County annual report · FIPS 30045
2023 Judith Basin County, MT Power Outage Report
In 2023, customers in Judith Basin County, MT went without power for an average of 3.6 hours, a total of 3,596 customer-hours (Montana average 1.8 hours). That ranks 14th worst of 50 Montana counties and 1762nd 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 Judith Basin 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 | September 3, 2023 22:30 | September 4, 2023 02:30 | 4h | 496 | 873 |
| 2 | November 7, 2023 17:30 | November 8, 2023 01:45 | 8h 15m | 223 | 501 |
| 3 | February 17, 2023 13:30 | February 17, 2023 16:45 | 3h 15m | 175 | 256 |
| 4 | April 27, 2023 16:45 | April 28, 2023 00:30 | 7h 45m | 94 | 405 |
| 5 | April 27, 2023 14:00 | April 27, 2023 15:30 | 1h 30m | 76 | 88 |
| 6 | May 8, 2023 03:30 | May 8, 2023 06:15 | 2h 45m | 73 | 148 |
| 7 | October 5, 2023 18:30 | October 5, 2023 22:00 | 3h 30m | 55 | 118 |
| 8 | January 3, 2023 20:00 | January 3, 2023 23:15 | 3h 15m | 24 | 78 |
| 9 | October 4, 2023 14:45 | October 4, 2023 23:45 | 9h | 21 | 189 |
| 10 | April 28, 2023 23:45 | April 29, 2023 23:15 | 23h 30m | 17 | 360 |
Outage episodes by size in 2023: 3 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 Judith Basin 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 |
| Fergus Electric Coop, Inc | - | - | - | - | - |
| Sun River 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 ÷ 1,006 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. Judith Basin County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Judith Basin 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/judith-basin-county