County annual report · FIPS 30061
2022 Mineral County, MT Power Outage Report
In 2022, customers in Mineral County, MT went without power for an average of 12.0 hours, a total of 29K customer-hours (Montana average 3.5 hours). That ranks 5th worst of 50 Montana counties and 580th of 2,976 nationally.
Compared with MT, the US and 2021
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Mineral County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 22, 2022 16:00 | February 22, 2022 18:45 | 2h 45m | 1,867 | 4,741 |
| 2 | September 4, 2022 08:15 | September 4, 2022 09:30 | 1h 15m | 683 | 854 |
| 3 | February 17, 2022 06:15 | February 17, 2022 08:30 | 2h 15m | 675 | 1,519 |
| 4 | April 15, 2022 05:15 | April 15, 2022 07:45 | 2h 30m | 675 | 1,688 |
| 5 | December 22, 2022 07:45 | December 22, 2022 14:00 | 6h 15m | 466 | 1,123 |
| 6 | January 4, 2022 07:15 | January 4, 2022 08:45 | 1h 30m | 386 | 566 |
| 7 | January 6, 2022 13:00 | January 10, 2022 18:45 | 4d 5h | 386 | 15K |
| 8 | November 30, 2022 20:15 | November 30, 2022 21:30 | 1h 15m | 305 | 306 |
| 9 | September 4, 2022 00:45 | September 4, 2022 03:45 | 3h | 235 | 347 |
| 10 | July 15, 2022 05:00 | July 15, 2022 07:45 | 2h 45m | 226 | 622 |
Outage episodes by size in 2022: 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 Mineral County reported on EIA Form 861 for 2022, 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 |
|---|---|---|---|---|---|
| NorthWestern Energy LLC - (MT) | 2022 | 2.2 hrs | 1.14 | 2.0 hrs | 1.09 |
| Missoula Electric Coop, Inc | 2022 | 4.3 hrs | 1.44 | 4.3 hrs | 1.44 |
| Bonneville Power Administration | - | - | - | - | - |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,455 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. Mineral County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Mineral County, MT annual power outage report, 2022, 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/2022/montana/mineral-county