County annual report · FIPS 30037
2024 Golden Valley County, MT Power Outage Report
In 2024, customers in Golden Valley County, MT went without power for an average of 9.9 hours, a total of 3,125 customer-hours (Montana average 8.5 hours). That ranks 12th worst of 51 Montana counties and 935th of 2,990 nationally.
Compared with MT, the US and 2023
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Golden Valley County, 2024
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 5, 2024 02:30 | August 5, 2024 04:00 | 1h 30m | 523 | 656 |
| 2 | July 12, 2024 03:30 | July 12, 2024 08:45 | 5h 15m | 508 | 646 |
| 3 | September 13, 2024 01:00 | September 13, 2024 04:30 | 3h 30m | 103 | 333 |
| 4 | May 8, 2024 01:15 | May 8, 2024 08:00 | 6h 45m | 89 | 199 |
| 5 | May 18, 2024 20:45 | May 19, 2024 04:15 | 7h 30m | 58 | 207 |
| 6 | June 2, 2024 12:15 | June 2, 2024 16:45 | 4h 30m | 58 | 261 |
| 7 | May 22, 2024 21:00 | May 22, 2024 22:00 | 1h | 52 | 52 |
| 8 | July 17, 2024 01:15 | July 17, 2024 10:30 | 9h 15m | 31 | 243 |
| 9 | November 16, 2024 06:45 | November 16, 2024 09:15 | 2h 30m | 15 | 38 |
| 10 | July 18, 2024 02:15 | July 19, 2024 01:15 | 23h | 14 | 116 |
Outage episodes by size in 2024: 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 Golden Valley County reported on EIA Form 861 for 2024, 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) | 2024 | 3.9 hrs | 1.30 | 2.0 hrs | 0.95 |
| Fergus 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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 316 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. Golden Valley County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Golden Valley County, MT annual power outage report, 2024, 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/2024/montana/golden-valley-county