County annual report · FIPS 30107
2025 Wheatland County, MT Power Outage Report
In 2025, customers in Wheatland County, MT went without power for an average of 10.7 hours, a total of 7,549 customer-hours (Montana average 6.8 hours). That ranks 17th worst of 51 Montana counties and 749th of 3,000 nationally.
Compared with MT, the US and 2024
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Wheatland County, 2025
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 10, 2025 11:30 | August 10, 2025 11:45 | 15m | 286 | 72 |
| 2 | December 17, 2025 16:45 | December 19, 2025 19:45 | 2d 3h | 194 | 3,393 |
| 3 | September 16, 2025 19:00 | September 16, 2025 22:30 | 3h 30m | 170 | 555 |
| 4 | February 3, 2025 03:00 | February 4, 2025 00:45 | 21h 45m | 119 | 798 |
| 5 | June 13, 2025 21:30 | June 14, 2025 05:45 | 8h 15m | 89 | 355 |
| 6 | September 9, 2025 02:15 | September 9, 2025 04:00 | 1h 45m | 81 | 142 |
| 7 | April 2, 2025 20:15 | April 3, 2025 03:00 | 6h 45m | 75 | 413 |
| 8 | June 3, 2025 20:15 | June 4, 2025 04:45 | 8h 30m | 65 | 522 |
| 9 | January 20, 2025 16:45 | January 20, 2025 19:45 | 3h | 50 | 146 |
| 10 | July 26, 2025 22:45 | July 27, 2025 03:00 | 4h 15m | 43 | 155 |
Outage episodes by size in 2025: 4 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 Wheatland County reported on EIA Form 861 for 2025, 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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 705 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. Wheatland County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Wheatland County, MT annual power outage report, 2025, 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/2025/montana/wheatland-county