INTERSTATE POWER & LIGHT CO 10-K
Accession 0000352541-13-000007
Filed
Feb 25, 7:00 PM ET
Accepted
Feb 26, 5:15 PM ET
Size
127.9 MB
Accession
0000352541-13-000007
Documents
- 10-Klnt1231201210-k.htmPrimary
FORM 10-K
- EX-10.15lnt1231201210-kex1015.htm
SUMMARY OF COMPENSATION AND BENEFITS FOR NON-EMPLOYEE DIRECTORS
- EX-12.1lnt1231201210-kex121.htm
RATIO OF EARNINGS TO FIXED CHARGES FOR ALLIANT ENERGY
- EX-12.2lnt1231201210-kex122.htm
RATIO OF EARNINGS TO FIXED CHARGES FOR IPL
- EX-12.3lnt1231201210-kex123.htm
RATIO OF EARNINGS TO FIXED CHARGES FOR WPL
- EX-21.1lnt1231201210-kex211.htm
SUBSIDIARIES OF ALLIANT ENERGY
- EX-21.2lnt1231201210-kex212.htm
SUBSIDIARIES OF WPL
- EX-23.1lnt1231201210-kex231.htm
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR ALLIANT ENERGY
- EX-23.2lnt1231201210-kex232.htm
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR IPL
- EX-23.3lnt1231201210-kex233.htm
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR WPL
- EX-31.1lnt1231201210-kex311.htm
CERTIFICATION OF THE CHAIRMAN, PRESIDENT AND CEO FOR ALLIANT ENERGY
- EX-31.2lnt1231201210-kex312.htm
CERTIFICATION OF THE SENIOR VICE PRESIDENT AND CFO FOR ALLIANT ENERGY
- EX-31.3lnt1231201210-kex313.htm
CERTIFICATION OF THE CHAIRMAN AND CEO FOR IPL
- EX-31.4lnt1231201210-kex314.htm
CERTIFICATION OF THE SENIOR VICE PRESIDENT AND CFO FOR IPL
- EX-31.5lnt1231201210-kex315.htm
CERTIFICATION OF THE CHAIRMAN AND CEO FOR WPL
- EX-31.6lnt1231201210-kex316.htm
CERTIFICATION OF THE SENIOR VICE PRESIDENT AND CFO FOR WPL
- EX-32.1lnt1231201210-kex321.htm
WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR ALLIANT ENERGY
- EX-32.2lnt1231201210-kex322.htm
WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR IPL
- EX-32.3lnt1231201210-kex323.htm
WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR WPL
- EX-101.INSlnt-20121231.xml
XBRL INSTANCE DOCUMENT
- EX-101.SCHlnt-20121231.xsd
XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
- EX-101.CALlnt-20121231_cal.xml
XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
- EX-101.DEFlnt-20121231_def.xml
XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
- EX-101.LABlnt-20121231_lab.xml
XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
- EX-101.PRElnt-20121231_pre.xml
XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
- XMLR39.htm
IDEA: XBRL DOCUMENT
- XMLR142.htm
IDEA: XBRL DOCUMENT
- XMLR112.htm
IDEA: XBRL DOCUMENT
- XMLR54.htm
IDEA: XBRL DOCUMENT
- XMLR48.htm
IDEA: XBRL DOCUMENT
- XMLR121.htm
IDEA: XBRL DOCUMENT
- XMLR70.htm
IDEA: XBRL DOCUMENT
- XMLR124.htm
IDEA: XBRL DOCUMENT
- XMLR55.htm
IDEA: XBRL DOCUMENT
- XMLR78.htm
IDEA: XBRL DOCUMENT
- XMLR104.htm
IDEA: XBRL DOCUMENT
- XMLR46.htm
IDEA: XBRL DOCUMENT
- XMLR33.htm
IDEA: XBRL DOCUMENT
- XMLR79.htm
IDEA: XBRL DOCUMENT
- XMLR118.htm
IDEA: XBRL DOCUMENT
- XMLR127.htm
IDEA: XBRL DOCUMENT
- XMLreport.css
IDEA: XBRL DOCUMENT
- XMLR133.htm
IDEA: XBRL DOCUMENT
- XMLR73.htm
IDEA: XBRL DOCUMENT
- XMLR89.htm
IDEA: XBRL DOCUMENT
- XMLR57.htm
IDEA: XBRL DOCUMENT
- XMLR109.htm
IDEA: XBRL DOCUMENT
- XMLR134.htm
IDEA: XBRL DOCUMENT
- XMLR76.htm
IDEA: XBRL DOCUMENT
- XMLR148.htm
IDEA: XBRL DOCUMENT
- XMLR86.htm
IDEA: XBRL DOCUMENT
- XMLR145.htm
IDEA: XBRL DOCUMENT
- XMLR149.htm
IDEA: XBRL DOCUMENT
- XMLR81.htm
IDEA: XBRL DOCUMENT
- XMLR87.htm
IDEA: XBRL DOCUMENT
- XMLR77.htm
IDEA: XBRL DOCUMENT
- XMLR71.htm
IDEA: XBRL DOCUMENT
- XMLR25.htm
IDEA: XBRL DOCUMENT
- XMLR141.htm
IDEA: XBRL DOCUMENT
- XMLR50.htm
IDEA: XBRL DOCUMENT
- XMLR42.htm
IDEA: XBRL DOCUMENT
- XMLR75.htm
IDEA: XBRL DOCUMENT
- XMLR97.htm
IDEA: XBRL DOCUMENT
- XMLR37.htm
IDEA: XBRL DOCUMENT
- XMLR52.htm
IDEA: XBRL DOCUMENT
- XMLR67.htm
IDEA: XBRL DOCUMENT
- XMLR111.htm
IDEA: XBRL DOCUMENT
- XMLR61.htm
IDEA: XBRL DOCUMENT
- XMLR47.htm
IDEA: XBRL DOCUMENT
- XMLR9.htm
IDEA: XBRL DOCUMENT
- XMLR139.htm
IDEA: XBRL DOCUMENT
- XMLR116.htm
IDEA: XBRL DOCUMENT
- XMLR62.htm
IDEA: XBRL DOCUMENT
- XMLR128.htm
IDEA: XBRL DOCUMENT
- EXCELFinancial_Report.xls
IDEA: XBRL DOCUMENT
- XMLR136.htm
IDEA: XBRL DOCUMENT
- XMLR43.htm
IDEA: XBRL DOCUMENT
- XMLR29.htm
IDEA: XBRL DOCUMENT
- XMLR28.htm
IDEA: XBRL DOCUMENT
- XMLR100.htm
IDEA: XBRL DOCUMENT
- XMLR56.htm
IDEA: XBRL DOCUMENT
- XMLR44.htm
IDEA: XBRL DOCUMENT
- XMLR30.htm
IDEA: XBRL DOCUMENT
- XMLR31.htm
IDEA: XBRL DOCUMENT
- XMLR8.htm
IDEA: XBRL DOCUMENT
- XMLR32.htm
IDEA: XBRL DOCUMENT
- XMLR83.htm
IDEA: XBRL DOCUMENT
- XMLR114.htm
IDEA: XBRL DOCUMENT
- XMLR40.htm
IDEA: XBRL DOCUMENT
- XMLR53.htm
IDEA: XBRL DOCUMENT
- XMLR72.htm
IDEA: XBRL DOCUMENT
- XMLR2.htm
IDEA: XBRL DOCUMENT
- XMLR45.htm
IDEA: XBRL DOCUMENT
- XMLR96.htm
IDEA: XBRL DOCUMENT
- XMLR135.htm
IDEA: XBRL DOCUMENT
- XMLR113.htm
IDEA: XBRL DOCUMENT
- XMLR6.htm
IDEA: XBRL DOCUMENT
- XMLR94.htm
IDEA: XBRL DOCUMENT
- XMLR138.htm
IDEA: XBRL DOCUMENT
- XMLR140.htm
IDEA: XBRL DOCUMENT
- XMLR59.htm
IDEA: XBRL DOCUMENT
- XMLR99.htm
IDEA: XBRL DOCUMENT
- XMLR35.htm
IDEA: XBRL DOCUMENT
- XMLR147.htm
IDEA: XBRL DOCUMENT
- XMLR131.htm
IDEA: XBRL DOCUMENT
- XMLR65.htm
IDEA: XBRL DOCUMENT
- XMLR22.htm
IDEA: XBRL DOCUMENT
- XMLR36.htm
IDEA: XBRL DOCUMENT
- XMLR98.htm
IDEA: XBRL DOCUMENT
- XMLR123.htm
IDEA: XBRL DOCUMENT
- XMLR24.htm
IDEA: XBRL DOCUMENT
- XMLR68.htm
IDEA: XBRL DOCUMENT
- XMLR108.htm
IDEA: XBRL DOCUMENT
- XMLShow.js
IDEA: XBRL DOCUMENT
- XMLR7.htm
IDEA: XBRL DOCUMENT
- XMLR3.htm
IDEA: XBRL DOCUMENT
- XMLR17.htm
IDEA: XBRL DOCUMENT
- XMLR103.htm
IDEA: XBRL DOCUMENT
- XMLR93.htm
IDEA: XBRL DOCUMENT
- XMLR91.htm
IDEA: XBRL DOCUMENT
- XMLR122.htm
IDEA: XBRL DOCUMENT
- ZIP0000352541-13-000007-xbrl.zip
IDEA: XBRL DOCUMENT
- XMLR132.htm
IDEA: XBRL DOCUMENT
- XMLR146.htm
IDEA: XBRL DOCUMENT
- XMLR119.htm
IDEA: XBRL DOCUMENT
- XMLR1.htm
IDEA: XBRL DOCUMENT
- XMLR125.htm
IDEA: XBRL DOCUMENT
- XMLR18.htm
IDEA: XBRL DOCUMENT
- XMLR80.htm
IDEA: XBRL DOCUMENT
- XMLR90.htm
IDEA: XBRL DOCUMENT
- XMLR4.htm
IDEA: XBRL DOCUMENT
- XMLR12.htm
IDEA: XBRL DOCUMENT
- XMLR11.htm
IDEA: XBRL DOCUMENT
- XMLR144.htm
IDEA: XBRL DOCUMENT
- XMLR23.htm
IDEA: XBRL DOCUMENT
- XMLR19.htm
IDEA: XBRL DOCUMENT
- XMLR84.htm
IDEA: XBRL DOCUMENT
- XMLR15.htm
IDEA: XBRL DOCUMENT
- XMLR150.htm
IDEA: XBRL DOCUMENT
- XMLR60.htm
IDEA: XBRL DOCUMENT
- XMLR110.htm
IDEA: XBRL DOCUMENT
- XMLR13.htm
IDEA: XBRL DOCUMENT
- XMLR14.htm
IDEA: XBRL DOCUMENT
- XMLR137.htm
IDEA: XBRL DOCUMENT
- XMLR16.htm
IDEA: XBRL DOCUMENT
- XMLR64.htm
IDEA: XBRL DOCUMENT
- XMLR120.htm
IDEA: XBRL DOCUMENT
- XMLR85.htm
IDEA: XBRL DOCUMENT
- XMLR66.htm
IDEA: XBRL DOCUMENT
- XMLR102.htm
IDEA: XBRL DOCUMENT
- XMLR63.htm
IDEA: XBRL DOCUMENT
- XMLR92.htm
IDEA: XBRL DOCUMENT
- XMLR129.htm
IDEA: XBRL DOCUMENT
- XMLR34.htm
IDEA: XBRL DOCUMENT
- XMLR143.htm
IDEA: XBRL DOCUMENT
- XMLR51.htm
IDEA: XBRL DOCUMENT
- XMLR21.htm
IDEA: XBRL DOCUMENT
- XMLR115.htm
IDEA: XBRL DOCUMENT
- XMLR26.htm
IDEA: XBRL DOCUMENT
- XMLR95.htm
IDEA: XBRL DOCUMENT
- XMLR49.htm
IDEA: XBRL DOCUMENT
- XMLR105.htm
IDEA: XBRL DOCUMENT
- XMLR41.htm
IDEA: XBRL DOCUMENT
- XMLR107.htm
IDEA: XBRL DOCUMENT
- XMLR5.htm
IDEA: XBRL DOCUMENT
- XMLR88.htm
IDEA: XBRL DOCUMENT
- XMLR10.htm
IDEA: XBRL DOCUMENT
- XMLR58.htm
IDEA: XBRL DOCUMENT
- XMLR82.htm
IDEA: XBRL DOCUMENT
- XMLR106.htm
IDEA: XBRL DOCUMENT
- XMLR69.htm
IDEA: XBRL DOCUMENT
- XMLR27.htm
IDEA: XBRL DOCUMENT
- XMLFilingSummary.xml
IDEA: XBRL DOCUMENT
- XMLR117.htm
IDEA: XBRL DOCUMENT
- XMLR130.htm
IDEA: XBRL DOCUMENT
- XMLR126.htm
IDEA: XBRL DOCUMENT
- XMLR74.htm
IDEA: XBRL DOCUMENT
- XMLR38.htm
IDEA: XBRL DOCUMENT
- XMLR20.htm
IDEA: XBRL DOCUMENT
- XMLR101.htm
IDEA: XBRL DOCUMENT
Issuer
INTERSTATE POWER & LIGHT CO
CIK 0000052485
Related Parties
1- filerCIK 0000052485
Filing Metadata
- Form type
- 10-K
- Filed
- Feb 25, 7:00 PM ET
- Accepted
- Feb 26, 5:15 PM ET
- Size
- 127.9 MB