massoutage

County annual report · FIPS 06079

2025 San Luis Obispo County, CA Power Outage Report

In 2025, customers in San Luis Obispo County, CA went without power for an average of 7.2 hours, a total of 904K customer-hours (California average 7.6 hours). That ranks 29th worst of 57 California counties and 1116th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
7.2
125,727 customers
Customer-hours out
904K
Peak customers out
8,779
Outages ≥1,000 out
67
0 of 10,000+ · 410 total
Longest outage
17d 9h
began August 3, 2025
Rank in state
29th/57
1116th of 3,000 US

Compared with CA, the US and 2024

San Luis Obispo County, CA average hours without power per customer compared with state and national averages, 2025San Luis Obispo County 7.2 hours, California average 7.6 hours, US average 5.9 hours, San Luis Obispo County, 2024 10.1 hoursSan Luis Obispo CountySan Luis Obispo Coun…7.2hCalifornia averageCalifornia average7.6hUS averageUS average5.9hSan Luis Obispo County, 2024San Luis Obispo Coun…10.1h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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San Luis Obispo County, CA customer-hours without power by month, 2025Jan 38K, Feb 65K, Mar 43K, Apr 46K, May 73K, Jun 176K, Jul 94K, Aug 73K, Sep 121K, Oct 61K, Nov 49K, Dec 65K050k100k150k200k38KJan65KFeb43KMar46KApr73KMay176KJun94KJul73KAug121KSep61KOct49KNov65KDec
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Customer-hours; June 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, 2025

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
1September 24, 2025 02:30September 25, 2025 08:151d 5h8,77920K
2September 15, 2025 03:00September 16, 2025 22:151d 19h7,46628K
3December 24, 2025 00:00December 27, 2025 05:303d 5h7,23428K
4December 8, 2025 05:30December 9, 2025 10:151d 4h6,0754,038
5November 1, 2025 16:15November 1, 2025 21:455h 30m6,0308,750
6February 24, 2025 03:45February 28, 2025 15:004d 11h5,72436K
7June 18, 2025 14:45June 23, 2025 02:454d 12h5,531109K
8March 4, 2025 14:15March 6, 2025 11:301d 21h5,42120K
9October 26, 2025 14:45October 26, 2025 21:156h 30m5,1945,789
10July 2, 2025 13:45July 10, 2025 04:457d 15h5,15921K

Outage episodes by size in 2025: 186 reached 100+ customers, 67 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 San Luis Obispo County reported on EIA Form 861 for 2025, 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.20248.5 hrs2.154.6 hrs1.82
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 n/a of California's customers in 2025; 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, 2025, 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/2025/california/san-luis-obispo-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON