County annual report · FIPS 30073
2024 Pondera County, MT Power Outage Report
In 2024, customers in Pondera County, MT went without power for an average of 8.1 hours, a total of 16K customer-hours (Montana average 8.5 hours). That ranks 17th worst of 51 Montana counties and 1110th 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 Pondera 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 12, 2024 14:00 | September 12, 2024 19:30 | 5h 30m | 1,739 | 9,066 |
| 2 | May 7, 2024 20:00 | May 7, 2024 22:30 | 2h 30m | 620 | 976 |
| 3 | July 25, 2024 21:30 | July 26, 2024 02:00 | 4h 30m | 532 | 668 |
| 4 | October 5, 2024 01:45 | October 6, 2024 00:00 | 22h 15m | 147 | 517 |
| 5 | November 17, 2024 12:45 | November 17, 2024 19:30 | 6h 45m | 133 | 421 |
| 6 | February 1, 2024 18:30 | February 1, 2024 23:00 | 4h 30m | 104 | 468 |
| 7 | April 22, 2024 16:45 | April 22, 2024 20:30 | 3h 45m | 100 | 152 |
| 8 | August 19, 2024 05:30 | August 19, 2024 10:00 | 4h 30m | 68 | 122 |
| 9 | July 26, 2024 20:15 | July 26, 2024 21:30 | 1h 15m | 62 | 78 |
| 10 | October 12, 2024 20:15 | October 12, 2024 21:30 | 1h 15m | 62 | 78 |
Outage episodes by size in 2024: 7 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 Pondera 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 | - | - | - | - | - |
| Sun River Electric Coop, Inc | - | - | - | - | - |
| Glacier Electric Coop, Inc | - | - | - | - | - |
| Marias 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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,031 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. Pondera County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Pondera 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/pondera-county