County annual report · FIPS 46019
2024 Butte County, SD Power Outage Report
In 2024, customers in Butte County, SD went without power for an average of 3.9 hours, a total of 18K customer-hours (South Dakota average 2.3 hours). That ranks 13th worst of 65 South Dakota counties and 1867th of 2,990 nationally.
Compared with SD, the US and 2023
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Butte County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 7, 2024 16:15 | May 7, 2024 20:45 | 4h 30m | 585 | 694 |
| 2 | June 25, 2024 18:15 | June 27, 2024 18:00 | 1d 23h | 258 | 5,960 |
| 3 | May 8, 2024 15:15 | May 15, 2024 21:45 | 7d 6h | 184 | 4,747 |
| 4 | July 14, 2024 04:30 | July 17, 2024 21:45 | 3d 17h | 175 | 2,471 |
| 5 | April 23, 2024 14:15 | April 23, 2024 17:45 | 3h 30m | 173 | 600 |
| 6 | May 6, 2024 19:30 | May 6, 2024 23:15 | 3h 45m | 171 | 50 |
| 7 | May 21, 2024 15:15 | May 21, 2024 20:45 | 5h 30m | 169 | 930 |
| 8 | September 17, 2024 15:45 | September 17, 2024 18:30 | 2h 45m | 155 | 426 |
| 9 | August 20, 2024 02:30 | August 23, 2024 15:00 | 3d 12h | 98 | 439 |
| 10 | November 19, 2024 19:00 | November 19, 2024 21:45 | 2h 45m | 89 | 91 |
Outage episodes by size in 2024: 8 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 Butte County reported on EIA Form 861 for 2024, 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. | 2024 | 40 min | 0.70 | 40 min | 0.70 |
| 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 n/a of South Dakota's customers in 2024; 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, 2024, 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/2024/south-dakota/butte-county