massoutage

County annual report · FIPS 56013

2024 Fremont County, WY Power Outage Report

In 2024, customers in Fremont County, WY went without power for an average of 1.0 hours, a total of 27K customer-hours (Wyoming average 2.4 hours). That ranks 17th worst of 20 Wyoming counties and 2721st of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
1.0
26,823 customers
Customer-hours out
27K
Peak customers out
1,475
Outages ≥1,000 out
1
0 of 10,000+ · 307 total
Longest outage
1d 1h
began April 17, 2024
Rank in state
17th/20
2721st of 2,990 US

Compared with WY, the US and 2023

Fremont County, WY average hours without power per customer compared with state and national averages, 2024Fremont County 1.0 hours, Wyoming average 2.4 hours, US average 12.6 hours, Fremont County, 2023 1.3 hoursFremont CountyFremont County1.0hWyoming averageWyoming average2.4hUS averageUS average12.6hFremont County, 2023Fremont County, 20231.3h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Fremont County, WY customer-hours without power by month, 2024Jan 1,574, Feb 607, Mar 287, Apr 1,189, May 309, Jun 991, Jul 5,362, Aug 4,416, Sep 3,891, Oct 6,266, Nov 2,146, Dec 25502k4k6k8k1,574Jan607Feb287Mar1,189Apr309May991Jun5,362Jul4,416Aug3,891Sep6,266Oct2,146Nov255Dec
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Customer-hours; October was the worst month.

Fremont County year over year

CSVJSON
Fremont County, WY: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.7h; 2018: 0.4h, coverage 62%; 2019: 1.0h, coverage 68%; 2020: 0.9h, coverage 71%; 2021: 1.5h, coverage 71%; 2022: 0.8h, coverage 71%; 2023: 1.3h; 2024: 1.0h; 2025: 1.0h00.511.520%50%100%n/a2015n/a20160.7h20170.4h20181.0h20190.9h20201.5h20210.8h20221.3h20231.0h20241.0h2025
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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 Fremont County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 22, 2024 07:45October 22, 2024 10:453h1,4754,425
2January 14, 2024 03:45January 14, 2024 07:454h7781,238
3November 11, 2024 17:45November 11, 2024 21:153h 30m6681,663
4July 7, 2024 00:00July 7, 2024 07:157h 15m5432,428
5August 13, 2024 21:15August 14, 2024 03:456h 30m4222,004
6July 20, 2024 03:15July 20, 2024 07:003h 45m375316
7July 15, 2024 18:45July 16, 2024 00:305h 45m343920
8September 12, 2024 12:15September 12, 2024 17:455h 30m317487
9October 13, 2024 03:45October 13, 2024 06:002h 15m317677
10October 16, 2024 13:45October 16, 2024 16:002h 15m317318

Outage episodes by size in 2024: 26 reached 100+ customers, 1 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 Fremont 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
PacifiCorp20244.6 hrs1.672.0 hrs1.11
High Plains Power Inc20245.2 hrs-5.2 hrs-
WAPA-- Western Area Power Administration-----
Midvale Irrigation District-----

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 ÷ 26,823 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. Fremont County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Fremont 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/fremont-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON