County annual report · FIPS 38057
2025 Mercer County, ND Power Outage Report
In 2025, customers in Mercer County, ND went without power for an average of 0.8 hours, a total of 4,903 customer-hours (North Dakota average 3.1 hours). That ranks 40th worst of 52 North Dakota counties and 2813th 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 Mercer 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 30, 2025 21:45 | June 30, 2025 22:00 | 15m | 342 | 86 |
| 2 | May 15, 2025 03:15 | May 15, 2025 13:30 | 10h 15m | 202 | 1,828 |
| 3 | May 2, 2025 19:15 | May 2, 2025 20:45 | 1h 30m | 70 | 104 |
| 4 | February 24, 2025 16:15 | March 3, 2025 06:15 | 6d 14h | 12 | 1,890 |
| 5 | March 3, 2025 07:00 | March 3, 2025 08:30 | 1h 30m | 12 | 12 |
| 6 | March 3, 2025 09:45 | March 3, 2025 10:00 | 15m | 12 | 3 |
| 7 | March 3, 2025 11:30 | March 3, 2025 11:45 | 15m | 12 | 3 |
| 8 | March 3, 2025 13:15 | March 6, 2025 16:15 | 3d 3h | 12 | 898 |
| 9 | October 14, 2025 20:45 | October 14, 2025 21:15 | 30m | 11 | 6 |
| 10 | February 2, 2025 05:15 | February 2, 2025 05:45 | 30m | 8 | 4 |
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 Mercer 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 |
| McKenzie Electric Coop Inc | 2024 | 4.3 hrs | 1.82 | 3.5 hrs | 1.61 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Roughrider Electric Cooperativ | - | - | - | - | - |
| Mor-Gran-Sou Electric Coop Inc | - | - | - | - | - |
| Basin Electric Power Coop | - | - | - | - | - |
| City of Stanton - (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 ÷ 6,015 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. Mercer County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Mercer 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/mercer-county