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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001109357-21-000022
Filing Date
2021-02-24
Accepted
2021-02-24 15:10:10
Documents
314
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 10-K exc-20201231.htm   iXBRL 10-K 24458360
2 EXHIBIT 3.6 exc-20201231x10kxexh36.htm EX-3.6 56230
3 EXHIBIT 10.74 exc-20201231x10kxexh1074.htm EX-10.74 9177
4 SUBSIDIARIES - EXELON CORPORATION exc-20201231x10kxexh211.htm EX-21.1 183385
5 SUBSIDIARIES - EXELON GENERATION COMPANY, LLC exc-20201231x10kxexh212.htm EX-21.2 144992
6 SUBSIDIARIES - COMMONWEALTH EDISON COMPANY exc-20201231x10kxexh213.htm EX-21.3 5200
7 SUBSIDIARIES - PECO ENERGY COMPANY exc-20201231x10kxexh214.htm EX-21.4 6707
8 SUBSIDIARIES - BALTIMORE GAS AND ELECTRIC COMPANY exc-20201231x10kxexh215.htm EX-21.5 2926
9 SUBSIDIARIES - PEPCO HOLDINGS LLC exc-20201231x10kxexh216.htm EX-21.6 5687
10 SUBSIDIARIES - POTOMAC ELECTRIC POWER COMPANY exc-20201231x10kxexh217.htm EX-21.7 2919
11 SUBSIDIARIES - DELMARVA POWER & LIGHT COMPANY exc-20201231x10kxexh218.htm EX-21.8 2923
12 SUBSIDIARIES - ATLANTIC CITY ELECTRIC COMPANY exc-20201231x10kxexh219.htm EX-21.9 3115
13 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS - EXELON CORPORATION exc-20201231x10kxexh231.htm EX-23.1 3207
14 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS - EXELON GENERATION COMPANY exc-20201231x10kxexh232.htm EX-23.2 3143
15 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS - COMMONWEALTH EDISON CO exc-20201231x10kxexh233.htm EX-23.3 2828
16 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS - PECO ENERGY COMPANY exc-20201231x10kxexh234.htm EX-23.4 2854
17 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS - BALTIMORE GAS & ELECTRIC exc-20201231x10kxexh235.htm EX-23.5 2897
18 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS - POTOMAC ELECTRIC POWER CO exc-20201231x10kxexh236.htm EX-23.6 2887
19 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS - DELMARVA POWER & LIGHT CO exc-20201231x10kxexh237.htm EX-23.7 2921
20 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS - ATLANTIC CITY ELECTRIC exc-20201231x10kxexh238.htm EX-23.8 2884
21 POWER OF ATTORNEY - ANTHONY K. ANDERSON exc-20201231x10kxexh241.htm EX-24.1 3628
22 POWER OF ATTORNEY - ANN C. BERZIN exc-20201231x10kxexh242.htm EX-24.2 3493
23 POWER OF ATTORNEY - LAURIE BRLAS exc-20201231x10kxexh243.htm EX-24.3 3416
24 POWER OF ATTORNEY - CHRISTOPHER M. CRANE exc-20201231x10kxexh244.htm EX-24.4 3405
25 POWER OF ATTORNEY - YVES C. DE BALMANN exc-20201231x10kxexh245.htm EX-24.5 3467
26 POWER OF ATTORNEY - NICHOLAS DEBENEDICTIS exc-20201231x10kxexh246.htm EX-24.6 3427
27 POWER OF ATTORNEY - LINDA P. JOJO exc-20201231x10kxexh247.htm EX-24.7 3419
28 POWER OF ATTORNEY - PAUL JOSKOW exc-20201231x10kxexh248.htm EX-24.8 3417
29 POWER OF ATTORNEY - ROBERT J. LAWLESS exc-20201231x10kxexh249.htm EX-24.9 3411
30 POWER OF ATTORNEY - MARJORIE RODGERS CHESHIRE exc-20201231x10kxexh2410.htm EX-24.10 3470
31 POWER OF ATTORNEY - MAYO A. SHATTUCK III exc-20201231x10kxexh2412.htm EX-24.12 3450
32 POWER OF ATTORNEY - JOHN F. YOUNG exc-20201231x10kxexh2414.htm EX-24.14 3415
33 POWER OF ATTORNEY - JOHN RICHARDSON exc-20201231x10kxexh2415.htm EX-24.15 3423
34 POWER OF ATTORNEY - JAMES W. COMPTON exc-20201231x10kxexh2416.htm EX-24.16 3420
35 POWER OF ATTORNEY - CHRISTOPHER M. CRANE exc-20201231x10kxexh2417.htm EX-24.17 3463
36 POWER OF ATTORNEY - A. STEVEN CROWN exc-20201231x10kxexh2418.htm EX-24.18 3417
37 POWER OF ATTORNEY - NICHOLAS DEBENEDICTIS exc-20201231x10kxexh2419.htm EX-24.19 3413
38 POWER OF ATTORNEY - JOSEPH DOMINGUEZ exc-20201231x10kxexh2420.htm EX-24.20 3368
39 POWER OF ATTORNEY - PETER V. FAZIO, JR. exc-20201231x10kxexh2421.htm EX-24.21 3405
40 POWER OF ATTORNEY - MICHAEL H. MOSKOW exc-20201231x10kxexh2422.htm EX-24.22 3369
41 POWER OF ATTORNEY - CALVIN G. BUTLER, JR exc-20201231x10kxexh2423.htm EX-24.23 3397
42 POWER OF ATTORNEY - CHRISTOPHER M. CRANE exc-20201231x10kxexh2425.htm EX-24.25 3540
43 POWER OF ATTORNEY - NICHOLAS DEBENEDICTIS exc-20201231x10kxexh2427.htm EX-24.27 3519
44 POWER OF ATTORNEY - NELSON A. DIAZ exc-20201231x10kxexh2428.htm EX-24.28 3491
45 POWER OF ATTORNEY - JOHN S. GRADY exc-20201231x10kxexh2429.htm EX-24.29 3439
46 POWER OF ATTORNEY - ROSEMARIE B. GRECO exc-20201231x10kxexh2430.htm EX-24.30 3534
47 POWER OF ATTORNEY - MICHAEL A. INNOCENZO exc-20201231x10kxexh2431.htm EX-24.31 3549
48 POWER OF ATTORNEY - CHARISSE R. LILLIE exc-20201231x10kxexh2432.htm EX-24.32 3559
49 POWER OF ATTORNEY - CALVIN G. BUTLER, JR exc-20201231x10kxexh2433.htm EX-24.33 3503
50 POWER OF ATTORNEY - ANN C. BERZIN exc-20201231x10kxexh2434.htm EX-24.34 3505
51 POWER OF ATTORNEY - CARIM V. KHOUZAMI exc-20201231x10kxexh2435.htm EX-24.35 3710
52 POWER OF ATTORNEY - CHRISTOPHER M. CRANE exc-20201231x10kxexh2436.htm EX-24.36 3561
53 POWER OF ATTORNEY - MICHAEL E. CRYOR exc-20201231x10kxexh2437.htm EX-24.37 3516
54 POWER OF ATTORNEY - JAMES R. CURTISS exc-20201231x10kxexh2438.htm EX-24.38 3535
55 POWER OF ATTORNEY - JOSEPH HASKINS, JR. exc-20201231x10kxexh2439.htm EX-24.39 3529
56 POWER OF ATTORNEY - CALVIN G. BUTLER, JR exc-20201231x10kxexh2440.htm EX-24.40 3446
57 POWER OF ATTORNEY - MICHAEL D. SULLIVAN exc-20201231x10kxexh2441.htm EX-24.41 3555
58 POWER OF ATTORNEY - MARIA HARRIS TILDON exc-20201231x10kxexh2442.htm EX-24.42 3558
59 POWER OF ATTORNEY - CHRISTOPHER M. CRANE exc-20201231x10kxexh2443.htm EX-24.43 3539
60 POWER OF ATTORNEY - LINDA CROPP exc-20201231x10kxexh2444.htm EX-24.44 3484
61 POWER OF ATTORNEY - MICHAEL E. CRYOR exc-20201231x10kxexh2445.htm EX-24.45 3516
