massoutage

County annual report · FIPS 30029

2022 Flathead County, MT Power Outage Report

In 2022, customers in Flathead County, MT went without power for an average of 8.9 hours, a total of 581K customer-hours (Montana average 3.5 hours). That ranks 12th worst of 50 Montana counties and 824th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
8.9
65,575 customers
Customer-hours out
581K
Peak customers out
16,122
Outages ≥1,000 out
19
3 of 10,000+ · 725 total
Longest outage
5d 19h
began November 2, 2022
Rank in state
12th/50
824th of 2,976 US

Compared with MT, the US and 2021

Flathead County, MT average hours without power per customer compared with state and national averages, 2022Flathead County 8.9 hours, Montana average 3.5 hours, US average 8.3 hours, Flathead County, 2021 8.3 hoursFlathead CountyFlathead County8.9hMontana averageMontana average3.5hUS averageUS average8.3hFlathead County, 2021Flathead County, 20218.3h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

CSVJSON
Flathead County, MT customer-hours without power by month, 2022Jan 1,820, Feb 13K, Mar 14K, Apr 21K, May 9,483, Jun 21K, Jul 16K, Aug 18K, Sep 10K, Oct 7,660, Nov 404K, Dec 45K0200k400k600k1,820Jan13KFeb14KMar21KApr9,483May21KJun16KJul18KAug10KSep7,660Oct404KNov45KDec
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Customer-hours; November was the worst month.

Flathead County year over year

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Flathead County, MT: average hours without power per customer by year2015: 3.5h; 2016: 2.4h; 2017: 3.9h; 2018: 2.2h, coverage 16%; 2019: 1.6h, coverage 75%; 2020: 13.2h, coverage 76%; 2021: 8.3h, coverage 76%; 2022: 8.9h, coverage 76%; 2023: 2.3h; 2024: 6.8h; 2025: 12.2h0510150%50%100%3.5h20152.4h20163.9h20172.2h20181.6h201913.2h20208.3h20218.9h20222.3h20236.8h202412.2h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Montana customers tracked each year.

Biggest outages in Flathead County, 2022

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 2, 2022 09:15November 8, 2022 04:455d 19h16,122399K
2August 24, 2022 15:45August 25, 2022 02:0010h 15m14,22511K
3July 30, 2022 03:45July 30, 2022 06:002h 15m13,1249,428
4December 22, 2022 13:00December 23, 2022 06:1517h 15m6,54233K
5October 6, 2022 04:00October 6, 2022 04:1515m2,880720
6December 21, 2022 13:30December 21, 2022 21:157h 45m2,6114,107
7June 9, 2022 05:30June 9, 2022 12:457h 15m2,1577,645
8March 6, 2022 09:30March 6, 2022 13:003h 30m1,9164,945
9September 22, 2022 16:15September 22, 2022 17:301h 15m1,8032,254
10April 4, 2022 20:45April 5, 2022 10:3013h 45m1,72911K

Outage episodes by size in 2022: 91 reached 100+ customers, 19 reached 1,000+ customers, 3 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 Flathead County reported on EIA Form 861 for 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Flathead Electric Coop Inc202211.5 hrs2.723.7 hrs1.82
Lincoln Electric Coop, Inc201818.7 hrs-3.0 hrs-
Glacier Electric Coop, Inc-----
USBIA-Mission Valley Power-----

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 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 65,575 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. Flathead County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Flathead County, MT annual power outage report, 2022, 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/2022/montana/flathead-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON