County annual report · FIPS 46071
2018 Jackson County, SD Power Outage Report
In 2018, customers in Jackson County, SD went without power for an average of 2.2 hours, a total of 1,996 customer-hours (South Dakota average 1.1 hours). That ranks 2nd worst of 30 South Dakota counties and 1787th of 2,798 nationally.
Compared with SD, the US
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Jackson County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 5, 2018 18:30 | March 6, 2018 01:00 | 6h 30m | 79 | 463 |
| 2 | March 6, 2018 03:15 | March 6, 2018 17:00 | 13h 45m | 74 | 787 |
| 3 | September 19, 2018 14:30 | September 20, 2018 19:30 | 1d 5h | 5 | 129 |
| 4 | September 21, 2018 14:30 | September 25, 2018 16:30 | 4d 2h | 5 | 394 |
| 5 | December 4, 2018 17:00 | December 4, 2018 22:30 | 5h 30m | 5 | 24 |
| 6 | August 3, 2018 00:15 | August 3, 2018 02:15 | 2h | 4 | 8 |
| 7 | August 17, 2018 14:00 | August 17, 2018 22:00 | 8h | 4 | 32 |
| 8 | April 9, 2018 19:45 | April 9, 2018 22:30 | 2h 45m | 3 | 8 |
| 9 | March 3, 2018 17:30 | March 3, 2018 19:30 | 2h | 2 | 4 |
| 10 | August 11, 2018 20:30 | August 12, 2018 01:00 | 4h 30m | 2 | 5 |
Outage episodes by size in 2018: 0 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 2018, 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| LaCreek Electric Assn, Inc | - | - | - | - | - |
| West River 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 46% of South Dakota's customers in 2018; 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, 2018, 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/2018/south-dakota/jackson-county