62 POWER OF ATTORNEY - ERNEST DIANASTASIS exc-20201231x10kxexh2446.htm EX-24.46 3503
63 POWER OF ATTORNEY - DEBRA P. DILORENZO exc-20201231x10kxexh2447.htm EX-24.47 3503
64 POWER OF ATTORNEY - CALVIN G. BUTLER, JR exc-20201231x10kxexh2448.htm EX-24.48 3425
65 POWER OF ATTORNEY - DAVID M. VELAZQUEZ exc-20201231x10kxexh2449.htm EX-24.49 3464
66 POWER OF ATTORNEY - J. TYLER ANTHONY exc-20201231x10kxexh2450.htm EX-24.50 3508
67 POWER OF ATTORNEY - PHILLIP S. BARNETT exc-20201231x10kxexh2451.htm EX-24.51 3695
68 POWER OF ATTORNEY - CHRISTOPHER M. CRANE exc-20201231x10kxexh2452.htm EX-24.52 3623
69 POWER OF ATTORNEY - MELISSA A. LAVINSON exc-20201231x10kxexh2453.htm EX-24.53 3569
70 POWER OF ATTORNEY - KEVIN M. MCGOWAN exc-20201231x10kxexh2454.htm EX-24.54 3580
71 POWER OF ATTORNEY - CALVIN G. BUTLER, JR exc-20201231x10kxexh2455.htm EX-24.55 3670
72 POWER OF ATTORNEY - DAVID M. VELAZQUEZ exc-20201231x10kxexh2456.htm EX-24.56 3918
73 POWER OF ATTORNEY - CALVIN G. BUTLER, JR. exc-20201231x10kxexh2457.htm EX-24.57 3774
74 POWER OF ATTORNEY - DAVID M. VELAZQUEZ exc-20201231x10kxexh2458.htm EX-24.58 3989
75 POWER OF ATTORNEY - DAVID M. VELAZQUEZ exc-20201231x10kxexh2459.htm EX-24.59 3893
76 CERTIFICATION FILED BY CHRISTOPHER M. CRANE FOR EXELON CORPORATION exc-20201231x10kxexh311.htm EX-31.1 10097
77 CERTIFICATION FILED BY JOSEPH NIGRO FOR EXELON CORPORATION exc-20201231x10kxexh312.htm EX-31.2 9771
78 CERTIFICATION FILED BY CHRISTOPHER M. CRANE FOR EXELON CORPORATION exc-20201231x10kxexh313.htm EX-31.3 9936
79 CERTIFICATION FILED BY BRYAN P. WRIGHT FOR EXELON GENERATION COMPANY, LLC exc-20201231x10kxexh314.htm EX-31.4 10114
80 CERTIFICATION FILED BY JOSEPH DOMINGUEZ FOR COMMONWEALTH EDISON COMPANY exc-20201231x10kxexh315.htm EX-31.5 10157
81 CERTIFICATION FILED BY JEANNE M. JONES FOR COMMONWEALTH EDISON COMPANY exc-20201231x10kxexh316.htm EX-31.6 10265
82 CERTIFICATION FILED BY MICHAEL A. INNOCENZO FOR PECO ENERGY COMPANY exc-20201231x10kxexh317.htm EX-31.7 10122
83 CERTIFICATION FILED BY ROBERT J. STEFANI FOR PECO ENERGY COMPANY exc-20201231x10kxexh318.htm EX-31.8 10098
84 CERTIFICATION FILED BY CARIM V. KHOUZAMI FOR BALTIMORE GAS AND ELECTRIC CO exc-20201231x10kxexh319.htm EX-31.9 10097
85 CERTIFICATION FILED BY DAVID M. VAHOS FOR BALTIMORE GAS AND ELECTRIC CO exc-20201231x10kxexh3110.htm EX-31.10 10131
86 CERTIFICATION FILED BY DAVID M. VELAZQUEZ FOR PEPCO HOLDINGS LLC exc-20201231x10kxexh3111.htm EX-31.11 9660
87 CERTIFICATION FILED BY PHILLIP S. BARNETT FOR PEPCO HOLDINGS LLC exc-20201231x10kxexh3112.htm EX-31.12 9683
88 CERTIFICATION FILED BY DAVID M. VELAZQUEZ FOR POTOMAC ELECTRIC POWER COMPANY exc-20201231x10kxexh3113.htm EX-31.13 9684
89 CERTIFICATION FILED BY PHILLIP S. BARNETT FOR POTOMAC ELECTRIC POWER COMPANY exc-20201231x10kxexh3114.htm EX-31.14 9707
