County annual report · FIPS 38063
2025 Nelson County, ND Power Outage Report
In 2025, customers in Nelson County, ND went without power for an average of 2.4 hours, a total of 2,990 customer-hours (North Dakota average 3.1 hours). That ranks 23rd worst of 52 North Dakota counties and 2261st 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 Nelson 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 4, 2025 09:15 | June 4, 2025 11:15 | 2h | 226 | 452 |
| 2 | July 16, 2025 08:45 | July 16, 2025 12:45 | 4h | 226 | 904 |
| 3 | May 15, 2025 02:45 | May 15, 2025 04:00 | 1h 15m | 225 | 233 |
| 4 | February 25, 2025 15:00 | February 25, 2025 16:00 | 1h | 204 | 165 |
| 5 | June 21, 2025 04:30 | June 21, 2025 12:15 | 7h 45m | 157 | 822 |
| 6 | June 22, 2025 12:45 | June 22, 2025 16:00 | 3h 15m | 78 | 140 |
| 7 | October 15, 2025 14:30 | October 15, 2025 16:00 | 1h 30m | 15 | 21 |
| 8 | September 25, 2025 06:45 | September 25, 2025 10:00 | 3h 15m | 11 | 36 |
| 9 | June 12, 2025 03:15 | June 12, 2025 03:30 | 15m | 10 | 3 |
| 10 | June 17, 2025 00:30 | June 17, 2025 00:45 | 15m | 10 | 3 |
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 Nelson 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Lakota - (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 ÷ 1,239 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. Nelson County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Nelson 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/nelson-county