County annual report · FIPS 30025
2019 Fallon County, MT Power Outage Report
In 2019, customers in Fallon County, MT went without power for an average of 0.1 hours, a total of 239 customer-hours (Montana average 0.6 hours). That ranks 20th worst of 38 Montana counties and 2818th of 2,945 nationally.
Compared with MT, the US and 2018
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Fallon County, 2019
The 6 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 14, 2019 09:00 | April 14, 2019 14:00 | 5h | 54 | 129 |
| 2 | August 12, 2019 05:15 | August 12, 2019 06:15 | 1h | 54 | 22 |
| 3 | September 17, 2019 23:45 | September 18, 2019 01:30 | 1h 45m | 40 | 22 |
| 4 | July 22, 2019 13:30 | July 22, 2019 14:45 | 1h 15m | 39 | 31 |
| 5 | December 30, 2019 06:30 | December 30, 2019 11:00 | 4h 30m | 8 | 29 |
| 6 | August 16, 2019 15:15 | August 16, 2019 16:30 | 1h 15m | 6 | 7 |
Outage episodes by size in 2019: 0 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 Fallon County reported on EIA Form 861 for 2019, 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 |
|---|---|---|---|---|---|
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Montana-Dakota Utilities Co | - | - | - | - | - |
| Tongue River Electric Coop Inc | - | - | - | - | - |
| Goldenwest Electric Coop, Inc | - | - | - | - | - |
| Southeast 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 75% of Montana's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,280 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. Fallon County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Fallon County, MT annual power outage report, 2019, 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/). https://massoutage.com/reports/2019/montana/fallon-county