County annual report · FIPS 46021
2021 Campbell County, SD Power Outage Report
In 2021, customers in Campbell County, SD went without power for an average of 4.0 hours, a total of 2,287 customer-hours (South Dakota average 3.4 hours). That ranks 19th worst of 61 South Dakota counties and 1546th of 2,974 nationally.
Compared with SD, the US and 2020
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Campbell County, 2021
The 6 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 14, 2021 03:30 | October 14, 2021 07:15 | 3h 45m | 587 | 915 |
| 2 | March 12, 2021 20:45 | March 12, 2021 21:15 | 30m | 468 | 127 |
| 3 | January 14, 2021 18:30 | January 15, 2021 00:00 | 5h 30m | 342 | 1,083 |
| 4 | February 3, 2021 19:30 | February 4, 2021 03:15 | 7h 45m | 22 | 142 |
| 5 | March 2, 2021 22:15 | March 2, 2021 22:30 | 15m | 18 | 5 |
| 6 | August 19, 2021 18:45 | August 19, 2021 20:30 | 1h 45m | 9 | 16 |
Outage episodes by size in 2021: 3 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 Campbell County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Montana-Dakota Utilities Co | - | - | - | - | - |
| Cam Wal 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 79% of South Dakota's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 576 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. Campbell County has data for 2018–2025.
Cite this report
MassOutage (massoutage.com), Campbell County, SD annual power outage report, 2021, 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/2021/south-dakota/campbell-county