massoutage

County annual report · FIPS 06073

2015 San Diego County, CA Power Outage Report

In 2015, customers in San Diego County, CA went without power for an average of 1.8 hours, a total of 2.5M customer-hours (California average 3.1 hours). That ranks 11th worst of 23 California counties and 1315th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
1.8
1,362,929 customers
Customer-hours out
2.5M
Peak customers out
68,549
Outages ≥1,000 out
142
7 of 10,000+ · 355 total
Longest outage
8d 6h
began September 11, 2015
Rank in state
11th/23
1315th of 2,484 US

Compared with CA, the US

San Diego County, CA average hours without power per customer compared with state and national averages, 2015San Diego County 1.8 hours, California average 3.1 hours, US average 2.9 hoursSan Diego CountySan Diego County1.8hCalifornia averageCalifornia average3.1hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

CSVJSON
San Diego County, CA customer-hours without power by month, 2015Jan 155K, Feb 168K, Mar 132K, Apr 193K, May 177K, Jun 171K, Jul 324K, Aug 248K, Sep 406K, Oct 170K, Nov 224K, Dec 132K0200k400k600k155KJan168KFeb132KMar193KApr177KMay171KJun324KJul248KAug406KSep170KOct224KNov132KDec
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Customer-hours; September was the worst month.

San Diego County year over year

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San Diego County, CA: average hours without power per customer by year2015: 1.8h; 2016: 2.2h; 2017: 2.8h; 2018: 2.9h, coverage 91%; 2019: 3.1h, coverage 93%; 2020: 4.6h, coverage 94%; 2021: 2.9h, coverage 95%; 2022: 2.6h, coverage 95%; 2023: 2.6h; 2024: 4.0h; 2025: 3.8h02460%50%100%1.8h20152.2h20162.8h20172.9h20183.1h20194.6h20202.9h20212.6h20222.6h20234.0h20243.8h2025
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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 San Diego County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 20, 2015 20:15September 20, 2015 22:152h68,54996K
2July 14, 2015 15:00July 19, 2015 01:454d 10h26,068161K
3November 25, 2015 04:00November 26, 2015 21:001d 17h17,17864K
4June 25, 2015 03:30June 26, 2015 00:4521h 15m16,15116K
5July 1, 2015 14:30July 5, 2015 00:003d 9h15,89739K
6October 15, 2015 06:45October 17, 2015 11:002d 4h14,89914K
7September 9, 2015 00:15September 11, 2015 03:452d 3h11,82568K
8September 11, 2015 15:30September 19, 2015 21:308d 6h8,215126K
9August 14, 2015 14:15August 21, 2015 12:006d 21h7,38473K
10November 4, 2015 03:45November 6, 2015 01:301d 21h7,27429K

Outage episodes by size in 2015: 265 reached 100+ customers, 142 reached 1,000+ customers, 7 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 San Diego County reported on EIA Form 861 for 2015, 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.20152.5 hrs1.051.6 hrs0.87
Southern California Edison Co20151.9 hrs0.921.7 hrs0.86
Imperial Irrigation District201576 min0.9153 min0.61
San Diego Gas & Electric Co201563 min0.6258 min0.53
City of Escondido - (CA)-----

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 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,362,929 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. San Diego County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), San Diego County, CA annual power outage report, 2015, 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/2015/california/san-diego-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON