County annual report · FIPS 30007
2023 Broadwater County, MT Power Outage Report
In 2023, customers in Broadwater County, MT went without power for an average of 2.2 hours, a total of 3,099 customer-hours (Montana average 1.8 hours). That ranks 23rd worst of 50 Montana counties and 2219th of 2,977 nationally.
Compared with MT, the US and 2022
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Broadwater County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 24, 2023 21:45 | July 25, 2023 01:30 | 3h 45m | 186 | 387 |
| 2 | August 28, 2023 23:45 | August 29, 2023 04:15 | 4h 30m | 145 | 567 |
| 3 | April 8, 2023 12:15 | April 8, 2023 15:15 | 3h | 130 | 227 |
| 4 | August 18, 2023 06:15 | August 18, 2023 09:30 | 3h 15m | 106 | 345 |
| 5 | February 21, 2023 11:45 | February 21, 2023 15:30 | 3h 45m | 59 | 164 |
| 6 | September 22, 2023 09:00 | September 22, 2023 12:45 | 3h 45m | 57 | 214 |
| 7 | September 10, 2023 17:00 | September 10, 2023 21:00 | 4h | 54 | 147 |
| 8 | April 14, 2023 17:45 | April 15, 2023 00:15 | 6h 30m | 38 | 247 |
| 9 | August 4, 2023 15:45 | August 4, 2023 18:00 | 2h 15m | 37 | 82 |
| 10 | November 7, 2023 20:00 | November 7, 2023 23:15 | 3h 15m | 27 | 74 |
Outage episodes by size in 2023: 4 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 2023, 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) | 2023 | 1.7 hrs | 0.93 | 1.7 hrs | 0.93 |
| 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 2023; 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, 2023, 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/2023/montana/broadwater-county