County annual report · FIPS 30047
2022 Lake County, MT Power Outage Report
In 2022, customers in Lake County, MT went without power for an average of 3.1 hours, a total of 75K customer-hours (Montana average 3.5 hours). That ranks 28th worst of 50 Montana counties and 1904th 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 Lake 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 | November 2, 2022 12:45 | November 6, 2022 03:15 | 3d 14h | 3,140 | 54K |
| 2 | July 30, 2022 03:45 | July 30, 2022 06:00 | 2h 15m | 3,076 | 2,625 |
| 3 | August 24, 2022 16:00 | August 24, 2022 17:00 | 1h | 3,046 | 2,285 |
| 4 | December 21, 2022 16:15 | December 21, 2022 17:30 | 1h 15m | 1,764 | 1,413 |
| 5 | May 5, 2022 17:15 | May 5, 2022 17:30 | 15m | 1,717 | 429 |
| 6 | February 28, 2022 17:00 | February 28, 2022 17:30 | 30m | 1,670 | 835 |
| 7 | February 28, 2022 22:45 | February 28, 2022 23:00 | 15m | 1,669 | 417 |
| 8 | December 22, 2022 09:30 | December 23, 2022 05:00 | 19h 30m | 1,133 | 6,716 |
| 9 | March 15, 2022 23:45 | March 16, 2022 01:45 | 2h | 1,081 | 2,026 |
| 10 | August 26, 2022 21:30 | August 27, 2022 01:15 | 3h 45m | 668 | 1,443 |
Outage episodes by size in 2022: 16 reached 100+ customers, 9 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 Lake 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 |
|---|---|---|---|---|---|
| Missoula Electric Coop, Inc | 2022 | 4.3 hrs | 1.44 | 4.3 hrs | 1.44 |
| Flathead Electric Coop Inc | 2022 | 11.5 hrs | 2.72 | 3.7 hrs | 1.82 |
| USBIA-Mission Valley Power | - | - | - | - | - |
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 ÷ 24,041 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. Lake County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lake 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/lake-county