County annual report · FIPS 30067
2020 Park County, MT Power Outage Report
In 2020, customers in Park County, MT went without power for an average of 6.6 hours, a total of 58K customer-hours (Montana average 5.6 hours). That ranks 20th worst of 50 Montana counties and 1137th of 3,019 nationally.
Compared with MT, the US and 2019
Coverage line is EAGLE-I's share of Montana customers tracked each year.
Biggest outages in Park County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 16, 2020 09:00 | March 16, 2020 11:15 | 2h 15m | 3,435 | 4,008 |
| 2 | February 6, 2020 22:30 | February 7, 2020 01:30 | 3h | 1,639 | 2,676 |
| 3 | May 7, 2020 00:45 | May 7, 2020 05:15 | 4h 30m | 1,150 | 4,049 |
| 4 | March 15, 2020 22:30 | March 16, 2020 00:15 | 1h 45m | 1,145 | 2,004 |
| 5 | March 16, 2020 04:30 | March 16, 2020 06:15 | 1h 45m | 1,145 | 1,489 |
| 6 | November 5, 2020 21:45 | November 5, 2020 23:15 | 1h 30m | 882 | 1,323 |
| 7 | October 12, 2020 12:15 | October 13, 2020 03:45 | 15h 30m | 652 | 2,931 |
| 8 | October 19, 2020 10:30 | October 19, 2020 13:45 | 3h 15m | 634 | 2,061 |
| 9 | September 21, 2020 15:15 | September 21, 2020 20:00 | 4h 45m | 610 | 2,438 |
| 10 | September 18, 2020 16:45 | September 18, 2020 18:30 | 1h 45m | 609 | 1,066 |
Outage episodes by size in 2020: 26 reached 100+ customers, 5 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 2020, 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) | 2020 | 2.8 hrs | 1.13 | 2.0 hrs | 1.02 |
| Flathead Electric Coop Inc | 2020 | 14.5 hrs | 2.38 | 2.9 hrs | 1.02 |
| 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 76% of Montana's customers in 2020; 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, 2020, 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/2020/montana/park-county