County annual report · FIPS 30007
2020 Broadwater County, MT Power Outage Report
In 2020, customers in Broadwater County, MT went without power for an average of 5.0 hours, a total of 7,103 customer-hours (Montana average 5.6 hours). That ranks 25th worst of 50 Montana counties and 1390th of 3,019 nationally.
Compared with MT, the US and 2019
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Broadwater County, 2020
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 1, 2020 01:45 | August 1, 2020 03:45 | 2h | 208 | 415 |
| 2 | August 1, 2020 23:15 | August 2, 2020 01:00 | 1h 45m | 207 | 362 |
| 3 | September 9, 2020 03:30 | September 9, 2020 05:00 | 1h 30m | 157 | 236 |
| 4 | July 8, 2020 17:30 | July 8, 2020 22:00 | 4h 30m | 147 | 259 |
| 5 | October 11, 2020 22:45 | October 12, 2020 06:00 | 7h 15m | 130 | 943 |
| 6 | December 22, 2020 16:15 | December 22, 2020 19:00 | 2h 45m | 107 | 294 |
| 7 | November 12, 2020 16:16 | November 12, 2020 21:45 | 5h 29m | 100 | 528 |
| 8 | November 19, 2020 17:00 | November 21, 2020 02:30 | 1d 9h | 100 | 312 |
| 9 | November 30, 2020 16:15 | November 30, 2020 19:30 | 3h 15m | 100 | 325 |
| 10 | April 30, 2020 23:00 | May 2, 2020 00:00 | 1d 1h | 90 | 167 |
Outage episodes by size in 2020: 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 2020, 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) | 2020 | 2.8 hrs | 1.13 | 2.0 hrs | 1.02 |
| 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 2020; 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, 2020, 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/2020/montana/broadwater-county