County annual report · FIPS 30005
2024 Blaine County, MT Power Outage Report
In 2024, customers in Blaine County, MT went without power for an average of 9.6 hours, a total of 26K customer-hours (Montana average 8.5 hours). That ranks 13th worst of 51 Montana counties and 965th of 2,990 nationally.
Compared with MT, the US and 2023
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Blaine County, 2024
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 29, 2024 04:45 | August 29, 2024 16:15 | 11h 30m | 1,479 | 9,127 |
| 2 | May 7, 2024 10:30 | May 7, 2024 18:45 | 8h 15m | 1,257 | 4,399 |
| 3 | August 8, 2024 22:00 | August 9, 2024 00:00 | 2h | 1,255 | 2,510 |
| 4 | December 19, 2024 02:00 | December 19, 2024 11:30 | 9h 30m | 501 | 966 |
| 5 | November 30, 2024 05:30 | November 30, 2024 16:45 | 11h 15m | 362 | 2,378 |
| 6 | January 3, 2024 13:30 | January 3, 2024 18:00 | 4h 30m | 361 | 982 |
| 7 | January 23, 2024 01:45 | January 23, 2024 10:15 | 8h 30m | 361 | 1,196 |
| 8 | January 5, 2024 12:15 | January 5, 2024 22:30 | 10h 15m | 173 | 705 |
| 9 | October 5, 2024 03:00 | October 5, 2024 18:15 | 15h 15m | 99 | 977 |
| 10 | May 10, 2024 15:30 | May 10, 2024 17:30 | 2h | 89 | 178 |
Outage episodes by size in 2024: 8 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 Blaine County reported on EIA Form 861 for 2024, 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Fergus Electric Coop, Inc | - | - | - | - | - |
| Hill County Electric Coop, Inc | - | - | - | - | - |
| Big Flat 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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,740 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. Blaine County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Blaine County, MT annual power outage report, 2024, 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/2024/montana/blaine-county