County annual report · FIPS 30023
2022 Deer Lodge County, MT Power Outage Report
In 2022, customers in Deer Lodge County, MT went without power for an average of 2.2 hours, a total of 15K customer-hours (Montana average 3.5 hours). That ranks 35th worst of 50 Montana counties and 2226th 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 Deer Lodge 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 | April 28, 2022 14:30 | April 29, 2022 01:00 | 10h 30m | 779 | 1,197 |
| 2 | July 18, 2022 22:00 | July 19, 2022 04:00 | 6h | 556 | 963 |
| 3 | November 5, 2022 13:15 | November 5, 2022 18:45 | 5h 30m | 523 | 695 |
| 4 | September 18, 2022 23:30 | September 19, 2022 02:45 | 3h 15m | 355 | 897 |
| 5 | June 6, 2022 21:45 | June 6, 2022 22:15 | 30m | 309 | 154 |
| 6 | August 25, 2022 21:45 | August 26, 2022 05:00 | 7h 15m | 300 | 655 |
| 7 | July 6, 2022 15:15 | July 6, 2022 20:00 | 4h 45m | 296 | 1,124 |
| 8 | June 6, 2022 03:00 | June 6, 2022 07:00 | 4h | 273 | 858 |
| 9 | August 11, 2022 16:00 | August 11, 2022 19:45 | 3h 45m | 267 | 434 |
| 10 | March 23, 2022 15:15 | March 24, 2022 00:15 | 9h | 144 | 470 |
Outage episodes by size in 2022: 11 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 Deer Lodge 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 | - | - | - | - | - |
| NorthWestern Energy | - | - | - | - | - |
| 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 ÷ 6,663 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. Deer Lodge County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Deer Lodge 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/deer-lodge-county