County annual report · FIPS 30085
2024 Roosevelt County, MT Power Outage Report
In 2024, customers in Roosevelt County, MT went without power for an average of 0.9 hours, a total of 6,255 customer-hours (Montana average 8.5 hours). That ranks 47th worst of 51 Montana counties and 2761st 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 Roosevelt 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 | September 18, 2024 05:00 | September 18, 2024 08:00 | 3h | 1,358 | 3,731 |
| 2 | January 9, 2024 03:15 | January 9, 2024 05:00 | 1h 45m | 751 | 946 |
| 3 | August 12, 2024 17:15 | August 12, 2024 18:15 | 1h | 666 | 547 |
| 4 | June 5, 2024 19:45 | June 5, 2024 22:45 | 3h | 334 | 446 |
| 5 | August 18, 2024 10:00 | August 18, 2024 10:15 | 15m | 132 | 33 |
| 6 | October 5, 2024 23:30 | October 6, 2024 05:00 | 5h 30m | 61 | 212 |
| 7 | August 7, 2024 15:15 | August 7, 2024 16:15 | 1h | 37 | 37 |
| 8 | January 27, 2024 06:45 | January 27, 2024 07:15 | 30m | 28 | 9 |
| 9 | November 14, 2024 19:15 | November 14, 2024 23:15 | 4h | 22 | 71 |
| 10 | June 4, 2024 16:15 | June 4, 2024 18:00 | 1h 45m | 19 | 31 |
Outage episodes by size in 2024: 5 reached 100+ customers, 1 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 Roosevelt 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 |
|---|---|---|---|---|---|
| Montana-Dakota Utilities Co | 2024 | 2.9 hrs | 1.26 | 2.1 hrs | 1.10 |
| Mountrail-Williams Elec Coop | 2024 | 4.7 hrs | 1.29 | 2.4 hrs | 1.12 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| McCone Electric Coop Inc | - | - | - | - | - |
| Sheridan Electric Coop, Inc | - | - | - | - | - |
| Lower Yellowstone R E A, Inc | - | - | - | - | - |
| NorVal Electric Cooperative, 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 ÷ 7,252 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. Roosevelt County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Roosevelt 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/roosevelt-county