90 CERTIFICATION FILED BY DAVID M. VELAZQUEZ FOR DELMARVA POWER & LIGHT COMPANY exc-20201231x10kxexh3115.htm EX-31.15 9688
91 CERTIFICATION FILED BY PHILLIP S. BARNETT FOR DELMARVA POWER & LIGHT COMPANY exc-20201231x10kxexh3116.htm EX-31.16 9711
92 CERTIFICATION FILED BY DAVID M. VELAZQUEZ FOR ATLANTIC CITY ELECTRIC COMPANY exc-20201231x10kxexh3117.htm EX-31.17 9684
93 CERTIFICATION FILED BY PHILLIP S. BARNETT FOR ATLANTIC CITY ELECTRIC COMPANY exc-20201231x10kxexh3118.htm EX-31.18 9707
94 CERTIFICATION FILED BY CHRISTOPHER M. CRANE FOR EXELON CORPORATION exc-20201231x10kxexh321.htm EX-32.1 3486
95 CERTIFICATION FILED BY JOSEPH NIGRO FOR EXELON CORPORATION exc-20201231x10kxexh322.htm EX-32.2 3511
96 CERTIFICATION FILED BY CHRISTOPHER M. CRANE FOR EXELON CORPORATION exc-20201231x10kxexh323.htm EX-32.3 3500
97 CERTIFICATION FILED BY BRYAN P. WRIGHT FOR EXELON GENERATION COMPANY, LLC exc-20201231x10kxexh324.htm EX-32.4 3519
98 CERTIFICATION FILED BY JOSEPH DOMINGUEZ FOR COMMONWEALTH EDISON COMPANY exc-20201231x10kxexh325.htm EX-32.5 3413
99 CERTIFICATION FILED BY JEANNE M. JONES FOR COMMONWEALTH EDISON COMPANY exc-20201231x10kxexh326.htm EX-32.6 3521
100 CERTIFICATION FILED BY MICHAEL A. INNOCENZO FOR PECO ENERGY COMPANY exc-20201231x10kxexh327.htm EX-32.7 3415
101 CERTIFICATION FILED BY ROBERT J. STEFANI FOR PECO ENERGY COMPANY exc-20201231x10kxexh328.htm EX-32.8 3429
102 CERTIFICATION FILED BY CARIM V. KHOUZAMI FOR BALTIMORE GAS AND ELECTRIC CO exc-20201231x10kxexh329.htm EX-32.9 3437
103 CERTIFICATION FILED BY DAVID M. VAHOS FOR BALTIMORE GAS AND ELECTRIC CO exc-20201231x10kxexh3210.htm EX-32.10 3463
104 CERTIFICATION FILED BY DAVID M. VELAZQUEZ FOR PEPCO HOLDINGS LLC exc-20201231x10kxexh3211.htm EX-32.11 3355
105 CERTIFICATION FILED BY PHILLIP S. BARNETT FOR PEPCO HOLDINGS LLC exc-20201231x10kxexh3212.htm EX-32.12 3378
106 CERTIFICATION FILED BY DAVID M. VELAZQUEZ FOR POTOMAC ELECTRIC POWER COMPANY exc-20201231x10kxexh3213.htm EX-32.13 3391
107 CERTIFICATION FILED BY PHILLIP S. BARNETT FOR POTOMAC ELECTRIC POWER COMPANY exc-20201231x10kxexh3214.htm EX-32.14 3414
108 CERTIFICATION FILED BY DAVID M. VELAZQUEZ FOR DELMARVA POWER & LIGHT COMPANY exc-20201231x10kxexh3215.htm EX-32.15 3399
109 CERTIFICATION FILED BY PHILLIP S. BARNETT FOR DELMARVA POWER & LIGHT COMPANY exc-20201231x10kxexh3216.htm EX-32.16 3422
110 CERTIFICATION FILED BY DAVID M. VELAZQUEZ FOR ATLANTIC CITY ELECTRIC COMPANY exc-20201231x10kxexh3217.htm EX-32.17 3418
111 CERTIFICATION FILED BY PHILLIP S. BARNETT FOR ATLANTIC CITY ELECTRIC COMPANY exc-20201231x10kxexh3218.htm EX-32.18 3414
117 COMPARISON OF 5-YEAR CUMULATIVE RETURN exc-20201231_g1.jpg GRAPHIC 155899
118 EXELON LOGO image_01a.jpg GRAPHIC 80400
  Complete submission text file 0001109357-21-000022.txt   89112650

