County annual report · FIPS 38099
2025 Walsh County, ND Power Outage Report
In 2025, customers in Walsh County, ND went without power for an average of 2.2 hours, a total of 8,143 customer-hours (North Dakota average 3.1 hours). That ranks 25th worst of 52 North Dakota counties and 2347th 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 Walsh 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 22, 2025 15:00 | June 22, 2025 19:15 | 4h 15m | 723 | 2,605 |
| 2 | December 18, 2025 17:45 | December 18, 2025 23:00 | 5h 15m | 716 | 1,652 |
| 3 | July 4, 2025 06:45 | July 4, 2025 11:00 | 4h 15m | 377 | 1,301 |
| 4 | April 2, 2025 13:45 | April 2, 2025 16:15 | 2h 30m | 327 | 458 |
| 5 | June 30, 2025 08:45 | June 30, 2025 12:15 | 3h 30m | 291 | 1,019 |
| 6 | January 17, 2025 16:30 | January 17, 2025 17:15 | 45m | 172 | 115 |
| 7 | September 24, 2025 18:30 | September 24, 2025 20:30 | 2h | 114 | 228 |
| 8 | February 26, 2025 19:15 | February 26, 2025 20:45 | 1h 30m | 106 | 159 |
| 9 | October 27, 2025 17:30 | October 27, 2025 18:45 | 1h 15m | 32 | 40 |
| 10 | June 18, 2025 15:00 | June 18, 2025 16:45 | 1h 45m | 29 | 51 |
Outage episodes by size in 2025: 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 Walsh 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 |
| Nodak Electric Coop Inc | 2024 | 1.8 hrs | 1.07 | 1.8 hrs | 1.02 |
| City of Grafton - (ND) | - | - | - | - | - |
| City of Park River - (ND) | - | - | - | - | - |
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 ÷ 3,713 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. Walsh County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Walsh 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/walsh-county