2015 Illinois Power Outage Report

In 2015, the average Illinois customer went without power for about 2.3 hours, the 28th worst of 49 states (US average 2.8 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer

2.3

vs prior year

no earlier year loaded

Customer-hours out

13.5M

Peak customers out

207,255

across the state at once

EAGLE-I coverage

n/a

of IL customers

Counties reporting

100

Illinois year over year

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

Month by month, 2015

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

CSV JSON

All 100 Illinois counties, 2015

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	Stark County	40.7	129K	3,173	3,173	209
2	Henderson County	38.3	129K	3,381	3,381	167
3	Adams County	26.5	843K	31,760	21,688	416
4	Marshall County	17.2	136K	7,906	4,821	280
5	Warren County	15.7	129K	8,244	6,801	213
6	Calhoun County	15.3	29K	1,865	1,391	37
7	Mercer County	13.6	122K	8,972	6,308	248
8	Woodford County	10.8	260K	24,080	7,536	319
9	Lee County	9.4	242K	25,665	4,559	482
10	Scott County	8.6	19K	2,163	1,172	88
11	Peoria County	8.2	1.1M	137,518	23,261	567
12	Pike County	7.7	52K	6,793	4,685	161
13	Knox County	7.7	200K	25,998	4,503	429
14	Livingston County	7.5	190K	25,191	8,057	462
15	Tazewell County	7.1	573K	80,878	18,680	425
16	Hancock County	6.0	54K	9,010	1,984	209
17	Mason County	6.0	29K	4,847	1,007	159
18	Stephenson County	5.2	64K	12,248	3,957	448
19	Greene County	4.9	26K	5,200	3,428	119
20	Alexander County	4.9	14K	2,842	666	66
21	Logan County	4.4	47K	10,899	3,034	359
22	Grundy County	4.2	184K	43,433	6,911	518
23	Macoupin County	3.9	61K	15,453	3,627	363
24	McLean County	3.8	312K	81,860	10,089	595
25	Putnam County	3.5	8,744	2,501	821	133
26	Bureau County	3.5	64K	18,642	2,289	365
27	Gallatin County	3.3	8,215	2,453	1,562	139
28	Henry County	3.2	130K	40,978	2,408	363
29	Fulton County	3.1	40K	12,940	2,680	321
30	St. Clair County	3.1	292K	94,355	14,467	538
31	Christian County	3.1	42K	13,660	8,142	250
32	Morgan County	2.9	48K	16,522	4,172	317
33	Washington County	2.8	20K	7,318	1,338	237
34	Perry County	2.7	32K	11,975	1,555	247
35	Whiteside County	2.6	114K	44,026	6,624	481
36	Douglas County	2.6	21K	8,333	2,382	226
37	Jefferson County	2.5	58K	22,670	3,193	394
38	Menard County	2.5	10K	4,167	1,988	116
39	Kankakee County	2.5	214K	85,550	5,764	715
40	Ford County	2.4	13K	5,462	1,356	163
41	De Witt County	2.3	16K	6,665	1,391	197
42	LaSalle County	2.3	144K	63,017	3,247	645
43	Macon County	2.2	101K	45,051	7,290	698
44	Kane County	2.1	274K	127,850	14,051	934
45	McDonough County	2.1	27K	12,745	1,381	207
46	DuPage County	2.1	658K	313,751	26,874	627
47	Bond County	2.1	12K	5,736	727	156
48	McHenry County	2.0	247K	120,381	16,151	853
49	Shelby County	2.0	11K	5,708	1,747	131
50	Piatt County	2.0	12K	6,148	872	243
51	Randolph County	1.9	29K	14,970	2,821	376
52	Vermilion County	1.9	90K	46,373	5,944	575
53	Will County	1.9	561K	299,468	22,598	638
54	Jersey County	1.8	14K	7,718	1,842	189
55	Jo Daviess County	1.8	6,623	3,617	1,706	131
56	Boone County	1.8	38K	20,979	5,586	355
57	Lawrence County	1.7	14K	7,796	2,049	99
58	Ogle County	1.7	73K	42,029	3,686	429
59	Brown County	1.6	4,937	3,007	1,885	45
60	Franklin County	1.6	31K	19,260	3,866	392
61	Madison County	1.6	173K	107,855	12,267	578
62	Cook County	1.6	3.4M	2,162,007	144,538	139
63	Iroquois County	1.4	15K	10,038	898	308
64	Pulaski County	1.4	4,536	3,212	1,147	123
65	Winnebago County	1.3	163K	120,789	3,672	864
66	Cass County	1.3	7,760	6,087	1,523	154
67	Union County	1.2	12K	10,277	4,789	173
68	Rock Island County	1.2	100K	83,685	7,713	411
69	Jackson County	1.2	31K	26,616	3,337	464
70	Marion County	1.1	17K	15,234	1,441	426
71	Champaign County	1.1	103K	90,035	4,206	642
72	Fayette County	1.1	8,050	7,295	414	218
73	Williamson County	1.1	39K	35,624	5,033	491
74	Lake County	1.0	602K	581,008	12,917	756
75	Carroll County	1.0	7,508	7,336	469	139
76	DeKalb County	1.0	81K	79,682	4,810	598
77	Clinton County	1.0	12K	12,465	802	203
78	Coles County	1.0	24K	24,455	8,078	325
79	Effingham County	1.0	14K	14,830	4,910	205
80	Johnson County	0.9	5,986	6,500	1,274	128
81	Montgomery County	0.9	9,487	10,344	1,541	262
82	Monroe County	0.9	14K	15,588	1,002	198
83	White County	0.9	7,822	8,994	1,007	206
84	Edwards County	0.9	3,489	4,061	2,077	84
85	Edgar County	0.8	6,902	8,690	741	156
86	Saline County	0.7	9,247	12,967	2,210	315
87	Crawford County	0.5	5,490	10,220	1,805	130
88	Clay County	0.5	4,622	9,085	895	76
89	Kendall County	0.5	47K	92,751	3,038	556
90	Sangamon County	0.5	65K	138,475	3,157	436
91	Clark County	0.4	3,316	7,829	687	76
92	Richland County	0.4	3,565	9,109	494	177
93	Hamilton County	0.4	1,639	4,619	290	20
94	Schuyler County	0.3	811	2,847	121	61
95	Jasper County	0.3	1,175	4,528	314	32
96	Moultrie County	0.2	1,471	6,492	586	53
97	Massac County	0.2	1,839	8,175	787	54
98	Cumberland County	0.2	928	4,929	392	46
99	Wayne County	0.1	1,547	10,404	437	16
100	Wabash County	0.1	1,088	9,760	515	29

