs during operations, raising total direct employment at the site to about 433 positions. Over its lifetime, it could produce around $75 million in tax revenue.

However, the economic case is just one part of the investment.

Nuclear Restart Fits Into U.S. Energy Strategy

The DOE financing supports the Trump administration’s push to expand U.S. nuclear power and rebuild the domestic nuclear industry.

The administration’s 2025 executive order, “Reinvigorating the Nuclear Industrial Base,” pointed to the country’s slow pace of nuclear development and weakening domestic fuel-cycle infrastructure. It also highlighted growing reliance on foreign reactor designs and nuclear fuel services.

Against this backdrop, restarting existing nuclear plants can help preserve reliable power while the U.S. works to develop new reactors and strengthen its nuclear supply chain.

The DOE said the Duane Arnold financing is the third nuclear plant restart it has supported under the current administration. The 615-MW facility would add more reliable, low-carbon electricity to the Midwest grid and help meet growing power demand.

The project still requires regulatory approvals and further readiness work. However, the $1.9 billion financing moves Duane Arnold another step closer to returning to service.

• ALSO SEE: Oklo Stock Rises as DOE Approves Radioisotope Pilot Using Recycled Nuclear Fuel 

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