2018 Illinois Power Outage Report

In 2018, the average Illinois customer went without power for about 2.5 hours, the 30th worst of 51 states (US average 5.3 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer

2.5

vs prior year

▲ 73%

vs 2017

Customer-hours out

14.7M

Peak customers out

195,419

across the state at once

EAGLE-I coverage

92%

of IL customers

Counties reporting

102

Illinois year over year

Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2018

Customer-hours without power across Illinois; November was the worst.

CSV JSON

All 102 Illinois counties, 2018

Ranked by average hours without power per customer. Each county links to its annual report.

CSV JSON

#	County	Hrs / customer	Customer-hours	Customers	Peak out	Events
1	Hardin County	19.2	37K	1,910	1,712	197
2	Scott County	16.9	37K	2,163	2,163	400
3	Franklin County	14.4	276K	19,260	4,074	921
4	Jefferson County	12.9	292K	22,670	6,191	906
5	Washington County	12.4	90K	7,318	2,317	652
6	Pope County	12.2	22K	1,842	1,344	261
7	Gallatin County	11.8	29K	2,453	2,255	262
8	Stark County	10.9	35K	3,173	1,140	209
9	Jo Daviess County	9.5	34K	3,617	1,588	132
10	St. Clair County	8.1	763K	94,355	28,750	672
11	Pike County	7.5	51K	6,793	3,970	507
12	Fayette County	6.9	50K	7,295	1,601	511
13	Perry County	6.7	80K	11,975	4,349	349
14	Clinton County	6.6	82K	12,465	5,259	382
15	Saline County	6.2	81K	12,967	4,477	568
16	Calhoun County	6.1	11K	1,865	928	116
17	Clay County	5.4	49K	9,085	5,589	319
18	Bureau County	5.3	99K	18,642	4,102	442
19	Williamson County	5.1	180K	35,624	7,504	759
20	Christian County	4.8	66K	13,660	2,537	350
21	Johnson County	4.7	31K	6,500	2,467	319
22	Piatt County	4.5	28K	6,148	2,898	308
23	Putnam County	4.4	11K	2,501	816	176
24	Marshall County	4.3	34K	7,906	971	322
25	Kane County	4.3	555K	127,850	15,488	934
26	Madison County	4.3	468K	107,855	21,165	700
27	Ford County	4.3	24K	5,462	3,062	388
28	DuPage County	4.2	1.3M	313,751	27,278	709
29	Mercer County	3.8	34K	8,972	2,202	560
30	Alexander County	3.8	11K	2,842	837	79
31	LaSalle County	3.8	238K	63,017	5,602	759
32	McHenry County	3.7	447K	120,381	24,431	854
33	Union County	3.7	38K	10,277	4,715	184
34	Bond County	3.7	21K	5,736	2,390	387
35	Crawford County	3.3	33K	10,220	3,644	206
36	Shelby County	3.2	18K	5,708	711	225
37	Randolph County	3.2	48K	14,970	2,147	619
38	Hancock County	3.2	29K	9,010	4,062	243
39	Marion County	3.1	48K	15,234	2,381	447
40	Pulaski County	3.1	10K	3,212	1,100	107
41	De Witt County	3.1	21K	6,665	1,537	237
42	Stephenson County	3.0	37K	12,248	1,317	431
43	Greene County	2.9	15K	5,200	2,337	144
44	Knox County	2.9	75K	25,998	1,795	722
45	Livingston County	2.8	71K	25,191	3,494	503
46	Iroquois County	2.8	28K	10,038	1,167	530
47	Macoupin County	2.7	42K	15,453	3,431	558
48	Montgomery County	2.4	24K	10,344	842	485
49	Logan County	2.3	25K	10,899	1,179	476
50	Morgan County	2.3	38K	16,522	1,988	521
51	Carroll County	2.3	17K	7,336	1,119	104
52	Warren County	2.3	19K	8,244	1,206	428
53	Jackson County	2.2	59K	26,616	3,217	532
54	Cook County	2.2	4.7M	2,162,007	101,662	208
55	Will County	2.2	652K	299,468	14,425	617
56	Fulton County	2.2	28K	12,940	1,310	434
57	Mason County	2.2	10K	4,847	681	209
58	Douglas County	2.1	18K	8,333	1,717	335
59	Winnebago County	2.1	255K	120,789	4,370	869
60	Menard County	2.1	8,642	4,167	807	186
61	Jersey County	2.0	16K	7,718	1,751	260
62	Macon County	1.9	87K	45,051	4,322	865
63	Lawrence County	1.9	15K	7,796	5,250	202
64	Champaign County	1.9	168K	90,035	5,636	805
65	Schuyler County	1.8	5,228	2,847	828	95
66	Vermilion County	1.7	80K	46,373	3,411	766
67	Boone County	1.7	36K	20,979	2,076	429
68	Peoria County	1.6	224K	137,518	6,440	889
69	Grundy County	1.6	68K	43,433	3,120	474
70	Monroe County	1.6	24K	15,588	2,156	272
71	McLean County	1.5	126K	81,860	9,593	839
72	Lake County	1.5	887K	581,008	20,513	861
73	DeKalb County	1.5	122K	79,682	3,162	640
74	Hamilton County	1.5	6,973	4,619	565	197
75	Henderson County	1.5	5,096	3,381	227	152
76	Massac County	1.4	11K	8,175	731	68
77	Ogle County	1.4	59K	42,029	2,211	447
78	Kendall County	1.4	127K	92,751	21,067	540
79	Tazewell County	1.3	108K	80,878	3,018	703
80	Kankakee County	1.3	113K	85,550	2,699	789
81	Richland County	1.3	12K	9,109	1,210	244
82	Rock Island County	1.3	106K	83,685	5,794	950
83	Effingham County	1.2	18K	14,830	811	339
84	Lee County	1.1	28K	25,665	1,425	366
85	Whiteside County	1.1	48K	44,026	1,885	420
86	Woodford County	1.1	26K	24,080	3,022	433
87	McDonough County	1.0	13K	12,745	835	240
88	Cass County	1.0	5,843	6,087	1,631	165
89	Edgar County	0.9	7,879	8,690	906	252
90	Moultrie County	0.7	4,841	6,492	603	67
91	Clark County	0.7	5,714	7,829	368	122
92	Jasper County	0.7	3,112	4,528	301	58
93	Adams County	0.6	20K	31,760	967	648
94	Edwards County	0.6	2,488	4,061	572	140
95	Henry County	0.5	22K	40,978	1,243	431
96	Cumberland County	0.5	2,489	4,929	371	56
97	Coles County	0.4	10K	24,455	2,000	354
98	Sangamon County	0.4	55K	138,475	3,138	546
99	White County	0.4	3,240	8,994	612	120
100	Brown County	0.3	977	3,007	56	61
101	Wayne County	0.2	2,491	10,404	420	30
102	Wabash County	0.2	1,576	9,760	267	36

