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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001193125-12-211596
Filing Date
2012-05-04
Accepted
2012-05-04 14:52:20
Documents
21
Period of Report
2012-03-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-Q d328162d10q.htm 10-Q 1739105
2 RATIO OF EARNINGS TO FIXED CHARGES FOR ALLIANT ENERGY d328162dex121.htm EX-12.1 55674
3 RATIO OF EARNINGS TO FIXED CHARGES AND RATIO OF EARNINGS d328162dex122.htm EX-12.2 53390
4 RATIO OF EARNINGS TO FIXED CHARGES AND RATIO OF EARNINGS d328162dex123.htm EX-12.3 55671
5 CERTIFICATION OF THE CHAIRMAN, PRESIDENT AND CEO FOR ALLIANT ENERGY d328162dex311.htm EX-31.1 9493
6 CERTIFICATION OF THE VICE PRESIDENT AND CFO FOR ALLIANT ENERGY d328162dex312.htm EX-31.2 9653
7 CERTIFICATION OF THE CHAIRMAN AND CEO FOR IPL d328162dex313.htm EX-31.3 9611
8 CERTIFICATION OF THE VICE PRESIDENT AND CFO FOR IPL d328162dex314.htm EX-31.4 9636
9 CERTIFICATION OF THE CHAIRMAN AND CEO FOR WPL d328162dex315.htm EX-31.5 9703
10 CERTIFICATION OF THE VICE PRESIDENT AND CFO FOR WPL d328162dex316.htm EX-31.6 9697
11 WRITTEN STATEMENT OF THE CEO & CFO PURSUANT TO 18 U.S.C.1350 FOR ALLIANT ENERGY d328162dex321.htm EX-32.1 2605
12 WRITTEN STATEMENT OF THE CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR IPL d328162dex322.htm EX-32.2 2562
13 WRITTEN STATEMENT OF THE CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR WPL d328162dex323.htm EX-32.3 2561
20 PDF OF 10Q d328162d10q1.pdf 10-Q 366448
21 GRAPHIC g328162g94l60.jpg GRAPHIC 55206
  Complete submission text file 0001193125-12-211596.txt   20553153

Data Files

Seq Description Document Type Size
14 XBRL INSTANCE DOCUMENT lnt-20120331.xml EX-101.INS 4962757
15 XBRL TAXONOMY EXTENSION SCHEMA lnt-20120331.xsd EX-101.SCH 95710
16 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE lnt-20120331_cal.xml EX-101.CAL 85753
17 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE lnt-20120331_def.xml EX-101.DEF 465934
18 XBRL TAXONOMY EXTENSION LABEL LINKBASE lnt-20120331_lab.xml EX-101.LAB 613987
19 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE lnt-20120331_pre.xml EX-101.PRE 635130
Mailing Address 200 FIRST ST SE ALLIANT ENERGY TOWER CEDAR RAPIDS IA 52401
Business Address 200 FIRST ST SE ALLIANT ENERGY TOWER CEDAR RAPIDS IA 52401 3193984411
INTERSTATE POWER & LIGHT CO (Filer) CIK: 0000052485 (see all company filings)

IRS No.: 420331370 | State of Incorp.: IA | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-04117 | Film No.: 12813729
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 N BILTMORE LANE SUITE 1000 MADISON WI 53718-2148
Business Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148 608-458-3311
WISCONSIN POWER & LIGHT CO (Filer) CIK: 0000107832 (see all company filings)

IRS No.: 390714890 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 000-00337 | Film No.: 12813728
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148
Business Address 4902 NORTH BILTMORE LANE SUITE 1000 MADISON WI 53718-2148 608-458-3311
ALLIANT ENERGY CORP (Filer) CIK: 0000352541 (see all company filings)

IRS No.: 391380265 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-09894 | Film No.: 12813727
SIC: 4931 Electric & Other Services Combined