County annual report · FIPS 30007
2022 Broadwater County, MT Power Outage Report
In 2022, customers in Broadwater County, MT went without power for an average of 9.7 hours, a total of 14K customer-hours (Montana average 3.5 hours). That ranks 10th worst of 50 Montana counties and 752nd 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 Broadwater 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 | September 28, 2022 19:30 | September 29, 2022 03:45 | 8h 15m | 1,455 | 6,088 |
| 2 | August 29, 2022 23:00 | August 30, 2022 00:45 | 1h 45m | 1,356 | 1,489 |
| 3 | December 1, 2022 15:15 | December 1, 2022 17:15 | 2h | 806 | 1,204 |
| 4 | August 2, 2022 03:30 | August 2, 2022 05:30 | 2h | 304 | 571 |
| 5 | August 5, 2022 14:30 | August 5, 2022 15:45 | 1h 15m | 268 | 335 |
| 6 | July 16, 2022 23:45 | July 17, 2022 01:45 | 2h | 202 | 404 |
| 7 | November 5, 2022 14:30 | November 6, 2022 00:30 | 10h | 118 | 817 |
| 8 | May 28, 2022 14:45 | May 28, 2022 15:45 | 1h | 99 | 75 |
| 9 | May 30, 2022 10:30 | May 30, 2022 12:30 | 2h | 93 | 186 |
| 10 | October 25, 2022 17:00 | October 25, 2022 18:00 | 1h | 89 | 89 |
Outage episodes by size in 2022: 7 reached 100+ customers, 2 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 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 |
| 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 76% of Montana's customers in 2022; 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, 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/broadwater-county