Wisconsin Rate Review: Test Years 2026 & 2027
LNT
Alliant Energy Corporation
Wisconsin Rate Review:
Test Years 2026 & 2027
March 2025
WPL Rate Review supports customer value
Powering today while building a stronger, more reliable and resilient energy future - for our customers, communities, and the region
Cost-effectively advancing responsible energy solutions
Solar and wind refurbishment projects provide zero-fuel cost energy and tax benefits to support cost-effective energy for customers
Investment in new energy storage resources and capacity and efficiency upgrades to existing natural gas-fired generation provide resources to meet growing customer demand
Building a strong, resilient, safe energy network
Electric and gas distribution investments enhance reliability and safety for customers
Powering customers forward and expanding energy options
New demand response offerings; updated time-of-use (TOU) periods; EV rebates; and offerings to help low- to moderate-income customers with utility bills
Prudent long-term energy planning to support community and business growth
Wisconsin Rate Review - Docket 6680-UR-125
Summary of Request for Forward Test Years
2026
2027
Increase in electric revenue requirements
$120M
$82M
Increase in gas revenue requirements
$9M
$5M
Proposed return on equity
9.9%
9.9%
Proposed regulatory equity level
55.5%
55.3%
Electric rate base
$6.3B
$6.7B
Gas rate base
$0.6B
$0.6B
Reduced fuel expenses attributable to greater energy from zero-fuel cost renewable energy resources, new energy storage, higher capacity and efficiency from upgrades to existing natural gas-fired generating units, and continued operations of Edgewater unit 5 and Columbia units 1 and 2
Rates to be effective January 1, 2026 (electric and gas) and
January 1, 2027 (electric and gas)
Disclaimer
Alliant Energy Corporation published this content on March 31, 2025, and is solely responsible for the information contained herein. Distributed via , unedited and unaltered, on March 31, 2025 at 20:53 UTC.