County annual report · FIPS 38019
2025 Cavalier County, ND Power Outage Report
In 2025, customers in Cavalier County, ND went without power for an average of 8.1 hours, a total of 7,527 customer-hours (North Dakota average 3.1 hours). That ranks 10th worst of 52 North Dakota counties and 1002nd 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 Cavalier 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 8, 2025 22:30 | June 9, 2025 00:00 | 1h 30m | 1,290 | 1,754 |
| 2 | July 4, 2025 06:45 | July 5, 2025 02:15 | 19h 30m | 413 | 2,294 |
| 3 | November 5, 2025 18:15 | November 5, 2025 19:30 | 1h 15m | 189 | 236 |
| 4 | September 12, 2025 00:15 | September 12, 2025 03:00 | 2h 45m | 188 | 237 |
| 5 | September 19, 2025 00:45 | September 19, 2025 02:45 | 2h | 172 | 344 |
| 6 | August 8, 2025 07:15 | August 8, 2025 11:45 | 4h 30m | 171 | 770 |
| 7 | July 10, 2025 02:45 | July 10, 2025 05:15 | 2h 30m | 170 | 425 |
| 8 | September 23, 2025 09:45 | September 23, 2025 10:45 | 1h | 145 | 103 |
| 9 | October 14, 2025 16:00 | October 14, 2025 17:45 | 1h 45m | 138 | 50 |
| 10 | July 30, 2025 17:30 | July 30, 2025 18:00 | 30m | 110 | 55 |
Outage episodes by size in 2025: 11 reached 100+ customers, 1 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 Cavalier 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 |
| Cavalier Rural Elec Coop, 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 ÷ 928 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. Cavalier County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Cavalier 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/cavalier-county