Alliant Energy Q1 2026 results and 370 MW deal

Alliant Energy Corporation has announced its first quarter 2026 financial results and a new electric service agreement.

• Main announcement: Alliant Energy reported GAAP EPS $0.87 for Q1 2026 (vs. $0.83 in Q1 2025), ongoing EPS $0.82 (vs. $0.83), reaffirmed 2026 ongoing earnings guidance $3.36 - $3.46 per share, and signed an approximately 370 MW electric service agreement in Iowa, raising total contracted data center demand to ~3.4 GW with five executed agreements.
• Background and details: Alliant Energy serves more than 1 million electric and 435,000 natural gas customers across Iowa and Wisconsin; its wholly owned subsidiaries are Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL). Media contact details provided: Iowa phone (319) 786-4040, Wisconsin phone (608) 458-4040, and alliantenergynews@alliantenergy.com.