    <SEC-DOCUMENT>0000352541-23-000047-index.html : 20230404
    <SEC-HEADER>0000352541-23-000047.hdr.sgml : 20230404
    <ACCEPTANCE-DATETIME>20230403183729
    ACCESSION NUMBER:		0000352541-23-000047
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20221231
    FILED AS OF DATE:		20230404
    DATE AS OF CHANGE:		20230403
    EFFECTIVENESS DATE:		20230404

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ALLIANT ENERGY CORP
    		CENTRAL INDEX KEY:			0000352541
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
    		IRS NUMBER:				391380265
    		STATE OF INCORPORATION:			WI
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-09894
    		FILM NUMBER:		23794384

    	BUSINESS ADDRESS:
    		STREET 1:		4902 NORTH BILTMORE LANE
    		STREET 2:		SUITE 1000
    		CITY:			MADISON
    		STATE:			WI
    		ZIP:			53718-2148
    		BUSINESS PHONE:		608-458-3311

    	MAIL ADDRESS:
    		STREET 1:		4902 NORTH BILTMORE LANE
    		STREET 2:		SUITE 1000
    		CITY:			MADISON
    		STATE:			WI
    		ZIP:			53718-2148

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	INTERSTATE ENERGY CORP
    		DATE OF NAME CHANGE:	19980427

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	WPL HOLDINGS INC
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>lnt2022ars.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: lnt2022ars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>