2020 South Dakota Power Outage Report

In 2020, the average South Dakota customer went without power for about 4.6 hours, the 30th worst of 51 states (US average 8.0 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer

4.6

vs prior year

▲ 21%

vs 2019

Customer-hours out

2.1M

Peak customers out

9,944

across the state at once

EAGLE-I coverage

79%

of SD customers

Counties reporting

South Dakota year over year

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

Month by month, 2020

Customer-hours without power across South Dakota; October was the worst.

CSV JSON

All 62 South Dakota counties, 2020

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	Yankton County	29.5	353K	11,940	1,406	184
2	Lyman County	22.9	68K	2,969	628	69
3	Hamlin County	22.7	50K	2,187	1,049	125
4	Harding County	19.9	36K	1,828	420	98
5	Perkins County	14.2	13K	890	773	109
6	Clark County	12.1	19K	1,587	563	56
7	Brule County	11.4	32K	2,837	2,117	113
8	Marshall County	8.2	21K	2,509	834	95
9	Faulk County	8.2	9,525	1,168	793	47
10	Minnehaha County	7.0	641K	91,940	7,575	417
11	McCook County	6.6	20K	3,102	1,160	110
12	Deuel County	6.5	9,805	1,505	304	124
13	Charles Mix County	6.4	31K	4,915	1,464	114
14	Miner County	6.3	6,747	1,069	353	49
15	Haakon County	6.3	8,650	1,375	704	72
16	Beadle County	5.9	58K	9,787	7,612	157
17	Lake County	5.6	45K	8,064	451	116
18	Custer County	5.5	25K	4,481	704	171
19	Turner County	5.5	27K	4,964	1,479	136
20	Douglas County	5.5	9,536	1,745	973	16
21	Bon Homme County	5.4	16K	2,917	1,101	84
22	Jones County	5.0	3,477	697	415	46
23	Stanley County	5.0	13K	2,520	197	70
24	Aurora County	5.0	6,778	1,368	520	63
25	Buffalo County	4.8	2,864	592	592	48
26	Fall River County	4.7	19K	4,055	1,459	109
27	Moody County	4.5	16K	3,517	488	189
28	Lawrence County	4.4	69K	15,540	4,802	158
29	McPherson County	3.8	4,659	1,223	654	15
30	Jackson County	3.8	3,470	915	132	52
31	Davison County	3.8	44K	11,593	3,951	222
32	Spink County	3.6	12K	3,353	2,219	66
33	Hutchinson County	3.4	19K	5,650	1,332	236
34	Sanborn County	2.6	3,846	1,463	556	56
35	Pennington County	2.6	175K	68,130	5,384	309
36	Hyde County	2.5	1,557	615	125	14
37	Roberts County	2.5	10K	4,096	1,155	39
38	Lincoln County	2.4	77K	31,561	7,113	188
39	Meade County	2.4	35K	14,286	781	179
40	Day County	2.3	9,390	4,051	571	129
41	Butte County	2.3	11K	4,717	178	97
42	Potter County	2.0	2,307	1,138	701	12
43	Brown County	1.7	32K	19,238	3,190	199
44	Union County	1.7	5,600	3,359	226	109
45	Kingsbury County	1.6	4,269	2,587	290	30
46	Jerauld County	1.0	1,030	1,049	115	65
47	Oglala Lakota County	0.9	3,830	4,164	907	50
48	Hanson County	0.8	1,661	1,960	418	62
49	Brookings County	0.8	15K	19,030	2,232	188
50	Hughes County	0.6	9,119	14,362	428	14
51	Hand County	0.6	1,243	1,991	182	5
52	Ziebach County	0.6	847	1,374	31	11
53	Walworth County	0.6	1,456	2,370	1,025	20
54	Grant County	0.5	1,585	3,124	725	33
55	Corson County	0.5	937	1,975	139	8
56	Codington County	0.4	11K	24,302	1,441	58
57	Clay County	0.2	1,955	8,444	100	19
58	Bennett County	0.2	139	715	30	3
59	Edmunds County	0.2	418	2,191	295	18
60	Campbell County	0.1	57	576	10	5
61	Mellette County	0.1	77	957	17	8
62	Tripp County	0.0	4	4,744	2	3

Biggest South Dakota outages of 2020

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	Beadle County, SD	June 18, 2020 06:00	June 20, 2020 21:45	2d 15h	7,612	32K
2	Minnehaha County, SD	October 22, 2020 08:30	October 22, 2020 22:45	14h 15m	7,575	6,846
3	Lincoln County, SD	January 19, 2020 04:30	January 20, 2020 21:15	1d 16h	7,113	6,615
4	Pennington County, SD	June 20, 2020 22:45	June 21, 2020 02:30	3h 45m	5,384	4,412
5	Lawrence County, SD	September 8, 2020 04:00	September 9, 2020 02:45	22h 45m	4,802	10K
6	Minnehaha County, SD	October 4, 2020 23:30	October 5, 2020 03:15	3h 45m	3,983	4,887
7	Davison County, SD	June 9, 2020 11:15	June 11, 2020 04:15	1d 17h	3,951	26K
8	Minnehaha County, SD	February 19, 2020 13:45	February 28, 2020 15:30	9d 1h	3,443	25K
9	Brown County, SD	September 16, 2020 18:45	September 16, 2020 20:45	2h	3,190	5,708
10	Minnehaha County, SD	June 15, 2020 13:30	July 14, 2020 02:00	28d 12h	2,738	29K
11	Minnehaha County, SD	July 23, 2020 13:00	July 23, 2020 20:15	7h 15m	2,621	2,990
12	Brown County, SD	May 1, 2020 17:30	May 2, 2020 02:15	8h 45m	2,362	4,833
13	Minnehaha County, SD	April 15, 2020 12:45	May 18, 2020 20:30	33d 7h	2,277	105K
14	Lincoln County, SD	December 4, 2020 16:15	December 22, 2020 22:30	18d 6h	2,274	5,205
15	Brookings County, SD	July 1, 2020 13:15	July 21, 2020 04:00	19d 14h	2,232	4,553
16	Lincoln County, SD	March 16, 2020 16:00	April 3, 2020 15:15	17d 23h	2,226	8,932
17	Spink County, SD	April 22, 2020 14:00	April 22, 2020 18:00	4h	2,219	5,029
18	Minnehaha County, SD	January 1, 2020 00:00	January 18, 2020 19:45	17d 19h	2,164	201K
19	Brown County, SD	June 15, 2020 12:15	June 15, 2020 18:45	6h 30m	2,158	3,025
20	Brule County, SD	July 4, 2020 16:45	July 5, 2020 15:15	22h 30m	2,117	4,696
21	Brule County, SD	July 5, 2020 22:15	July 6, 2020 03:00	4h 45m	2,116	5,158
22	Brule County, SD	August 31, 2020 13:00	August 31, 2020 14:30	1h 30m	2,114	2,643
23	Pennington County, SD	May 11, 2020 14:15	May 19, 2020 22:00	8d 7h	2,090	7,555
24	Davison County, SD	June 25, 2020 23:00	June 26, 2020 01:45	2h 45m	1,945	2,741
25	Minnehaha County, SD	February 1, 2020 14:15	February 17, 2020 21:45	16d 7h	1,899	205K

EAGLE-I tracked about 79% of South Dakota's electricity customers in 2020; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.

South Dakota by year:2025 2024 2023 2022 2021 2019 2018 2017 2016 2015

Other states in 2020:LA ME OK IA AL MS NJ NC

Part of the 2020 US Power Outage Report.

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