Biggest Illinois outages of 2018

Up to 25 county outage episodes with the most customers out at once.

CSV JSON

#	County	Started (UTC)	Ended (UTC)	Duration	Peak out	Customer-hours
1	Cook County, IL	November 23, 2018 13:30	December 7, 2018 08:30	13d 19h	101,662	2.4M
2	St. Clair County, IL	June 26, 2018 09:45	July 5, 2018 04:00	8d 18h	28,750	562K
3	DuPage County, IL	November 25, 2018 18:30	December 1, 2018 06:30	5d 12h	27,278	764K
4	McHenry County, IL	September 25, 2018 18:00	September 27, 2018 23:30	2d 5h	24,431	220K
5	Madison County, IL	June 28, 2018 12:15	July 2, 2018 11:00	3d 22h	21,165	241K
6	Kendall County, IL	January 10, 2018 19:30	January 10, 2018 22:00	2h 30m	21,067	24K
7	Lake County, IL	November 25, 2018 18:00	November 30, 2018 10:00	4d 16h	20,513	471K
8	Kane County, IL	August 29, 2018 00:00	August 30, 2018 10:00	1d 10h	15,488	115K
9	Cook County, IL	May 1, 2018 10:00	May 2, 2018 10:00	1d	14,659	20K
10	Will County, IL	October 20, 2018 09:00	October 24, 2018 05:00	3d 20h	14,425	144K
11	DuPage County, IL	August 27, 2018 10:30	August 30, 2018 08:00	2d 21h	13,204	89K
12	Cook County, IL	October 18, 2018 08:00	October 24, 2018 06:30	5d 22h	12,824	96K
13	Will County, IL	November 25, 2018 12:00	November 29, 2018 10:00	3d 22h	12,391	153K
14	Cook County, IL	March 11, 2018 12:30	March 12, 2018 03:30	15h	12,278	22K
15	Kane County, IL	November 25, 2018 23:00	November 30, 2018 11:00	4d 12h	12,027	233K
16	Cook County, IL	August 30, 2018 11:30	September 11, 2018 09:30	11d 22h	11,366	145K
17	Cook County, IL	August 23, 2018 10:30	August 30, 2018 10:00	6d 23h	10,122	136K
18	McLean County, IL	August 9, 2018 15:30	August 10, 2018 06:15	14h 45m	9,593	6,091
19	Lake County, IL	June 30, 2018 16:00	July 4, 2018 15:00	3d 23h	8,993	32K
20	Cook County, IL	September 24, 2018 03:30	October 1, 2018 05:30	7d 2h	8,566	89K
21	Cook County, IL	July 1, 2018 11:00	July 18, 2018 23:15	17d 12h	8,454	209K
22	Williamson County, IL	June 28, 2018 19:00	July 2, 2018 00:15	3d 5h	7,504	129K
23	Cook County, IL	May 2, 2018 11:00	May 4, 2018 09:00	1d 22h	7,326	76K
24	Kane County, IL	January 10, 2018 12:30	January 10, 2018 23:30	11h	7,272	7,632
25	Lake County, IL	May 6, 2018 14:00	May 6, 2018 23:00	9h	7,093	23K

EAGLE-I tracked about 92% of Illinois's electricity customers in 2018; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.

Illinois by year:2025 2024 2023 2022 2021 2020 2019 2017 2016 2015

Other states in 2018:NC VA WV MA RI VT ME MI

Part of the 2018 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.