massoutage

County annual report · FIPS 53013

2018 Columbia County, WA Power Outage Report

In 2018, customers in Columbia County, WA went without power for an average of 3.9 hours, a total of 7,559 customer-hours (Washington average 2.1 hours). That ranks 6th worst of 27 Washington counties and 1288th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
3.9
1,960 customers
Customer-hours out
7,559
Peak customers out
2,041
Outages ≥1,000 out
3
0 of 10,000+ · 58 total
Longest outage
19h
began May 9, 2018
Rank in state
6th/27
1288th of 2,798 US

Compared with WA, the US and 2017

Columbia County, WA average hours without power per customer compared with state and national averages, 2018Columbia County 3.9 hours, Washington average 2.1 hours, US average 5.6 hours, Columbia County, 2017 0.1 hoursColumbia CountyColumbia County3.9hWashington averageWashington average2.1hUS averageUS average5.6hColumbia County, 2017Columbia County, 20170.1h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Columbia County, WA customer-hours without power by month, 2018Jan 4,550, Feb 326, Mar 98, Apr 420, May 679, Jun 11, Jul 48, Aug 468, Sep 0, Oct 19, Nov 54, Dec 88802k4k6k4,550Jan326Feb98Mar420Apr679May11Jun48Jul468Aug0Sep19Oct54Nov888Dec
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Customer-hours; January was the worst month.

Columbia County year over year

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Columbia County, WA: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.1h; 2018: 3.9h, coverage 71%; 2019: 10.5h, coverage 86%; 2020: 11.1h, coverage 87%; 2021: 2.9h, coverage 87%; 2022: 3.1h, coverage 87%; 2023: 1.6h; 2024: 3.4h; 2025: 7.1h0510150%50%100%n/a2015n/a20160.1h20173.9h201810.5h201911.1h20202.9h20213.1h20221.6h20233.4h20247.1h2025
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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 Washington customers tracked each year.

Biggest outages in Columbia County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 5, 2018 19:45January 5, 2018 20:1530m2,041517
2January 24, 2018 14:15January 24, 2018 18:454h 30m1,0563,697
3February 21, 2018 14:30February 21, 2018 16:151h 45m1,056265
4August 27, 2018 11:45August 27, 2018 17:155h 30m129382
5December 18, 2018 12:15December 18, 2018 18:306h 15m129775
6May 9, 2018 04:30May 9, 2018 23:3019h125673
7January 11, 2018 16:00January 11, 2018 19:303h 30m91296
8April 15, 2018 16:15April 15, 2018 22:156h66380
9July 29, 2018 22:45July 30, 2018 02:003h 15m5546
10August 24, 2018 13:15August 24, 2018 14:301h 15m5555

Outage episodes by size in 2018: 6 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 Columbia County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PacifiCorp20183.2 hrs1.622.0 hrs1.25
Inland Power & Light Company20183.3 hrs1.553.3 hrs1.55
Columbia Rural Elec Assn, Inc20182.6 hrs0.952.6 hrs0.95

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 Washington's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,960 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. Columbia County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Columbia County, WA annual power outage report, 2018, 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/2018/washington/columbia-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON