EX-23 2 lnt1231202411-kexh23.htm EX-23

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Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-117654, 333-211148, and 333-230331 of Alliant Energy Corporation on Form S-8 of our report dated June 24, 2025, relating to the financial statements and supplemental schedule of the Alliant Energy Corporation 401(k) Savings Plan appearing in this Annual Report on Form 11-K of the Alliant Energy Corporation 401(k) Savings Plan for the year ended December 31, 2024.

/s/ DELOITTE & TOUCHE LLP

Milwaukee, WI

June 24, 2025

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