massoutage

County annual report · FIPS 56001

2021 Albany County, WY Power Outage Report

In 2021, customers in Albany County, WY went without power for an average of 1.0 hours, a total of 23K customer-hours (Wyoming average 2.2 hours). That ranks 18th worst of 20 Wyoming counties and 2666th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
1.0
23,303 customers
Customer-hours out
23K
Peak customers out
2,653
Outages ≥1,000 out
3
0 of 10,000+ · 263 total
Longest outage
16h 15m
began July 16, 2021
Rank in state
18th/20
2666th of 2,974 US

Compared with WY, the US and 2020

Albany County, WY average hours without power per customer compared with state and national averages, 2021Albany County 1.0 hours, Wyoming average 2.2 hours, US average 8.9 hours, Albany County, 2020 10.9 hoursAlbany CountyAlbany County1.0hWyoming averageWyoming average2.2hUS averageUS average8.9hAlbany County, 2020Albany County, 202010.9h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Albany County, WY customer-hours without power by month, 2021Jan 1,209, Feb 201, Mar 159, Apr 539, May 18K, Jun 451, Jul 437, Aug 790, Sep 521, Oct 717, Nov 74, Dec 56405k10k15k20k1,209Jan201Feb159Mar539Apr18KMay451Jun437Jul790Aug521Sep717Oct74Nov564Dec
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Customer-hours; May was the worst month.

Albany County year over year

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Albany County, WY: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.7h; 2018: 2.3h, coverage 62%; 2019: 1.8h, coverage 68%; 2020: 10.9h, coverage 71%; 2021: 1.0h, coverage 71%; 2022: 4.0h, coverage 71%; 2023: 2.3h; 2024: 1.8h; 2025: 2.2h0510150%50%100%n/a2015n/a20160.7h20172.3h20181.8h201910.9h20201.0h20214.0h20222.3h20231.8h20242.2h2025
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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 Wyoming customers tracked each year.

Biggest outages in Albany County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 6, 2021 21:00January 7, 2021 05:158h 15m2,653694
2May 8, 2021 11:15May 9, 2021 02:3015h 15m2,30617K
3May 8, 2021 09:45May 8, 2021 10:1530m2,192549
4October 8, 2021 03:30October 8, 2021 05:452h 15m137276
5October 7, 2021 09:15October 7, 2021 11:302h 15m116261
6January 3, 2021 00:00January 3, 2021 02:452h 45m115259
7May 14, 2021 21:15May 14, 2021 22:0045m10276
8September 16, 2021 18:00September 16, 2021 19:301h 30m101150
9August 16, 2021 04:45August 16, 2021 08:303h 45m97364
10April 11, 2021 12:00April 11, 2021 13:451h 45m7596

Outage episodes by size in 2021: 8 reached 100+ customers, 3 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 Albany County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PacifiCorp20214.3 hrs1.862.0 hrs1.19
Carbon Power & Light, Inc20187.6 hrs1.562.5 hrs1.34
Cheyenne Light Fuel & Power20214.0 hrs1.0632 min0.39
WAPA-- Western Area Power Administration-----
High West Energy, Inc-----
Wheatland Rural Elec Assn, 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 71% of Wyoming's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 23,303 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. Albany County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Albany County, WY annual power outage report, 2021, 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/2021/wyoming/albany-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON