County annual report · FIPS 30047
2024 Lake County, MT Power Outage Report
In 2024, customers in Lake County, MT went without power for an average of 3.5 hours, a total of 84K customer-hours (Montana average 8.5 hours). That ranks 33rd worst of 51 Montana counties and 1969th of 2,990 nationally.
Compared with MT, the US and 2023
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Lake County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 23, 2024 22:30 | August 27, 2024 23:30 | 4d 1h | 3,412 | 38K |
| 2 | July 30, 2024 20:30 | July 30, 2024 23:30 | 3h | 3,193 | 3,202 |
| 3 | July 2, 2024 19:00 | July 2, 2024 20:30 | 1h 30m | 3,183 | 3,991 |
| 4 | May 20, 2024 17:30 | May 20, 2024 21:45 | 4h 15m | 3,176 | 4,773 |
| 5 | February 22, 2024 07:30 | February 22, 2024 07:45 | 15m | 1,807 | 452 |
| 6 | May 25, 2024 00:00 | May 25, 2024 00:45 | 45m | 1,679 | 420 |
| 7 | October 5, 2024 00:00 | October 5, 2024 18:45 | 18h 45m | 1,272 | 12K |
| 8 | June 5, 2024 02:00 | June 5, 2024 03:30 | 1h 30m | 958 | 568 |
| 9 | March 1, 2024 17:30 | March 1, 2024 17:45 | 15m | 948 | 237 |
| 10 | June 27, 2024 15:30 | June 27, 2024 21:30 | 6h | 481 | 555 |
Outage episodes by size in 2024: 30 reached 100+ customers, 7 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 2024, 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 | 2024 | 26.8 hrs | 3.59 | 8.4 hrs | 2.19 |
| Flathead Electric Coop Inc | 2024 | 9.8 hrs | 2.72 | 3.9 hrs | 1.90 |
| 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 n/a of Montana's customers in 2024; 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, 2024, 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/2024/montana/lake-county