<SEC-DOCUMENT>0001127602-15-014959-index.html : 20150422
<SEC-HEADER>0001127602-15-014959.hdr.sgml : 20150422
<ACCEPTANCE-DATETIME>20150422135001
ACCESSION NUMBER:		0001127602-15-014959
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20150410
FILED AS OF DATE:		20150422
DATE AS OF CHANGE:		20150422

ISSUER:		

	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

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Oestreich Dean C
		CENTRAL INDEX KEY:			0001329066

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09894
		FILM NUMBER:		15785162

	MAIL ADDRESS:	
		STREET 1:		PO BOX 2568
		CITY:			MADISON
		STATE:			WI
		ZIP:			53701
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>form4a.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: form4a.html

Document 1 - RAW XML: form4a.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>doc1.txt
<DESCRIPTION>POWER OF ATTORNEY (PUBLIC): D OESTREICH POA
<TEXT>
Document 2 - file: doc1.txt

</DOCUMENT>
</SEC-DOCUMENT>