County annual report · FIPS 30081
2022 Ravalli County, MT Power Outage Report
In 2022, customers in Ravalli County, MT went without power for an average of 1.4 hours, a total of 35K customer-hours (Montana average 3.5 hours). That ranks 43rd worst of 50 Montana counties and 2538th 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 Ravalli 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 | July 10, 2022 02:00 | July 10, 2022 04:00 | 2h | 1,689 | 3,376 |
| 2 | September 7, 2022 21:45 | September 8, 2022 08:15 | 10h 30m | 1,638 | 5,914 |
| 3 | November 1, 2022 12:15 | November 1, 2022 14:30 | 2h 15m | 1,324 | 2,979 |
| 4 | August 12, 2022 04:00 | August 12, 2022 07:15 | 3h 15m | 806 | 2,123 |
| 5 | October 22, 2022 16:00 | October 22, 2022 18:00 | 2h | 730 | 1,460 |
| 6 | September 14, 2022 05:15 | September 14, 2022 06:30 | 1h 15m | 602 | 752 |
| 7 | July 15, 2022 16:30 | July 15, 2022 21:45 | 5h 15m | 511 | 1,098 |
| 8 | April 4, 2022 21:45 | April 5, 2022 00:00 | 2h 15m | 495 | 1,114 |
| 9 | January 1, 2022 06:45 | January 1, 2022 11:15 | 4h 30m | 464 | 1,492 |
| 10 | March 1, 2022 23:00 | March 2, 2022 02:00 | 3h | 449 | 977 |
Outage episodes by size in 2022: 23 reached 100+ customers, 3 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 Ravalli 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 |
| Missoula Electric Coop, Inc | 2022 | 4.3 hrs | 1.44 | 4.3 hrs | 1.44 |
| Ravalli County Elec Coop, Inc | 2018 | 4.2 hrs | 1.53 | 2.5 hrs | 1.41 |
| NorthWestern Energy | - | - | - | - | - |
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 ÷ 25,043 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. Ravalli County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Ravalli 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/ravalli-county