Alliant Energy completes 200MW Wisconsin PV plant

Facebook
Twitter
LinkedIn
Reddit
Email
The Grant County project, located in Potosi, Wisconsin, marks the culmination of Alliant Energy’s addition of 1,089MW of solar PV in Wisconsin. Image: Alliant Energy.

US utility Alliant Energy has completed construction of a 200MW solar PV plant in the state of Wisconsin.

The Grant County project, located in Potosi, Wisconsin, marks the culmination of Alliant’s addition of 1,089MW of solar PV in Wisconsin across 12 projects. In 2019, the publicly-owned utility announced a commitment to bring 1GW of PV online in the state through its ‘Powering What’s Next’ initiative.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

The site has deployed more than 430,000 solar modules across 1,400 acres, Alliant said, and features biodiversity measures to create a hospitable habitat for pollinators. Construction was contracted to a subsidiary of NextEra Energy Resources, the utility added.

Lisa Barton, president and CEO of Alliant, said: “The successful completion of the Grant County Solar Project is a milestone achievement on our journey toward a cleaner, more reliable and cost-effective energy future. Investing in a diverse energy mix is just one way we add value for customers while sustaining the economic and environmental health of the communities we serve.”

Beyond the solar element of the Grant County site, Alliant said that it plans to add a 100MW battery energy storage system (BESS) project to the same site. The Public Service Commission Wisconsin (PSCW) granted approvals for this project, and a second BESS expansion at the Wood County Solar Project, in August 2023.

In total, the company plans to develop 275MW of BESS projects to complement its growing solar portfolio. In March, US engineering, procurement and construction (EPC) firm Burns & McDonnell completed EPC work on 764MW of solar PV projects in Wisconsin for Alliant.

Read Next

October 30, 2026
US solar manufacturer First Solar reported net sales of US$1.23 billion for the third quarter of 2026, down 23% year-on-year.
October 30, 2026
US CBP has released solar cell shipments from Japanese manufacturer TOYO’s Ethiopian facility after reviewing its supply chain documentation.
October 30, 2026
Michigan utility DTE Energy has announced the operational status of its 132MW Fish Creek Solar Park near Sheridan, Michigan.
October 30, 2026
SEG Solar has signed a land agreement for a planned US$950 million heterojunction (HJT) solar cell manufacturing facility at its Tomball Industrial Campus near Houston, Texas.
October 29, 2026
Nextpower has reported net income of US$165 million and revenue of over US$1.1 billion in its results for the quarter ending 2 October.
October 29, 2026
First Solar has inaugurated the first 1.7GW phase of its US$330 million manufacturing facility in Gaffney, Cherokee County, South Carolina.

Upcoming Events

Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye