County annual report · FIPS 30079
2023 Prairie County, MT Power Outage Report
In 2023, customers in Prairie County, MT went without power for an average of 2.3 hours, a total of 1,725 customer-hours (Montana average 1.8 hours). That ranks 21st worst of 50 Montana counties and 2193rd 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 Prairie County, 2023
The 9 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 20, 2023 07:30 | June 20, 2023 10:30 | 3h | 357 | 1,028 |
| 2 | May 23, 2023 10:30 | May 23, 2023 13:00 | 2h 30m | 109 | 271 |
| 3 | August 23, 2023 05:15 | August 23, 2023 07:00 | 1h 45m | 108 | 160 |
| 4 | October 25, 2023 17:15 | October 25, 2023 17:30 | 15m | 108 | 27 |
| 5 | April 19, 2023 14:30 | April 19, 2023 14:45 | 15m | 98 | 25 |
| 6 | October 23, 2023 14:30 | October 23, 2023 14:45 | 15m | 72 | 18 |
| 7 | April 25, 2023 15:00 | April 25, 2023 21:15 | 6h 15m | 12 | 58 |
| 8 | March 23, 2023 16:00 | March 23, 2023 18:00 | 2h | 7 | 13 |
| 9 | January 24, 2023 08:15 | January 25, 2023 09:15 | 1d 1h | 5 | 125 |
Outage episodes by size in 2023: 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 Prairie 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 | - | - | - | - | - |
| McCone Electric Coop Inc | - | - | - | - | - |
| Tongue River 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 ÷ 758 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. Prairie County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Prairie 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/prairie-county