massoutage

County annual report · FIPS 06113

2020 Yolo County, CA Power Outage Report

In 2020, customers in Yolo County, CA went without power for an average of 3.4 hours, a total of 345K customer-hours (California average 6.3 hours). That ranks 49th worst of 57 California counties and 1748th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
3.4
101,509 customers
Customer-hours out
345K
Peak customers out
4,243
Outages ≥1,000 out
24
0 of 10,000+ · 629 total
Longest outage
35d 22h
began July 24, 2020
Rank in state
49th/57
1748th of 3,019 US

Compared with CA, the US and 2019

Yolo County, CA average hours without power per customer compared with state and national averages, 2020Yolo County 3.4 hours, California average 6.3 hours, US average 8.7 hours, Yolo County, 2019 6.4 hoursYolo CountyYolo County3.4hCalifornia averageCalifornia average6.3hUS averageUS average8.7hYolo County, 2019Yolo County, 20196.4h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Yolo County, CA customer-hours without power by month, 2020Jan 27K, Feb 7,086, Mar 13K, Apr 17K, May 13K, Jun 64K, Jul 13K, Aug 116K, Sep 18K, Oct 22K, Nov 20K, Dec 15K050k100k150k27KJan7,086Feb13KMar17KApr13KMay64KJun13KJul116KAug18KSep22KOct20KNov15KDec
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Customer-hours; August was the worst month.

Yolo County year over year

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Yolo County, CA: average hours without power per customer by year2015: 3.8h; 2016: 2.0h; 2017: no data; 2018: 1.7h, coverage 91%; 2019: 6.4h, coverage 93%; 2020: 3.4h, coverage 94%; 2021: 14.7h, coverage 95%; 2022: 4.0h, coverage 95%; 2023: 17.9h; 2024: 5.4h; 2025: 3.3h051015200%50%100%3.8h20152.0h2016n/a20171.7h20186.4h20193.4h202014.7h20214.0h202217.9h20235.4h20243.3h2025
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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 California customers tracked each year.

Biggest outages in Yolo County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 28, 2020 16:45January 30, 2020 11:151d 18h4,2437,807
2October 11, 2020 12:15October 12, 2020 23:001d 10h4,1891,994
3January 9, 2020 16:00January 13, 2020 17:304d 1h3,41910K
4July 24, 2020 15:15August 29, 2020 13:3035d 22h3,386117K
5September 30, 2020 15:30October 1, 2020 02:1510h 45m3,3802,023
6November 2, 2020 14:30November 3, 2020 12:0021h 30m2,1881,391
7June 28, 2020 03:45June 28, 2020 20:1516h 30m2,1714,570
8June 3, 2020 15:00June 4, 2020 03:4512h 45m2,1122,848
9April 29, 2020 14:45April 30, 2020 11:3020h 45m2,0903,186
10June 26, 2020 23:15June 28, 2020 02:451d 3h2,07825K

Outage episodes by size in 2020: 108 reached 100+ customers, 24 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 Yolo County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Pacific Gas & Electric Co.20207.4 hrs1.342.3 hrs1.04
WAPA-- Western Area Power Administration-----
Sacramento Municipal Util Dist-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 94% of California's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 101,509 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. Yolo County has data for 2015–2016, 2018–2025.

Cite this report

MassOutage (massoutage.com), Yolo County, CA annual power outage report, 2020, 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/2020/california/yolo-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON