massoutage

County annual report · FIPS 06033

2018 Lake County, CA Power Outage Report

In 2018, customers in Lake County, CA went without power for an average of 27.0 hours, a total of 766K customer-hours (California average 3.7 hours). That ranks 3rd worst of 57 California counties and 208th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
27.0
28,397 customers
Customer-hours out
766K
Peak customers out
12,139
Outages ≥1,000 out
10
2 of 10,000+ · 335 total
Longest outage
12d 20h
began July 29, 2018
Rank in state
3rd/57
208th of 2,798 US

Compared with CA, the US

Lake County, CA average hours without power per customer compared with state and national averages, 2018Lake County 27.0 hours, California average 3.7 hours, US average 5.6 hoursLake CountyLake County27.0hCalifornia averageCalifornia average3.7hUS averageUS average5.6h
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Average hours without power per customer in 2018.

Month by month

CSVJSON
Lake County, CA customer-hours without power by month, 2018Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 44K, Jul 190K, Aug 198K, Sep 35K, Oct 283K, Nov 4,739, Dec 11K0100k200k300k0Jan0Feb0Mar0Apr0May44KJun190KJul198KAug35KSep283KOct4,739Nov11KDec
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Customer-hours; October was the worst month.

Lake County year over year

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Lake County, CA: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: 27.0h, coverage 91%; 2019: 182.3h, coverage 93%; 2020: 50.2h, coverage 94%; 2021: 28.1h, coverage 95%; 2022: 12.6h, coverage 95%; 2023: 59.3h; 2024: 30.0h; 2025: 9.2h0501001502000%50%100%n/a2015n/a2016n/a201727.0h2018182.3h201950.2h202028.1h202112.6h202259.3h202330.0h20249.2h2025
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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 Lake County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 15, 2018 03:45October 17, 2018 01:301d 21h12,139280K
2July 29, 2018 00:15August 10, 2018 20:4512d 20h11,131363K
3September 27, 2018 20:00September 28, 2018 00:304h 30m4,49217K
4September 22, 2018 04:30September 22, 2018 20:0015h 30m3,4944,593
5September 24, 2018 00:30September 24, 2018 05:305h3,0008,608
6August 25, 2018 13:30August 26, 2018 10:4521h 15m2,5967,155
7September 11, 2018 15:30September 11, 2018 21:306h1,5571,445
8June 24, 2018 07:15June 27, 2018 06:002d 22h1,37342K
9July 19, 2018 12:30July 19, 2018 19:457h 15m1,1861,972
10July 16, 2018 02:45July 16, 2018 06:454h1,0281,375

Outage episodes by size in 2018: 45 reached 100+ customers, 10 reached 1,000+ customers, 2 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 Lake 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
Pacific Gas & Electric Co.20185.0 hrs1.182.1 hrs1.08

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of California's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 28,397 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. Lake County has data for 2018–2025.

Cite this report

MassOutage (massoutage.com), Lake County, CA 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/california/lake-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON