Alliant Energy completes 200MW Wisconsin PV plant

June 3, 2024
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

January 19, 2026
US solar firm SunPower has signed a letter of intent to acquire California-based residential and commercial installer Cobalt Power Systems in an all-equity transaction. 
January 19, 2026
Egyptian manufacturing firm Kemet has signed a deal with Chinese solar manufacturer GCL Technologies to build a 5GW solar cell and module manufacturing hub in the country.
January 19, 2026
Emirati renewables developer Masdar and French utility Engie have reached financial close on the 1.5GW Khazna solar project in Abu Dhabi.
January 19, 2026
Solar PV has met two-thirds (61%) of the US electricity demand growth in 2025, according to a report from think tank Ember.
January 19, 2026
Private investment in Poland’s renewable energy projects risks being blocked by proposed regulations governing grid connections.
January 19, 2026
Egg Power has secured £400 million (US$536 million) in debt financing from NatWest to develop large-scale renewable energy projects across Europe. 

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA