# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000352541-18-000051
Filing Date
2018-05-03
Accepted
2018-05-03 17:00:08
Documents
101
Period of Report
2018-03-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | lnt331201810-q.htm | 10-Q | 2040211
2 | RATIO OF EARNINGS TO FIXED CHARGES FOR ALLIANT ENERGY | lnt331201810-qex121.htm | EX-12.1 | 81285
3 | RATIO OF EARNINGS TO FIXED CHARGES FOR IPL | lnt331201810-qex122.htm | EX-12.2 | 84201
4 | RATIO OF EARNINGS TO FIXED CHARGES FOR WPL | lnt331201810-qex123.htm | EX-12.3 | 63059
5 | CERTIFICATION OF THE CHAIRMAN AND CEO FOR ALLIANT ENERGY | lnt331201810-qex311.htm | EX-31.1 | 12251
6 | CERTIFICATION OF THE SENIOR VICE PRESIDENT, CFO AND TREASURER FOR ALLIANT ENERGY | lnt331201810-qex312.htm | EX-31.2 | 12311
7 | CERTIFICATION OF THE CHAIRMAN AND CEO FOR IPL | lnt331201810-qex313.htm | EX-31.3 | 12256
8 | CERTIFICATION OF THE SENIOR VICE PRESIDENT, CFO AND TREASURER FOR IPL | lnt331201810-qex314.htm | EX-31.4 | 12316
9 | CERTIFICATION OF THE CHAIRMAN AND CEO FOR WPL | lnt331201810-qex315.htm | EX-31.5 | 12349
10 | CERTIFICATION OF THE SENIOR VICE PRESIDENT, CFO AND TREASURER FOR WPL | lnt331201810-qex316.htm | EX-31.6 | 12315
11 | WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR ALLIANT ENERGY | lnt331201810-qex321.htm | EX-32.1 | 5302
12 | WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR IPL | lnt331201810-qex322.htm | EX-32.2 | 5299
13 | WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR WPL | lnt331201810-qex323.htm | EX-32.3 | 5288
20 | GRAPHIC | alliantenergylogo0331201810q.jpg | GRAPHIC | 334542
21 | GRAPHIC | chart-0bc25d3d26745f7d9a5a01.jpg | GRAPHIC | 11297
22 | GRAPHIC | chart-3273d951649154e59f1a01.jpg | GRAPHIC | 8988
23 | GRAPHIC | chart-ebced145bcd256e08d5a01.jpg | GRAPHIC | 9241
| Complete submission text file | 0000352541-18-000051.txt |  | 19698269

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
14 | XBRL INSTANCE DOCUMENT | lnt-20180331.xml | EX-101.INS | 6977354
15 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | lnt-20180331.xsd | EX-101.SCH | 71219
16 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | lnt-20180331_cal.xml | EX-101.CAL | 92251
17 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | lnt-20180331_def.xml | EX-101.DEF | 604512
18 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | lnt-20180331_lab.xml | EX-101.LAB | 741076
19 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | lnt-20180331_pre.xml | EX-101.PRE | 642644

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)

EIN.: 420331370 | State of Incorp.: IA | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-04117 | Film No.: 18804728
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)

EIN.: 390714890 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 000-00337 | Film No.: 18804727
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)

EIN.: 391380265 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-09894 | Film No.: 18804726
SIC: 4931 Electric & Other Services Combined