SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 424B5 - Prospectus [Rule 424(b)(5)]:
SEC Accession No. 0001193125-10-136675
Filing Date
2010-06-10
Accepted
2010-06-10 09:03:05
Documents
1

Document Format Files

Seq Description Document Type Size
1 PRELIMINARY PROSPECTUS SUPPLEMENT d424b5.htm 424B5 358181
  Complete submission text file 0001193125-10-136675.txt   359603
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: 424B5 | Act: 33 | File No.: 333-159477 | Film No.: 10889080
SIC: 4931 Electric & Other Services Combined