County annual report · FIPS 38105
2025 Williams County, ND Power Outage Report
In 2025, customers in Williams County, ND went without power for an average of 4.5 hours, a total of 69K customer-hours (North Dakota average 3.1 hours). That ranks 18th worst of 52 North Dakota counties and 1640th 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 Williams 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 | November 26, 2025 21:15 | November 30, 2025 09:15 | 3d 12h | 2,124 | 3,435 |
| 2 | August 20, 2025 22:00 | August 30, 2025 23:30 | 10d 1h | 1,924 | 20K |
| 3 | July 23, 2025 16:00 | August 7, 2025 12:30 | 14d 20h | 1,915 | 24K |
| 4 | June 27, 2025 02:45 | July 7, 2025 02:45 | 10d | 1,493 | 10K |
| 5 | April 28, 2025 08:30 | April 28, 2025 15:45 | 7h 15m | 1,427 | 1,243 |
| 6 | August 8, 2025 01:45 | August 9, 2025 14:15 | 1d 12h | 835 | 2,515 |
| 7 | May 10, 2025 15:45 | May 10, 2025 16:00 | 15m | 157 | 39 |
| 8 | May 30, 2025 16:45 | May 30, 2025 18:00 | 1h 15m | 157 | 150 |
| 9 | April 25, 2025 05:30 | April 25, 2025 19:45 | 14h 15m | 111 | 160 |
| 10 | November 17, 2025 19:45 | November 17, 2025 20:30 | 45m | 107 | 80 |
Outage episodes by size in 2025: 10 reached 100+ customers, 5 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 Williams 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 |
| Mountrail-Williams Elec Coop | 2024 | 4.7 hrs | 1.29 | 2.4 hrs | 1.12 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Burke-Divide Electric Coop Inc | - | - | - | - | - |
| Sheridan Electric Coop, Inc | - | - | - | - | - |
| Lower Yellowstone R E A, 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 North Dakota's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 15,516 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. Williams County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Williams 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/williams-county