County annual report · FIPS 46071
2020 Jackson County, SD Power Outage Report
In 2020, customers in Jackson County, SD went without power for an average of 3.8 hours, a total of 3,470 customer-hours (South Dakota average 4.6 hours). That ranks 30th worst of 62 South Dakota counties and 1660th of 3,019 nationally.
Compared with SD, the US and 2019
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Jackson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 7, 2020 02:15 | June 7, 2020 19:00 | 16h 45m | 132 | 624 |
| 2 | August 7, 2020 01:15 | August 7, 2020 05:15 | 4h | 91 | 298 |
| 3 | January 18, 2020 00:30 | January 18, 2020 03:30 | 3h | 70 | 210 |
| 4 | July 27, 2020 12:45 | July 27, 2020 13:15 | 30m | 49 | 25 |
| 5 | August 3, 2020 12:30 | August 3, 2020 20:30 | 8h | 49 | 380 |
| 6 | August 28, 2020 03:00 | August 28, 2020 10:00 | 7h | 45 | 186 |
| 7 | April 15, 2020 16:00 | April 15, 2020 16:15 | 15m | 44 | 11 |
| 8 | June 21, 2020 23:00 | June 21, 2020 23:45 | 45m | 34 | 26 |
| 9 | June 26, 2020 11:45 | June 26, 2020 18:30 | 6h 45m | 34 | 230 |
| 10 | June 29, 2020 04:30 | June 29, 2020 05:15 | 45m | 34 | 26 |
Outage episodes by size in 2020: 1 reached 100+ customers, 0 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 Jackson County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| West Central Electric Coop Inc - (SD) | 2018 | 3.7 hrs | 1.25 | 1.5 hrs | 1.25 |
| West River Electric Assn Inc | 2020 | 28 min | 0.36 | 28 min | 0.36 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| LaCreek Electric Assn, 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 79% of South Dakota's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 915 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. Jackson County has data for 2018–2025.
Cite this report
MassOutage (massoutage.com), Jackson County, SD annual power outage report, 2020, 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2020/south-dakota/jackson-county