County annual report · FIPS 30107
2020 Wheatland County, MT Power Outage Report
In 2020, customers in Wheatland County, MT went without power for an average of 57.0 hours, a total of 40K customer-hours (Montana average 5.6 hours). That ranks 1st worst of 50 Montana counties and 139th of 3,019 nationally.
Compared with MT, the US
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Wheatland County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 12, 2020 22:00 | July 13, 2020 00:45 | 2h 45m | 1,080 | 1,621 |
| 2 | June 12, 2020 05:00 | June 12, 2020 10:15 | 5h 15m | 1,079 | 5,665 |
| 3 | July 14, 2020 06:00 | July 14, 2020 10:00 | 4h | 1,079 | 4,316 |
| 4 | April 19, 2020 03:45 | April 19, 2020 15:30 | 11h 45m | 570 | 3,634 |
| 5 | September 2, 2020 23:00 | September 3, 2020 16:45 | 17h 45m | 529 | 3,101 |
| 6 | July 4, 2020 00:00 | July 4, 2020 01:15 | 1h 15m | 384 | 480 |
| 7 | June 14, 2020 01:00 | June 15, 2020 22:45 | 1d 21h | 334 | 14K |
| 8 | June 27, 2020 21:30 | June 27, 2020 22:45 | 1h 15m | 327 | 409 |
| 9 | August 26, 2020 01:15 | August 26, 2020 08:45 | 7h 30m | 304 | 1,529 |
| 10 | February 1, 2020 20:00 | February 1, 2020 22:45 | 2h 45m | 285 | 784 |
Outage episodes by size in 2020: 18 reached 100+ customers, 3 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 2020, 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) | 2020 | 2.8 hrs | 1.13 | 2.0 hrs | 1.02 |
| 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 76% of Montana's customers in 2020; 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, 2020, 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/2020/montana/wheatland-county