massoutage

County annual report · FIPS 06099

2018 Stanislaus County, CA Power Outage Report

In 2018, customers in Stanislaus County, CA went without power for an average of 0.2 hours, a total of 40K customer-hours (California average 3.7 hours). That ranks 55th worst of 57 California counties and 2631st of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
0.2
219,156 customers
Customer-hours out
40K
Peak customers out
3,153
Outages ≥1,000 out
6
0 of 10,000+ · 291 total
Longest outage
1d 6h
began December 17, 2018
Rank in state
55th/57
2631st of 2,798 US

Compared with CA, the US

Stanislaus County, CA average hours without power per customer compared with state and national averages, 2018Stanislaus County 0.2 hours, California average 3.7 hours, US average 5.6 hoursStanislaus CountyStanislaus County0.2hCalifornia averageCalifornia average3.7hUS averageUS average5.6h
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Average hours without power per customer in 2018.

Month by month

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Stanislaus County, CA customer-hours without power by month, 2018Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 1,865, Jul 3,699, Aug 7,718, Sep 1,360, Oct 11K, Nov 11K, Dec 3,65205k10k15k0Jan0Feb0Mar0Apr0May1,865Jun3,699Jul7,718Aug1,360Sep11KOct11KNov3,652Dec
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Customer-hours; October was the worst month.

Stanislaus County year over year

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Stanislaus County, CA: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: 0.2h, coverage 91%; 2019: 0.5h, coverage 93%; 2020: 0.5h, coverage 94%; 2021: 0.6h, coverage 95%; 2022: 0.3h, coverage 95%; 2023: 0.6h; 2024: 0.5h; 2025: 0.4h00.20.40.60%50%100%n/a2015n/a2016n/a20170.2h20180.5h20190.5h20200.6h20210.3h20220.6h20230.5h20240.4h2025
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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 Stanislaus County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 11, 2018 17:00November 11, 2018 20:453h 45m3,1535,520
2December 1, 2018 16:45December 2, 2018 04:4512h1,7561,667
3October 25, 2018 21:30October 26, 2018 09:3012h1,7117,646
4August 11, 2018 12:45August 11, 2018 23:4511h1,6954,725
5October 28, 2018 08:15October 28, 2018 19:4511h 30m1,4501,826
6November 22, 2018 00:45November 22, 2018 21:4521h1,2712,879
7July 19, 2018 06:30July 19, 2018 15:309h992954
8December 15, 2018 16:30December 16, 2018 09:1516h 45m6241,323
9August 18, 2018 00:15August 18, 2018 11:0010h 45m494560
10November 29, 2018 05:15November 29, 2018 20:3015h 15m3621,328

Outage episodes by size in 2018: 23 reached 100+ customers, 6 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 Stanislaus 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
Modesto Irrigation District201828 min0.43--
Turlock Irrigation District-----

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 ÷ 219,156 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. Stanislaus County has data for 2018–2025.

Cite this report

MassOutage (massoutage.com), Stanislaus 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/stanislaus-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON