<SEC-DOCUMENT>0000352541-18-000073.txt : 20180726
<SEC-HEADER>0000352541-18-000073.hdr.sgml : 20180726
<ACCEPTANCE-DATETIME>20180726092803
ACCESSION NUMBER:		0000352541-18-000073
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180725
FILED AS OF DATE:		20180726
DATE AS OF CHANGE:		20180726

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Newport Roger K
		CENTRAL INDEX KEY:			0001298509

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09894
		FILM NUMBER:		18970473

	MAIL ADDRESS:	
		STREET 1:		703 CURTIS STREET
		CITY:			MIDDLETOWN
		STATE:			OH
		ZIP:			45043

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
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>wf-form3_153261166786683.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-07-25</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000352541</issuerCik>
        <issuerName>ALLIANT ENERGY CORP</issuerName>
        <issuerTradingSymbol>LNT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001298509</rptOwnerCik>
            <rptOwnerName>Newport Roger K</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ALLIANT ENERGY CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>PO BOX 14720</rptOwnerStreet2>
            <rptOwnerCity>MADISON</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53708-0720</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Wenyu T. Blanchard, Attorney-in-fact</signatureName>
        <signatureDate>2018-07-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poa_newportrogerk.htm
<DESCRIPTION>ROGER NEWPORT POA 7242018
<TEXT>
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<pre>
POWER OF ATTORNEY                         Exhibit 24



    KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned does
hereby constitute and appoint each of James H. Gallegos, Wenyu T. Blanchard, and Jake C. Blavat
 the true and lawful agents and attorneys-in-fact of the undersigned, with respect to all matters
 arising in connection with the undersigned's reporting obligations under Section 16(a) of the
 Securities Exchange Act of 1934 (the "Exchange Act") as amended, and related rules and
regulations, with full power and authority to execute and deliver for and on behalf of
the undersigned all Securities and Exchange Commission Forms 3, 4, 5 and other documents
in connection therewith regarding Alliant Energy Corporation, Interstate Power and Light
Company, and Wisconsin Power and Light Company (collectively, the "Company") securities,
as each of said agents and attorneys-in-fact may deem advisable.  The undersigned hereby
gives each of said agents and attorneys-in-fact full power and authority to act in the
premises, and hereby ratifies and confirms all that each of said agents and attorneys-in-fact
may do by virtue hereof.


    The undersigned acknowledges that each attorney-in-fact, in serving in such
capacity at the request of the undersigned, is not assuming any of the undersigned's
responsibilities to comply with the Exchange Act.  The undersigned agrees to defend and
hold harmless each attorney-in-fact from and against any and all loss, damage or liability
that such attorney-in-fact may sustain as a result of any action taken in good faith hereunder.

    This Power of Attorney shall remain in full force and effect until the undersigned
is no longer required to file documents with respect to the undersigned's holdings of
and transactions in securities issued by the Company, unless earlier revoked by the
undersigned in writing or by executing a new Power of Attorney.

    IN WITNESS WHEREOF, I have executed this Power of Attorney on this
24th day of July, 2018.



                            /s/ Roger K. Newport
                            Roger K. Newport



</pre>
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