County annual report · FIPS 46019
2022 Butte County, SD Power Outage Report
In 2022, customers in Butte County, SD went without power for an average of 4.7 hours, a total of 22K customer-hours (South Dakota average 6.9 hours). That ranks 29th worst of 63 South Dakota counties and 1488th 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 Butte 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 | March 24, 2022 21:00 | March 24, 2022 23:45 | 2h 45m | 1,177 | 1,692 |
| 2 | June 12, 2022 23:15 | June 13, 2022 11:15 | 12h | 971 | 4,985 |
| 3 | July 15, 2022 04:00 | July 15, 2022 06:45 | 2h 45m | 754 | 1,639 |
| 4 | May 28, 2022 23:00 | May 29, 2022 00:30 | 1h 30m | 750 | 805 |
| 5 | December 15, 2022 03:15 | December 17, 2022 01:45 | 1d 22h | 516 | 1,632 |
| 6 | May 30, 2022 21:15 | May 31, 2022 00:00 | 2h 45m | 507 | 507 |
| 7 | December 23, 2022 01:00 | December 23, 2022 05:00 | 4h | 297 | 528 |
| 8 | June 12, 2022 03:00 | June 12, 2022 07:15 | 4h 15m | 270 | 840 |
| 9 | August 7, 2022 18:45 | August 7, 2022 20:15 | 1h 30m | 212 | 212 |
| 10 | August 7, 2022 10:00 | August 7, 2022 10:45 | 45m | 174 | 131 |
Outage episodes by size in 2022: 19 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 Butte 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 |
|---|---|---|---|---|---|
| Black Hills Power, Inc. | 2022 | 1.8 hrs | 0.88 | 1.6 hrs | 0.85 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Grand Electric Coop, Inc | - | - | - | - | - |
| Butte 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 ÷ 4,717 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. Butte County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Butte 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2022/south-dakota/butte-county