Wisconsin electric and natural gas rate changes for 2026 and 2027

In December 2025, the Public Service Commission of Wisconsin (PSC) approved Alliant Energy’s unanimous rate review settlement covering years 2026 and 2027. Guided by our strategic plan and purpose-driven strategy, this settlement reflected investments in a balanced energy mix comprised of traditional, new and renewable energy sources. Collectively, this strategy positions us to deliver what matters most to our customers, communities, and the region – a responsible energy future that is cost-effective, reliable and safe.

How do these rate changes impact bills?

For the average residential customer, the approved rate adjustment equates to:

• Electric: About $4 a month increase in 2026 (~3.5%) and another $8 a month in 2027 (~6%).
• Gas: About $2 a month increase in 2026 (~3%) and another $1.50 a month in 2027 (~2%).

Visit My Account to see your individual usage.

When do the rate changes take effect?

Changes to our electric and natural gas base rates for all customers in Wisconsin will take effect January 1, 2026, and January 1, 2027. For specific information about the approved settlement, call the PSC at 800-225-7729 or visit psc.wi.gov and search for docket number 6680-UR-125.

1. Cost-effectively advancing responsible energy solutions: Investment in a combination of traditional, new and renewable energy sources positions us to meet customer demand – today and long into the future.
2. Building a strong, reliable, resilient, safe energy future: Positions us to meet growing energy demands, maintain best in class reliability and promote long-term energy security.
3. Powering customers forward and expanding energy options: A variety of new innovative customer-focused options are included, such as new Time of Use and demand-response programs, EV rebates, and offerings to help low- to moderate-income customers with their utility bill.
4. Prudent, long-term planning supports community and business growth: Ongoing energy planning supports regional growth strategies designed to attract high-tech industries and other energy-intensive businesses that drive job creation and economic growth. This in turn helps to spread fixed costs over a larger base, keeping everyone's bills as low as possible.

How can I reduce my electric and natural gas bills?

There are several ways you can reduce your energy use, which ultimately impacts your bill.

• Make energy efficiency improvements. Check out some do-it-yourself, cost-saving tips.
• Switch to a rate plan that better matches your energy use. Explore rate plan options and use our personalized rate calculator.
• Join our Smart Hours program and reduce your energy use while receiving rewards for participating.

What is Alliant Energy doing to manage energy costs?

To manage costs, we continue to operate our system as efficiently as possible. Through prudent, long-term planning, we are investing in a combination of resources including traditional, new and renewable energy sources.

We recently added more than 1 gigawatt of solar generation to the grid, making Alliant Energy the largest owners and operators of solar generation in Wisconsin. The completion of this project enables us to offset 2026 fuel costs by almost $94 million in 2026, which directly benefits customers.

Additionally, we rank among the top five utility owner-operators of regulated wind energy in the U.S., with 1,800 megawatts of wind capacity across our footprint. We have plans to add additional gas generation and battery storage projects to our portfolio.

Learn more about our current and planned generation projects