County annual report · FIPS 30065
2022 Musselshell County, MT Power Outage Report
In 2022, customers in Musselshell County, MT went without power for an average of 3.0 hours, a total of 7,121 customer-hours (Montana average 3.5 hours). That ranks 29th worst of 50 Montana counties and 1951st 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 Musselshell 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 | October 25, 2022 16:00 | October 25, 2022 17:15 | 1h 15m | 507 | 634 |
| 2 | November 9, 2022 10:00 | November 9, 2022 13:00 | 3h | 507 | 642 |
| 3 | July 24, 2022 00:15 | July 24, 2022 04:45 | 4h 30m | 448 | 1,931 |
| 4 | January 5, 2022 15:15 | January 5, 2022 22:30 | 7h 15m | 356 | 563 |
| 5 | January 11, 2022 19:45 | January 11, 2022 23:00 | 3h 15m | 356 | 1,157 |
| 6 | January 21, 2022 02:00 | January 21, 2022 09:30 | 7h 30m | 81 | 608 |
| 7 | June 6, 2022 11:15 | June 6, 2022 13:00 | 1h 45m | 81 | 142 |
| 8 | January 17, 2022 14:45 | January 17, 2022 17:15 | 2h 30m | 45 | 113 |
| 9 | November 11, 2022 02:15 | November 11, 2022 07:30 | 5h 15m | 44 | 158 |
| 10 | June 7, 2022 15:15 | June 8, 2022 00:45 | 9h 30m | 43 | 375 |
Outage episodes by size in 2022: 5 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 Musselshell 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 |
| Fergus Electric Coop, Inc | - | - | - | - | - |
| Yellowstone Valley Elec Co-op | - | - | - | - | - |
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 ÷ 2,362 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. Musselshell County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Musselshell 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/musselshell-county