County annual report · FIPS 30067
2023 Park County, MT Power Outage Report
In 2023, customers in Park County, MT went without power for an average of 1.8 hours, a total of 16K customer-hours (Montana average 1.8 hours). That ranks 26th worst of 50 Montana counties and 2378th 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 Park County, 2023
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 20, 2023 02:00 | August 20, 2023 11:30 | 9h 30m | 494 | 2,198 |
| 2 | October 19, 2023 14:45 | October 19, 2023 23:00 | 8h 15m | 370 | 704 |
| 3 | October 18, 2023 20:15 | October 19, 2023 00:30 | 4h 15m | 368 | 1,196 |
| 4 | June 18, 2023 13:45 | June 19, 2023 18:15 | 1d 4h | 367 | 3,106 |
| 5 | October 19, 2023 01:30 | October 19, 2023 01:45 | 15m | 367 | 92 |
| 6 | October 26, 2023 06:45 | October 26, 2023 09:45 | 3h | 367 | 965 |
| 7 | November 1, 2023 15:00 | November 1, 2023 16:00 | 1h | 367 | 367 |
| 8 | June 2, 2023 04:30 | June 2, 2023 05:45 | 1h 15m | 361 | 272 |
| 9 | September 12, 2023 13:30 | September 12, 2023 19:15 | 5h 45m | 111 | 246 |
| 10 | February 21, 2023 13:30 | February 21, 2023 23:45 | 10h 15m | 108 | 203 |
Outage episodes by size in 2023: 13 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 Park 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 |
|---|---|---|---|---|---|
| NorthWestern Energy LLC - (MT) | 2023 | 1.7 hrs | 0.93 | 1.7 hrs | 0.93 |
| Flathead Electric Coop Inc | 2023 | 2.7 hrs | 1.62 | 2.7 hrs | 1.62 |
| NorthWestern Energy | - | - | - | - | - |
| Park 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 ÷ 8,763 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. Park County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Park 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2023/montana/park-county