County annual report · FIPS 30001
2024 Beaverhead County, MT Power Outage Report
In 2024, customers in Beaverhead County, MT went without power for an average of 1.6 hours, a total of 5,684 customer-hours (Montana average 8.5 hours). That ranks 41st worst of 51 Montana counties and 2540th 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 Beaverhead 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 | February 2, 2024 14:45 | February 2, 2024 22:00 | 7h 15m | 456 | 1,472 |
| 2 | February 28, 2024 20:45 | February 28, 2024 22:30 | 1h 45m | 456 | 798 |
| 3 | September 29, 2024 19:00 | September 29, 2024 23:45 | 4h 45m | 156 | 663 |
| 4 | September 27, 2024 06:00 | September 27, 2024 08:45 | 2h 45m | 155 | 426 |
| 5 | July 14, 2024 16:45 | July 14, 2024 23:30 | 6h 45m | 111 | 383 |
| 6 | July 26, 2024 12:45 | July 26, 2024 14:15 | 1h 30m | 111 | 158 |
| 7 | May 13, 2024 16:30 | May 15, 2024 00:30 | 1d 8h | 87 | 219 |
| 8 | May 23, 2024 00:45 | May 23, 2024 06:00 | 5h 15m | 80 | 336 |
| 9 | June 28, 2024 12:00 | June 28, 2024 13:15 | 1h 15m | 72 | 90 |
| 10 | June 3, 2024 16:15 | June 4, 2024 21:30 | 1d 5h | 71 | 171 |
Outage episodes by size in 2024: 6 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 Beaverhead 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 |
|---|---|---|---|---|---|
| NorthWestern Energy LLC - (MT) | 2024 | 3.9 hrs | 1.30 | 2.0 hrs | 0.95 |
| NorthWestern Energy | - | - | - | - | - |
| Vigilante 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 n/a of Montana's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,612 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. Beaverhead County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Beaverhead 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/beaverhead-county