massoutage

County annual report · FIPS 30083

2022 Richland County, MT Power Outage Report

In 2022, customers in Richland County, MT went without power for an average of 0.6 hours, a total of 6,217 customer-hours (Montana average 3.5 hours). That ranks 49th worst of 50 Montana counties and 2806th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
0.6
9,805 customers
Customer-hours out
6,217
Peak customers out
1,633
Outages ≥1,000 out
2
0 of 10,000+ · 29 total
Longest outage
14d 17h
began April 19, 2022
Rank in state
49th/50
2806th of 2,976 US

Compared with MT, the US and 2021

Richland County, MT average hours without power per customer compared with state and national averages, 2022Richland County 0.6 hours, Montana average 3.5 hours, US average 8.3 hours, Richland County, 2021 7.9 hoursRichland CountyRichland County0.6hMontana averageMontana average3.5hUS averageUS average8.3hRichland County, 2021Richland County, 20217.9h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

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Richland County, MT customer-hours without power by month, 2022Jan 0, Feb 0, Mar 72, Apr 3,548, May 945, Jun 182, Jul 157, Aug 236, Sep 187, Oct 15, Nov 140, Dec 73601k2k3k4k0Jan0Feb72Mar3,548Apr945May182Jun157Jul236Aug187Sep15Oct140Nov736Dec
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Customer-hours; April was the worst month.

Richland County year over year

CSVJSON
Richland County, MT: average hours without power per customer by year2015: no data; 2016: no data; 2017: 2.0h; 2018: 2.7h, coverage 16%; 2019: 3.5h, coverage 75%; 2020: 0.5h, coverage 76%; 2021: 7.9h, coverage 76%; 2022: 0.6h, coverage 76%; 2023: 0.3h; 2024: 0.5h; 2025: 0.9h024680%50%100%n/a2015n/a20162.0h20172.7h20183.5h20190.5h20207.9h20210.6h20220.3h20230.5h20240.9h2025
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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 Richland County, 2022

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 19, 2022 06:15May 3, 2022 23:4514d 17h1,6333,810
2May 10, 2022 13:00May 10, 2022 13:4545m1,599403
3December 27, 2022 08:00December 27, 2022 20:3012h 30m378660
4May 20, 2022 20:15May 20, 2022 20:3015m36992
5May 20, 2022 23:45May 21, 2022 00:0015m36491
6November 10, 2022 01:15November 10, 2022 04:153h311131
7March 21, 2022 04:30March 21, 2022 04:4515m28772
8July 28, 2022 16:00July 28, 2022 16:4545m170128
9June 27, 2022 16:45June 27, 2022 17:3045m166124
10July 28, 2022 05:15July 28, 2022 05:3015m5815

Outage episodes by size in 2022: 9 reached 100+ customers, 2 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 Richland 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
McKenzie Electric Coop Inc202237.0 hrs2.253.1 hrs1.11
WAPA-- Western Area Power Administration-----
Montana-Dakota Utilities Co-----
McCone Electric Coop Inc-----
Sheridan Electric Coop, Inc-----
Lower Yellowstone R E A, 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 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 9,805 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. Richland County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Richland 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/richland-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON