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. 0000107832-08-000019
Filing Date
2008-02-28
Accepted
2008-02-28 17:10:16
Documents
22
Period of Report
2007-12-31

Document Format Files

Seq Description Document Type Size
1 FORM 10-K 12/31/07 form10k123107.htm 10-K 4934949
2 FORM 10-K 12/31/07 EXHIBIT 10.12 form10k123107exh10pt12.htm EX-10 93813
3 FORM 10-K 12/31/07 EXHIBIT 10.13 form10k123107exh10pt13.htm EX-10 94047
4 FORM 10-K 12/31/07 EXHIBIT 10.15 form10k123107exh10pt15.htm EX-10 7472
5 FORM 10-K 12/31/07 EXHIBIT 12.1 form10k123107exh12pt1.htm EX-12 19458
6 FORM 10-K 12/31/07 EXHIBIT 12.2 form10k123107exh12pt2.htm EX-12 17340
7 FORM 10-K 12/31/07 EXHIBIT 12.3 form10k123107exh12pt3.htm EX-12 18516
8 FORM 10-K 12/31/07 EXHIBIT 21.1 form10k123107exh21pt1.htm EX-21 3257
9 FORM 10-K 12/31/07 EXHIBIT 21.2 form10k123107exh21pt2.htm EX-21 2626
10 FORM 10-K 12/31/07 EXHIBIT 23.1 form10k123107exh23pt1.htm EX-23 2502
11 FORM 10-K 12/31/07 EXHIBIT 23.2 form10k123107exh23pt2.htm EX-23 2304
12 FORM 10-K 12/31/07 EXHIBIT 31.1 form10k123107exh31pt1.htm EX-31 14117
13 FORM 10-K 12/31/07 EXHIBIT 31.2 form10k123107exh31pt2.htm EX-31 14139
14 FORM 10-K 12/31/07 EXHIBIT 31.3 form10k123107exh31pt3.htm EX-31 14122
15 FORM 10-K 12/31/07 EXHIBIT 31.4 form10k123107exh31pt4.htm EX-31 13462
16 FORM 10-K 12/31/07 EXHIBIT 31.5 form10k123107exh31pt5.htm EX-31 14120
17 FORM 10-K 12/31/07 EXHIBIT 31.6 form10k123107exh31pt6.htm EX-31 13460
18 FORM 10-K 12/31/07 EXHIBIT 32.1 form10k123107exh32pt1.htm EX-32 2963
19 FORM 10-K 12/31/07 EXHIBIT 32.2 form10k123107exh32pt2.htm EX-32 2925
20 FORM 10-K 12/31/07 EXHIBIT 32.3 form10k123107exh32pt3.htm EX-32 2924
22 GRAPHIC img1.jpg GRAPHIC 2654
23 FORM 10-K 12/31/07 PDF form10k123107pdf.pdf 10-K 1045263
  Complete submission text file 0000107832-08-000019.txt   6735944
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.: 08651633
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.: 08651632
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.: 08651631
SIC: 4931 Electric & Other Services Combined