SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000107832-05-000069
Filing Date
2005-03-04
Accepted
2005-03-04 12:55:09
Documents
16
Period of Report
2004-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K 12-31-2004 form10k12312004.htm 10-K 4494709
2 FORM 10-K 12-31-2004 EXHIBIT 10.36 form10k12312004exh10pt36.htm EX-10 32487
3 FORM 10-K 12-31-2004 EXHIBIT 21 form10k12312004exh21.htm EX-21 6762
4 FORM 10-K 12-31-2004 EXHIBIT 23.1 form10k12312004exh23pt1.htm EX-23 2447
5 FORM 10-K 12-31-2004 EXHIBIT 23.2 form10k12312004exh23pt2.htm EX-23 2187
6 FORM 10-K 12-31-2004 EXHIBIT 23.3 form10k12312004exh23pt3.htm EX-23 2184
7 FORM 10-K 12-31-2004 EXHIBIT 31.1 form10k12312004exh31pt1.htm EX-31 13882
8 FORM 10-K 12-31-2004 EXHIBIT 31.2 form10k12312004exh31pt2.htm EX-31 13432
9 FORM 10-K 12-31-2004 EXHIBIT 31.3 form10k12312004exh31pt3.htm EX-31 12983
10 FORM 10-K 12-31-2004 EXHIBIT 31.4 form10k12312004exh31pt4.htm EX-31 12023
11 FORM 10-K 12-31-2004 EXHIBIT 31.5 form10k12312004exh31pt5.htm EX-31 12887
12 FORM 10-K 12-31-2004 EXHIBIT 31.6 form10k12312004exh31pt6.htm EX-31 11602
13 FORM 10-K 12-31-2004 EXHIBIT 32.1 form10k12312004exh32pt1.htm EX-32 2869
14 FORM 10-K 12-31-2004 EXHIBIT 32.2 form10k12312004exh32pt2.htm EX-32 2841
15 FORM 10-K 12-31-2004 EXHIBIT 32.3 form10k12312004exh32pt3.htm EX-32 2937
17 FORM 10-K 12-31-2004 form10k12312004.pdf 10-K 13154495
  Complete submission text file 0000107832-05-000069.txt   17786358
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-K | Act: 34 | File No.: 001-04117 | Film No.: 05660504
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 N BILTMORE LANE PO BOX 77007 MADISON WI 53707-1007
Business Address 4902 NORTH BILTMORE LANE PO BOX 77007 MADISON WI 53707-1007 608-4583314
WISCONSIN POWER & LIGHT CO (Filer) CIK: 0000107832 (see all company filings)

IRS No.: 390714890 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-00337 | Film No.: 05660503
SIC: 4931 Electric & Other Services Combined

Mailing Address 4902 NORTH BILTMORE LANE PO BOX 77007 MADISON WI 53707-1007
Business Address 4902 NORTH BILTMORE LANE PO BOX 77007 MADISON WI 53707-1007 608-458-3314
ALLIANT ENERGY CORP (Filer) CIK: 0000352541 (see all company filings)

IRS No.: 391380265 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-09894 | Film No.: 05660502
SIC: 4931 Electric & Other Services Combined