massoutage

County annual report · FIPS 06111

2017 Ventura County, CA Power Outage Report

In 2017, customers in Ventura County, CA went without power for an average of 6.2 hours, a total of 2.0M customer-hours (California average 2.2 hours). That ranks 3rd worst of 47 California counties and 841st of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
6.2
317,658 customers
Customer-hours out
2.0M
Peak customers out
106,947
Outages ≥1,000 out
104
6 of 10,000+ · 499 total
Longest outage
8d 10h
began December 22, 2017
Rank in state
3rd/47
841st of 2,786 US

Compared with CA, the US and 2016

Ventura County, CA average hours without power per customer compared with state and national averages, 2017Ventura County 6.2 hours, California average 2.2 hours, US average 7.4 hours, Ventura County, 2016 5.1 hoursVentura CountyVentura County6.2hCalifornia averageCalifornia average2.2hUS averageUS average7.4hVentura County, 2016Ventura County, 20165.1h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Ventura County, CA customer-hours without power by month, 2017Jan 101K, Feb 111K, Mar 107K, Apr 72K, May 103K, Jun 141K, Jul 321K, Aug 233K, Sep 189K, Oct 228K, Nov 26K, Dec 345K0100k200k300k400k101KJan111KFeb107KMar72KApr103KMay141KJun321KJul233KAug189KSep228KOct26KNov345KDec
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Customer-hours; December was the worst month.

Ventura County year over year

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Ventura County, CA: average hours without power per customer by year2015: 4.5h; 2016: 5.1h; 2017: 6.2h; 2018: 6.7h, coverage 91%; 2019: 7.0h, coverage 93%; 2020: 5.3h, coverage 94%; 2021: 14.0h, coverage 95%; 2022: 6.2h, coverage 95%; 2023: 4.5h; 2024: 8.4h; 2025: 28.4h01020300%50%100%4.5h20155.1h20166.2h20176.7h20187.0h20195.3h202014.0h20216.2h20224.5h20238.4h202428.4h2025
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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 California customers tracked each year.

Biggest outages in Ventura County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 4, 2017 03:15December 6, 2017 10:302d 7h106,947153K
2October 27, 2017 15:15October 29, 2017 01:001d 9h33,01861K
3July 5, 2017 15:15July 5, 2017 23:458h 30m22,60313K
4October 24, 2017 02:30October 25, 2017 22:301d 20h14,30232K
5December 11, 2017 19:30December 17, 2017 17:005d 21h13,575141K
6August 29, 2017 13:45September 2, 2017 15:154d 1h11,91392K
7December 10, 2017 15:15December 11, 2017 01:3010h 15m8,4024,371
8July 24, 2017 15:15July 25, 2017 00:459h 30m7,7663,487
9February 17, 2017 18:30February 18, 2017 04:3010h7,69428K
10May 10, 2017 15:30May 10, 2017 21:306h6,7923,294

Outage episodes by size in 2017: 341 reached 100+ customers, 104 reached 1,000+ customers, 6 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 Ventura County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southern California Edison Co20172.3 hrs1.191.5 hrs0.87

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 California's customers in 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 317,658 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. Ventura County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Ventura County, CA annual power outage report, 2017, 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/2017/california/ventura-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON