massoutage

County annual report · FIPS 53001

2023 Adams County, WA Power Outage Report

In 2023, customers in Adams County, WA went without power for an average of 1.5 hours, a total of 23K customer-hours (Washington average 2.6 hours). That ranks 24th worst of 33 Washington counties and 2479th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
1.5
14,910 customers
Customer-hours out
23K
Peak customers out
833
Outages ≥1,000 out
0
0 of 10,000+ · 241 total
Longest outage
1d
began December 11, 2023
Rank in state
24th/33
2479th of 2,977 US

Compared with WA, the US and 2022

Adams County, WA average hours without power per customer compared with state and national averages, 2023Adams County 1.5 hours, Washington average 2.6 hours, US average 7.1 hours, Adams County, 2022 1.3 hoursAdams CountyAdams County1.5hWashington averageWashington average2.6hUS averageUS average7.1hAdams County, 2022Adams County, 20221.3h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Adams County, WA customer-hours without power by month, 2023Jan 1,992, Feb 511, Mar 367, Apr 493, May 2,598, Jun 2,804, Jul 2,446, Aug 3,909, Sep 1,514, Oct 3,427, Nov 1,968, Dec 83101k2k3k4k1,992Jan511Feb367Mar493Apr2,598May2,804Jun2,446Jul3,909Aug1,514Sep3,427Oct1,968Nov831Dec
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Customer-hours; August was the worst month.

Adams County year over year

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Adams County, WA: average hours without power per customer by year2015: 1.0h; 2016: 1.5h; 2017: 1.3h; 2018: no data; 2019: 0.8h, coverage 86%; 2020: 2.9h, coverage 87%; 2021: 1.4h, coverage 87%; 2022: 1.3h, coverage 87%; 2023: 1.5h; 2024: 0.8h; 2025: 1.6h01230%50%100%1.0h20151.5h20161.3h2017n/a20180.8h20192.9h20201.4h20211.3h20221.5h20230.8h20241.6h2025
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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 Washington customers tracked each year.

Biggest outages in Adams County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 27, 2023 15:15September 27, 2023 18:002h 45m833971
2July 10, 2023 05:30July 10, 2023 08:453h 15m485735
3July 11, 2023 19:15July 11, 2023 19:3015m484121
4October 17, 2023 17:00October 18, 2023 02:459h 45m4722,996
5August 29, 2023 14:00August 29, 2023 22:158h 15m4382,496
6June 5, 2023 00:00June 5, 2023 03:153h 15m4331,329
7January 10, 2023 04:00January 10, 2023 08:154h 15m4221,605
8July 31, 2023 17:15July 31, 2023 17:3015m35689
9March 22, 2023 18:45March 22, 2023 19:0015m32481
10July 21, 2023 04:15July 21, 2023 06:452h 30m301677

Outage episodes by size in 2023: 18 reached 100+ customers, 0 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 Adams County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Avista Corp20232.5 hrs0.902.1 hrs0.83
Inland Power & Light Company20233.6 hrs1.203.4 hrs1.09
Big Bend Electric Coop, Inc20235.3 hrs1.133.8 hrs1.01
Bonneville Power Administration-----
Avista Corp,avista-----
PUD No 2 of Grant County-----

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 Washington's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 14,910 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. Adams County has data for 2015–2017, 2019–2025.

Cite this report

MassOutage (massoutage.com), Adams County, WA annual power outage report, 2023, 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/2023/washington/adams-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON