massoutage

County annual report · FIPS 56011

2024 Crook County, WY Power Outage Report

In 2024, customers in Crook County, WY went without power for an average of 23.4 hours, a total of 106K customer-hours (Wyoming average 2.4 hours). That ranks 1st worst of 20 Wyoming counties and 426th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
23.4
4,545 customers
Customer-hours out
106K
Peak customers out
3,981
Outages ≥1,000 out
7
0 of 10,000+ · 290 total
Longest outage
37d 14h
began July 15, 2024
Rank in state
1st/20
426th of 2,990 US

Compared with WY, the US and 2023

Crook County, WY average hours without power per customer compared with state and national averages, 2024Crook County 23.4 hours, Wyoming average 2.4 hours, US average 12.6 hours, Crook County, 2023 17.8 hoursCrook CountyCrook County23.4hWyoming averageWyoming average2.4hUS averageUS average12.6hCrook County, 2023Crook County, 202317.8h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Crook County, WY customer-hours without power by month, 2024Jan 1,463, Feb 924, Mar 23K, Apr 1,594, May 40K, Jun 7,319, Jul 4,469, Aug 5,860, Sep 1,697, Oct 20K, Nov 775, Dec 184010k20k30k40k1,463Jan924Feb23KMar1,594Apr40KMay7,319Jun4,469Jul5,860Aug1,697Sep20KOct775Nov184Dec
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Customer-hours; May was the worst month.

Crook County year over year

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Crook County, WY: average hours without power per customer by year2015: no data; 2016: 0.0h; 2017: no data; 2018: 0.0h, coverage 62%; 2019: 0.0h, coverage 68%; 2020: 14.2h, coverage 71%; 2021: 10.1h, coverage 71%; 2022: 11.6h, coverage 71%; 2023: 17.8h; 2024: 23.4h; 2025: 33.1h0102030400%50%100%n/a20150.0h2016n/a20170.0h20180.0h201914.2h202010.1h202111.6h202217.8h202323.4h202433.1h2025
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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 Wyoming customers tracked each year.

Biggest outages in Crook County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 7, 2024 01:30May 9, 2024 21:452d 20h3,98138K
2October 29, 2024 23:00October 31, 2024 03:301d 4h2,50017K
3May 24, 2024 15:45May 24, 2024 17:001h 15m2,326919
4March 4, 2024 17:30March 4, 2024 22:455h 15m1,399704
5March 6, 2024 09:15March 6, 2024 15:005h 45m1,3998,041
6April 15, 2024 15:45April 15, 2024 16:1530m1,164292
7April 25, 2024 15:00April 25, 2024 21:456h 45m1,158638
8June 10, 2024 15:00June 10, 2024 22:307h 30m9742,439
9January 14, 2024 09:15January 14, 2024 11:302h 15m609514
10September 17, 2024 15:00September 18, 2024 22:451d 7h5241,257

Outage episodes by size in 2024: 29 reached 100+ customers, 7 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 Crook County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Black Hills Power, Inc.202440 min0.7040 min0.70
Powder River Energy Corp20248.3 hrs2.884.9 hrs2.24
Southeast Electric Coop, Inc-----
City of Gillette - (WY)-----

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 Wyoming's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,545 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. Crook County has data for 2016, 2018–2025.

Cite this report

MassOutage (massoutage.com), Crook County, WY 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/wyoming/crook-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON