Alliant Energy Secures DOE Loan for Iowa and Wisconsin Projects

The U.S. Department of Energy has officially closed a $5.1 billion loan package with Alliant Energy Corporation to fund power generation and energy storage infrastructure across Iowa and Wisconsin. According to the Department of Energy, the 30-year financing deal is designed to inject more than 2.6 gigawatts of power generation capacity onto the regional grid while targeting more than $1 billion in electricity cost savings for ratepayers in both states.

The federally backed financing represents the Trump Administration’s tenth financial close, and the sixth and seventh utility financing completed through the Office of Energy Dominance Financing. Federal officials frame the capital infusion as a direct response to a surge in electricity demands driven by artificial intelligence data centers and an increase in domestic manufacturing.

“These investments will drive down energy costs for families and businesses in Iowa and Wisconsin, strengthen our nation’s electric grid, and fuel American prosperity for decades to come,” U.S. Secretary of Energy Chris Wright said in a news release.

Where the Money Goes Across Two States

Alliant Energy executives report that accessing the full, lower-interest federal loan package could yield lifetime-adjusted interest savings of $800 million for Iowa customers and $400 million for Wisconsin customers. With these funds, the utility is evaluating a suite of infrastructure proposals, though the company is not limited to this specific roster.

Why is your power bill going up?The average US home is forecast to pay 18.2 cents per kilowatt-hour for electricity in 2026, up from 17.3 cents in 2025, per the Energy Information Administration. The biggest reasons are rebuilding an aging grid, pricier natural gas and weather.… pic.twitter.com/RelujrbWSm

— https://x.com/CassidyAWaters/status/2115459838285434905

The planned projects outlined in corporate disclosures include 1.6 GW of new natural gas generation, 240 megawatts of increased capacity at existing natural gas facilities, 1 GW of energy storage, and 2 billion cubic feet of liquefied natural gas storage. Lisa Barton, president and CEO of Alliant Energy, emphasized the necessity of these moves.

This federally backed financing helps lower the cost of building the generation and critical energy infrastructure our customers depend on, while strengthening the grid and supporting long-term savings. We are focused on meeting growth responsibly, maintaining affordability and creating lasting value for customers and communities across Iowa and Wisconsin.

In addition to fossil fuel infrastructure, Alliant plans to support battery energy storage systems, commonly known as BESS. These lithium-ion facilities charge when energy is plentiful and can help supplement energy when demand is high. Potential sites include a project in Lansing, two BESS projects underway in Wisconsin, and a liquefied natural gas storage facility being built in Rock County, Wisconsin.

Data Center Growth and Local Resistance

Earnings reports from Alliant project 60% load growth by 2031, fueled largely by at least 3.4 gigawatts of contracted demand from data centers.

While the utility has proposed multiple new natural gas generating plants in Iowa—such as the Bobcat Energy Center in Marshalltown—officials maintain that these specific plants are not being built to serve data centers. However, clean energy advocates and local community groups fighting developments like the Morgan Valley Energy Center in Linn County allege that the utility is using anticipated data center demands as a rationale for expanding fossil fuel capacity.

The friction is already translating into local political battles. Linn County supervisors recently voted to deny a rezoning request from Alliant for the Morgan Valley plant, a decision that could potentially be overruled by the Iowa Utilities Commission. The county is a focal point for tech investments, including data centers from Google and QTS.

The federal government is leaning heavily into nuclear power as well. The Department of Energy has separately agreed to loan up to $1.9 billion to NextEra Energy to restart the Duane Arnold Energy Center, a nuclear facility also located in Linn County. Google has already contracted to purchase more than 90% of the energy produced at that plant.

Aligning With Federal Energy Directives

The financing package directly advances President Donald Trump’s Executive Order Strengthening the Reliability and Security of the United States Electric Grid. That directive highlights an unprecedented surge in electricity demand nationwide, driven by artificial intelligence data centers and an increase in domestic manufacturing.

U.S. Energy Secretary announces loan package to help lower Wisconsin electricity costs

EDF Director Gregory A. Beard noted that the financing program aims to put capital to work. By expanding reliable energy infrastructure, federal officials argue the nation can secure its energy grid and lower electricity costs.

Construction tied to the loan package is expected to create hundreds of construction-related jobs across Iowa and Wisconsin.