# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000352541-20-000021
Filing Date
2020-02-21
Accepted
2020-02-21 14:15:21
Documents
167
Period of Report
2019-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | lnt1231201910-k.htm iXBRL | 10-K | 8886756
2 | DESCRIPTION OF COMMON STOCK OF ALLIANT ENERGY | lnt1231201910-kex426.htm | EX-4.26 | 15340
3 | DESCRIPTION OF 5.100% SERIES D CUMULATIVE PERPETUAL PREFERRED STOCK OF IPL | lnt1231201910-kex427.htm | EX-4.27 | 29352
4 | SUMMARY OF COMPENSATION AND BENEFITS FOR NON-EMPLOYEE DIRECTORS | lnt1231201910-kex1016.htm | EX-10.16 | 8664
5 | SUBSIDIARIES OF ALLIANT ENERGY | lnt1231201910-kex211.htm | EX-21.1 | 5054
6 | CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR ALLIANT ENERGY | lnt1231201910-kex231.htm | EX-23.1 | 3583
7 | CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR IPL | lnt1231201910-kex232.htm | EX-23.2 | 3348
8 | CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR WPL | lnt1231201910-kex233.htm | EX-23.3 | 3346
9 | CERTIFICATION OF THE CEO FOR ALLIANT ENERGY | lnt1231201910-kex311.htm | EX-31.1 | 12121
10 | CERTIFICATION OF THE CFO FOR ALLIANT ENERGY | lnt1231201910-kex312.htm | EX-31.2 | 12168
11 | CERTIFICATION OF THE CEO FOR IPL | lnt1231201910-kex313.htm | EX-31.3 | 12214
12 | CERTIFICATION OF THE CFO FOR IPL | lnt1231201910-kex314.htm | EX-31.4 | 12173
13 | CERTIFICATION OF THE CEO FOR WPL | lnt1231201910-kex315.htm | EX-31.5 | 12114
14 | CERTIFICATION OF THE CFO FOR WPL | lnt1231201910-kex316.htm | EX-31.6 | 12171
15 | WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR ALLIANT ENERGY | lnt1231201910-kex321.htm | EX-32.1 | 5479
16 | WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR IPL | lnt1231201910-kex322.htm | EX-32.2 | 5500
17 | WRITTEN STATEMENT OF CEO AND CFO PURSUANT TO 18 U.S.C.1350 FOR WPL | lnt1231201910-kex323.htm | EX-32.3 | 5499
23 | GRAPHIC | alliantenergylogo.jpg | GRAPHIC | 334542
24 | GRAPHIC | chart-5dda294ea14958f8bf0.jpg | GRAPHIC | 8328
25 | GRAPHIC | chart-088d46b1342b525aace.jpg | GRAPHIC | 9478
26 | GRAPHIC | chart-562fefa9a1c854ba97c.jpg | GRAPHIC | 8328
27 | GRAPHIC | chart-2877faea013451a9a12.jpg | GRAPHIC | 10104
28 | GRAPHIC | chart-79379db8506255b7a49.jpg | GRAPHIC | 10170
29 | GRAPHIC | chart-aa19012e16de548394a.jpg | GRAPHIC | 12129
30 | GRAPHIC | chart-fe6482e3240f5fac936.jpg | GRAPHIC | 9473
| Complete submission text file | 0000352541-20-000021.txt |  | 62259979

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
18 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | lnt-20191231.xsd | EX-101.SCH | 121681
19 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | lnt-20191231_cal.xml | EX-101.CAL | 154474
20 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | lnt-20191231_def.xml | EX-101.DEF | 1157078
21 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | lnt-20191231_lab.xml | EX-101.LAB | 1394558
22 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | lnt-20191231_pre.xml | EX-101.PRE | 1239745
67 | EXTRACTED XBRL INSTANCE DOCUMENT | lnt1231201910-k_htm.xml | XML | 23691163

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-K | Act: 34 | File No.: 001-04117 | Film No.: 20638935
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-K | Act: 34 | File No.: 000-00337 | Film No.: 20638936
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-K | Act: 34 | File No.: 001-09894 | Film No.: 20638937
SIC: 4931 Electric & Other Services Combined