County annual report · FIPS 46063
2022 Harding County, SD Power Outage Report
In 2022, customers in Harding County, SD went without power for an average of 88.9 hours, a total of 36K customer-hours (South Dakota average 6.9 hours). That ranks 2nd worst of 63 South Dakota counties and 32nd of 2,976 nationally.
Compared with SD, the US and 2021
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Harding County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 5, 2022 14:00 | July 6, 2022 01:45 | 11h 45m | 1,101 | 1,534 |
| 2 | April 21, 2022 14:15 | April 22, 2022 16:15 | 1d 2h | 500 | 3,691 |
| 3 | December 8, 2022 17:15 | December 8, 2022 22:45 | 5h 30m | 482 | 2,465 |
| 4 | August 15, 2022 18:15 | August 18, 2022 18:00 | 2d 23h | 330 | 842 |
| 5 | December 23, 2022 21:00 | December 24, 2022 00:00 | 3h | 320 | 145 |
| 6 | December 15, 2022 00:45 | December 19, 2022 23:30 | 4d 22h | 290 | 8,943 |
| 7 | August 24, 2022 22:15 | August 24, 2022 23:45 | 1h 30m | 266 | 68 |
| 8 | September 27, 2022 14:45 | September 27, 2022 16:45 | 2h | 266 | 282 |
| 9 | September 14, 2022 13:15 | September 16, 2022 18:00 | 2d 4h | 236 | 8,063 |
| 10 | July 26, 2022 13:45 | July 26, 2022 16:15 | 2h 30m | 148 | 224 |
Outage episodes by size in 2022: 13 reached 100+ customers, 1 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Harding County reported on EIA Form 861 for 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Montana-Dakota Utilities Co | - | - | - | - | - |
| Grand Electric Coop, Inc | - | - | - | - | - |
| Southeast Electric Coop, Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 89% of South Dakota's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 403 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Harding County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Harding County, SD annual power outage report, 2022, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/). https://massoutage.com/reports/2022/south-dakota/harding-county