massoutage

County annual report · FIPS 06079

2022 San Luis Obispo County, CA Power Outage Report

In 2022, customers in San Luis Obispo County, CA went without power for an average of 8.8 hours, a total of 1.1M customer-hours (California average 4.9 hours). That ranks 21st worst of 57 California counties and 827th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
8.8
125,727 customers
Customer-hours out
1.1M
Peak customers out
29,494
Outages ≥1,000 out
76
2 of 10,000+ · 520 total
Longest outage
4d 14h
began December 10, 2022
Rank in state
21st/57
827th of 2,976 US

Compared with CA, the US and 2021

San Luis Obispo County, CA average hours without power per customer compared with state and national averages, 2022San Luis Obispo County 8.8 hours, California average 4.9 hours, US average 8.3 hours, San Luis Obispo County, 2021 8.4 hoursSan Luis Obispo CountySan Luis Obispo Coun…8.8hCalifornia averageCalifornia average4.9hUS averageUS average8.3hSan Luis Obispo County, 2021San Luis Obispo Coun…8.4h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

CSVJSON
San Luis Obispo County, CA customer-hours without power by month, 2022Jan 17K, Feb 32K, Mar 46K, Apr 42K, May 108K, Jun 95K, Jul 98K, Aug 64K, Sep 107K, Oct 111K, Nov 32K, Dec 359K0100k200k300k400k17KJan32KFeb46KMar42KApr108KMay95KJun98KJul64KAug107KSep111KOct32KNov359KDec
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Customer-hours; December was the worst month.

San Luis Obispo County year over year

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San Luis Obispo County, CA: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 1.8h, coverage 91%; 2019: 4.6h, coverage 93%; 2020: 3.9h, coverage 94%; 2021: 8.4h, coverage 95%; 2022: 8.8h, coverage 95%; 2023: 9.6h; 2024: 10.1h; 2025: 7.2h0510150%50%100%n/a2015n/a20160.0h20171.8h20184.6h20193.9h20208.4h20218.8h20229.6h202310.1h20247.2h2025
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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 San Luis Obispo County, 2022

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 10, 2022 20:45December 15, 2022 11:154d 14h29,494328K
2October 14, 2022 12:15October 15, 2022 18:451d 6h10,36636K
3March 1, 2022 14:45March 1, 2022 15:3045m7,8343,939
4September 8, 2022 14:15September 9, 2022 05:3015h 15m6,32820K
5October 1, 2022 14:15October 3, 2022 03:001d 12h5,72236K
6November 16, 2022 14:45November 17, 2022 07:0016h 15m5,7164,975
7July 9, 2022 03:15July 9, 2022 08:004h 45m5,41512K
8July 30, 2022 15:00July 31, 2022 17:301d 2h4,52216K
9June 10, 2022 13:00June 13, 2022 03:452d 14h3,93922K
10March 29, 2022 14:30March 30, 2022 00:3010h3,8291,822

Outage episodes by size in 2022: 215 reached 100+ customers, 76 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 San Luis Obispo County reported on EIA Form 861 for 2022, 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.20225.4 hrs1.784.3 hrs1.63
Central Coast Community Energy-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of California's customers in 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 125,727 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 Luis Obispo County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), San Luis Obispo County, CA annual power outage report, 2022, 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/2022/california/san-luis-obispo-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON