County annual report · FIPS 30025
2023 Fallon County, MT Power Outage Report
In 2023, customers in Fallon County, MT went without power for an average of 0.1 hours, a total of 139 customer-hours (Montana average 1.8 hours). That ranks 48th worst of 50 Montana counties and 2928th 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 Fallon County, 2023
The 5 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 20, 2023 22:00 | July 20, 2023 22:15 | 15m | 19 | 5 |
| 2 | June 15, 2023 23:30 | June 16, 2023 06:30 | 7h | 11 | 71 |
| 3 | January 27, 2023 10:30 | January 27, 2023 12:00 | 1h 30m | 8 | 12 |
| 4 | July 18, 2023 18:15 | July 18, 2023 21:00 | 2h 45m | 7 | 19 |
| 5 | July 16, 2023 20:45 | July 17, 2023 02:00 | 5h 15m | 6 | 32 |
Outage episodes by size in 2023: 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 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 |
|---|---|---|---|---|---|
| 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 n/a of Montana's customers in 2023; 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, 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/). https://massoutage.com/reports/2023/montana/fallon-county