County annual report · FIPS 38031
2025 Foster County, ND Power Outage Report
In 2025, customers in Foster County, ND went without power for an average of 5.9 hours, a total of 7,857 customer-hours (North Dakota average 3.1 hours). That ranks 15th worst of 52 North Dakota counties and 1294th of 3,000 nationally.
Compared with ND, the US and 2024
Coverage line is EAGLE-I's share of North Dakota customers tracked each year.
Biggest outages in Foster 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 21, 2025 03:45 | June 23, 2025 04:15 | 2d | 659 | 3,604 |
| 2 | August 8, 2025 07:30 | August 8, 2025 14:15 | 6h 45m | 492 | 1,360 |
| 3 | July 10, 2025 03:45 | July 10, 2025 06:15 | 2h 30m | 491 | 862 |
| 4 | September 22, 2025 03:00 | September 22, 2025 06:00 | 3h | 350 | 875 |
| 5 | July 16, 2025 13:15 | July 16, 2025 16:30 | 3h 15m | 192 | 153 |
| 6 | July 29, 2025 07:45 | July 29, 2025 09:15 | 1h 30m | 49 | 38 |
| 7 | October 2, 2025 14:00 | October 2, 2025 14:45 | 45m | 49 | 37 |
| 8 | June 23, 2025 15:30 | June 25, 2025 01:00 | 1d 9h | 22 | 491 |
| 9 | August 16, 2025 15:30 | August 16, 2025 16:00 | 30m | 16 | 8 |
| 10 | June 3, 2025 18:30 | June 3, 2025 21:00 | 2h 30m | 15 | 20 |
Outage episodes by size in 2025: 5 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 Foster 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 |
|---|---|---|---|---|---|
| Otter Tail Power Co | 2024 | 2.6 hrs | 1.37 | 1.9 hrs | 1.09 |
| Northern Plains Electric Coop | 2024 | 4.4 hrs | 1.90 | 4.4 hrs | 1.90 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
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 North Dakota's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,325 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. Foster County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Foster County, ND 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/north-dakota/foster-county