massoutage

County annual report · FIPS 41021

2021 Gilliam County, OR Power Outage Report

In 2021, customers in Gilliam County, OR went without power for an average of 0.3 hours, a total of 516 customer-hours (Oregon average 20.6 hours). That ranks 34th worst of 35 Oregon counties and 2856th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
0.3
1,640 customers
Customer-hours out
516
Peak customers out
42
Outages ≥1,000 out
0
0 of 10,000+ · 33 total
Longest outage
9h 45m
began July 22, 2021
Rank in state
34th/35
2856th of 2,974 US

Compared with OR, the US and 2020

Gilliam County, OR average hours without power per customer compared with state and national averages, 2021Gilliam County 0.3 hours, Oregon average 20.6 hours, US average 8.9 hours, Gilliam County, 2020 3.8 hoursGilliam CountyGilliam County0.3hOregon averageOregon average20.6hUS averageUS average8.9hGilliam County, 2020Gilliam County, 20203.8h
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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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Gilliam County, OR customer-hours without power by month, 2021Jan 4, Feb 14, Mar 6, Apr 1, May 36, Jun 8, Jul 356, Aug 4, Sep 6, Oct 2, Nov 30, Dec 5201002003004004Jan14Feb6Mar1Apr36May8Jun356Jul4Aug6Sep2Oct30Nov52Dec
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Customer-hours; July was the worst month.

Gilliam County year over year

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Gilliam County, OR: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 2.0h, coverage 75%; 2019: 1.3h, coverage 86%; 2020: 3.8h, coverage 90%; 2021: 0.3h, coverage 90%; 2022: 1.0h, coverage 90%; 2023: 2.3h; 2024: 6.4h; 2025: 6.4h024680%50%100%n/a2015n/a20160.0h20172.0h20181.3h20193.8h20200.3h20211.0h20222.3h20236.4h20246.4h2025
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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 Oregon customers tracked each year.

Biggest outages in Gilliam County, 2021

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 19, 2021 12:45July 19, 2021 20:307h 45m42324
2May 1, 2021 23:30May 2, 2021 02:002h 30m1023
3November 16, 2021 03:00November 16, 2021 05:002h1020
4December 7, 2021 19:00December 7, 2021 21:452h 45m820
5June 11, 2021 17:15June 11, 2021 17:3015m72
6December 9, 2021 18:15December 9, 2021 21:002h 45m514
7December 10, 2021 17:45December 10, 2021 19:301h 45m58
8May 28, 2021 01:00May 28, 2021 03:302h 30m410
9July 13, 2021 16:15July 13, 2021 17:451h 30m45
10November 12, 2021 07:00November 12, 2021 07:3030m42

Outage episodes by size in 2021: 0 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 Gilliam County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PacifiCorp20214.3 hrs1.862.0 hrs1.19
Bonneville Power Administration-----
Columbia Basin Elec Cooperative, Inc-----
Wasco Electric Coop, 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 90% of Oregon's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,640 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. Gilliam County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Gilliam County, OR 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/oregon/gilliam-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON