County annual report · FIPS 46049
2025 Faulk County, SD Power Outage Report
In 2025, customers in Faulk County, SD went without power for an average of 3.1 hours, a total of 3,668 customer-hours (South Dakota average 6.5 hours). That ranks 27th worst of 65 South Dakota counties and 2014th of 3,000 nationally.
Compared with SD, the US and 2024
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Faulk County, 2025
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 24, 2025 11:15 | June 24, 2025 16:45 | 5h 30m | 447 | 1,087 |
| 2 | May 6, 2025 09:15 | May 6, 2025 13:30 | 4h 15m | 428 | 1,716 |
| 3 | June 12, 2025 18:30 | June 13, 2025 00:45 | 6h 15m | 90 | 156 |
| 4 | June 8, 2025 15:30 | June 8, 2025 17:30 | 2h | 65 | 130 |
| 5 | June 23, 2025 19:30 | June 23, 2025 22:30 | 3h | 52 | 29 |
| 6 | August 2, 2025 04:45 | August 2, 2025 07:00 | 2h 15m | 35 | 79 |
| 7 | September 23, 2025 20:30 | September 23, 2025 21:00 | 30m | 34 | 17 |
| 8 | October 16, 2025 08:30 | October 16, 2025 11:45 | 3h 15m | 33 | 106 |
| 9 | December 18, 2025 12:15 | December 18, 2025 13:30 | 1h 15m | 32 | 40 |
| 10 | August 12, 2025 21:00 | August 12, 2025 21:45 | 45m | 25 | 19 |
Outage episodes by size in 2025: 2 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 Faulk County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| Montana-Dakota Utilities Co | 2024 | 2.9 hrs | 1.26 | 2.1 hrs | 1.10 |
| NorthWestern Energy - (SD) | 2024 | 76 min | 0.70 | 66 min | 0.65 |
| Northern Electric Coop, Inc | 2024 | 50 min | 0.67 | 50 min | 0.67 |
| FEM Electric Assn, Inc | 2018 | 3.8 hrs | 2.21 | 3.8 hrs | 2.21 |
| Dakota Energy 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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,168 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. Faulk County has data for 2018–2025.
Cite this report
MassOutage (massoutage.com), Faulk County, SD annual power outage report, 2025, 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/2025/south-dakota/faulk-county