Biggest Illinois outages of 2015

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	March 11, 2015 10:00	March 13, 2015 10:30	2d	144,538	46K
2	Cook County, IL	July 19, 2015 03:00	August 4, 2015 17:45	16d 14h	38,285	667K
3	DuPage County, IL	March 9, 2015 19:30	March 11, 2015 08:30	1d 13h	26,874	37K
4	Peoria County, IL	December 24, 2015 03:00	December 31, 2015 00:15	6d 21h	23,261	729K
5	Will County, IL	March 9, 2015 14:30	March 10, 2015 04:00	13h 30m	22,598	24K
6	Adams County, IL	July 12, 2015 23:00	July 19, 2015 01:45	6d 2h	21,688	780K
7	Tazewell County, IL	December 26, 2015 22:00	December 31, 2015 00:15	4d 2h	18,680	412K
8	McHenry County, IL	June 8, 2015 19:15	June 9, 2015 04:00	8h 45m	16,151	5,477
9	Will County, IL	March 12, 2015 13:00	March 13, 2015 11:00	22h	14,917	4,381
10	St. Clair County, IL	June 20, 2015 21:00	June 29, 2015 09:00	8d 12h	14,467	149K
11	Kane County, IL	June 8, 2015 17:00	June 9, 2015 05:30	12h 30m	14,051	5,711
12	Cook County, IL	August 5, 2015 04:30	August 26, 2015 11:00	21d 6h	13,374	286K
13	Cook County, IL	July 7, 2015 03:15	July 19, 2015 01:45	11d 22h	12,984	248K
14	Lake County, IL	November 21, 2015 11:30	November 24, 2015 11:00	2d 23h	12,917	127K
15	Will County, IL	February 1, 2015 09:00	February 3, 2015 05:30	1d 20h	12,862	124K
16	McHenry County, IL	October 21, 2015 22:00	October 22, 2015 01:30	3h 30m	12,600	12K
17	Madison County, IL	June 25, 2015 20:30	June 27, 2015 08:00	1d 11h	12,267	29K
18	Peoria County, IL	June 7, 2015 12:45	June 10, 2015 15:15	3d 2h	11,440	139K
19	Lake County, IL	February 20, 2015 03:00	February 20, 2015 10:30	7h 30m	11,033	16K
20	DuPage County, IL	March 12, 2015 22:00	March 13, 2015 04:30	6h 30m	10,348	2,595
21	McLean County, IL	December 28, 2015 08:30	December 31, 2015 00:15	2d 15h	10,089	247K
22	Cook County, IL	December 23, 2015 11:30	December 26, 2015 00:00	2d 12h	10,081	43K
23	Lake County, IL	August 2, 2015 19:00	August 4, 2015 17:45	1d 22h	10,071	119K
24	Lake County, IL	March 13, 2015 02:00	March 13, 2015 05:00	3h	10,018	2,508
25	Peoria County, IL	June 20, 2015 21:30	June 21, 2015 22:00	1d	9,563	45K

EAGLE-I tracked about n/a of Illinois's electricity customers in 2015; 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 2018 2017 2016

Other states in 2015:WV WA MI NC RI LA OK NJ

Part of the 2015 US Power Outage Report.

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