<SEC-DOCUMENT>0001193125-17-306385-index.html : 20171010 <SEC-HEADER>0001193125-17-306385.hdr.sgml : 20171010 <ACCEPTANCE-DATETIME>20171010060810 ACCESSION NUMBER: 0001193125-17-306385 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 7 CONFORMED PERIOD OF REPORT: 20171002 ITEM INFORMATION: Other Events ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20171010 DATE AS OF CHANGE: 20171010 FILER: COMPANY DATA: COMPANY CONFORMED NAME: WISCONSIN POWER & LIGHT CO CENTRAL INDEX KEY: 0000107832 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 390714890 STATE OF INCORPORATION: WI FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 000-00337 FILM NUMBER: 171128472 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 N BILTMORE LANE STREET 2: SUITE 1000 CITY: MADISON STATE: WI ZIP: 53718-2148 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: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-09894 FILM NUMBER: 171128473 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>8-K <SEQUENCE>1 <FILENAME>d464744d8k.htm <DESCRIPTION>FORM 8-K <TEXT> Document 1 - file: d464744d8k.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-1.1 <SEQUENCE>2 <FILENAME>d464744dex11.htm <DESCRIPTION>EX-1.1 <TEXT> Document 2 - file: d464744dex11.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-4.1 <SEQUENCE>3 <FILENAME>d464744dex41.htm <DESCRIPTION>EX-4.1 <TEXT> Document 3 - file: d464744dex41.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.1 <SEQUENCE>4 <FILENAME>d464744dex51.htm <DESCRIPTION>EX-5.1 <TEXT> Document 4 - file: d464744dex51.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>5 <FILENAME>d464744dex991.htm <DESCRIPTION>EX-99.1 <TEXT> Document 5 - file: d464744dex991.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g464744g1007082709256.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g464744g1007082709256.jpg
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