County annual report · FIPS 30109
2021 Wibaux County, MT Power Outage Report
In 2021, customers in Wibaux County, MT went without power for an average of 2.8 hours, a total of 1,904 customer-hours (Montana average 5.0 hours). That ranks 30th worst of 51 Montana counties and 1919th of 2,974 nationally.
Compared with MT, the US and 2020
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Wibaux County, 2021
The 6 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 21, 2021 05:30 | July 21, 2021 07:00 | 1h 30m | 361 | 529 |
| 2 | July 20, 2021 23:15 | July 21, 2021 02:30 | 3h 15m | 354 | 1,057 |
| 3 | July 8, 2021 23:45 | July 9, 2021 00:00 | 15m | 317 | 79 |
| 4 | August 16, 2021 09:15 | August 16, 2021 12:30 | 3h 15m | 70 | 228 |
| 5 | August 9, 2021 01:00 | August 9, 2021 03:15 | 2h 15m | 5 | 9 |
| 6 | September 1, 2021 23:45 | September 2, 2021 00:15 | 30m | 5 | 3 |
Outage episodes by size in 2021: 3 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 Wibaux County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| McKenzie Electric Coop Inc | 2021 | 2.7 hrs | 1.42 | 2.7 hrs | 1.42 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Montana-Dakota Utilities Co | - | - | - | - | - |
| Goldenwest Electric 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 76% of Montana's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 675 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. Wibaux County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Wibaux County, MT annual power outage report, 2021, 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/2021/montana/wibaux-county