County annual report · FIPS 30007
2025 Broadwater County, MT Power Outage Report
In 2025, customers in Broadwater County, MT went without power for an average of 9.0 hours, a total of 13K customer-hours (Montana average 6.8 hours). That ranks 18th worst of 51 Montana counties and 885th of 3,000 nationally.
Compared with MT, the US and 2024
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Broadwater County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 13, 2025 01:30 | October 13, 2025 03:45 | 2h 15m | 818 | 1,838 |
| 2 | October 13, 2025 07:30 | October 13, 2025 10:00 | 2h 30m | 404 | 935 |
| 3 | November 11, 2025 18:15 | November 11, 2025 23:30 | 5h 15m | 404 | 1,185 |
| 4 | December 17, 2025 18:15 | December 20, 2025 06:45 | 2d 12h | 258 | 3,244 |
| 5 | September 24, 2025 01:15 | September 24, 2025 06:00 | 4h 45m | 155 | 596 |
| 6 | August 20, 2025 14:45 | August 20, 2025 22:45 | 8h | 113 | 409 |
| 7 | February 12, 2025 10:45 | February 12, 2025 21:00 | 10h 15m | 111 | 771 |
| 8 | March 17, 2025 05:15 | March 17, 2025 10:30 | 5h 15m | 111 | 451 |
| 9 | August 5, 2025 08:15 | August 5, 2025 20:45 | 12h 30m | 108 | 512 |
| 10 | April 1, 2025 13:45 | April 1, 2025 20:30 | 6h 45m | 71 | 205 |
Outage episodes by size in 2025: 9 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 Broadwater County reported on EIA Form 861 for 2025, 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 |
| Bonneville Power Administration | - | - | - | - | - |
| 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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,412 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. Broadwater County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Broadwater County, MT annual power outage report, 2025, 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/2025/montana/broadwater-county