Data Files

Seq Description Document Type Size
112 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT exc-20201231.xsd EX-101.SCH 252209
113 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT exc-20201231_cal.xml EX-101.CAL 281503
114 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT exc-20201231_def.xml EX-101.DEF 2266216
115 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT exc-20201231_lab.xml EX-101.LAB 2514673
116 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT exc-20201231_pre.xml EX-101.PRE 2439497
119 EXTRACTED XBRL INSTANCE DOCUMENT exc-20201231_htm.xml XML 25800282
Mailing Address 500 NORTH WAKEFIELD DRIVE NEWARK DE 19702
Business Address 500 NORTH WAKEFIELD DRIVE NEWARK DE 19702 202-872-2000
ATLANTIC CITY ELECTRIC CO (Filer) CIK: 0000008192 (see all company filings)

IRS No.: 210398280 | State of Incorp.: NJ | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-03559 | Film No.: 21672120
SIC: 4911 Electric Services
Office of Energy & Transportation

Mailing Address 2 CENTER PLAZA 110 W. FAYETTE STREET BALTIMORE MD 21201
Business Address 2 CENTER PLAZA 110 W. FAYETTE STREET BALTIMORE MD 21201 4104702800
BALTIMORE GAS & ELECTRIC CO (Filer) CIK: 0000009466 (see all company filings)

IRS No.: 520280210 | State of Incorp.: MD | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-01910 | Film No.: 21672124
SIC: 4931 Electric & Other Services Combined
Office of Energy & Transportation

Mailing Address 440 S LASALLE STREET CHICAGO IL 60605-1028
Business Address 440 S LASALLE STREET CHICAGO IL 60605-1028 3123944321
COMMONWEALTH EDISON Co (Filer) CIK: 0000022606 (see all company filings)

IRS No.: 360938600 | State of Incorp.: IL | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-01839 | Film No.: 21672126
SIC: 4911 Electric Services
Office of Energy & Transportation

Mailing Address 800 KING ST P O BOX 231 WILMINGTON DE 19899
Business Address 800 KING ST PO BOX 231 WILMINGTON DE 19899 3024293114
DELMARVA POWER & LIGHT CO /DE/ (Filer) CIK: 0000027879 (see all company filings)

IRS No.: 510084283 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-01405 | Film No.: 21672121
SIC: 4931 Electric & Other Services Combined
Office of Energy & Transportation

Mailing Address 2301 MARKET STREET PO BOX 8699 PHILADELPHIA PA 19101-8699
Business Address 2301 MARKET STREET PO BOX 8699 PHILADELPHIA PA 19101-8699 215-841-4000
PECO ENERGY CO (Filer) CIK: 0000078100 (see all company filings)

IRS No.: 230970240 | State of Incorp.: PA | Fiscal Year End: 1231
SIC: 4931 Electric & Other Services Combined
Office of Energy & Transportation

Mailing Address 701 NINTH STREET, NW OFFICE OF CORPORATE SECY., ROOM 1300 WASHINGTON DC 20068
Business Address 701 NINTH STREET, NW OFFICE OF CORPORATE SECY., ROOM 1300 WASHINGTON DC 20068 2028722000
POTOMAC ELECTRIC POWER CO (Filer) CIK: 0000079732 (see all company filings)

IRS No.: 530127880 | State of Incorp.: VA | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-01072 | Film No.: 21672122
SIC: 4911 Electric Services
Office of Energy & Transportation

Mailing Address PO BOX 805398 CHICAGO IL 60680-5398
Business Address PO BOX 805398 CHICAGO IL 60680-5398 3123947399
EXELON CORP (Filer) CIK: 0001109357 (see all company filings)

IRS No.: 232990190 | State of Incorp.: PA | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-16169 | Film No.: 21672119
SIC: 4931 Electric & Other Services Combined
Office of Energy & Transportation

Mailing Address SUITE 1300 701 NINTH STREET, NW WASHINGTON DC 20068
Business Address SUITE 1300 701 NINTH STREET, NW WASHINGTON DC 20068 202-872-2000
PEPCO HOLDINGS LLC (Filer) CIK: 0001135971 (see all company filings)

IRS No.: 522297449 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-31403 | Film No.: 21672123
SIC: 4931 Electric & Other Services Combined
Office of Energy & Transportation

Mailing Address 300 EXELON WAY KENNETT SQUARE PA 19348-2473
Business Address 300 EXELON WAY KENNETT SQUARE PA 19348-2473 610-765-5959
EXELON GENERATION CO LLC (Filer) CIK: 0001168165 (see all company filings)

IRS No.: 233064219
Type: 10-K | Act: 34 | File No.: 333-85496 | Film No.: 21672127
SIC: 4911 Electric Services
Office of Energy & Transportation