massoutage

County annual report · FIPS 06067

2018 Sacramento County, CA Power Outage Report

In 2018, customers in Sacramento County, CA went without power for an average of 1.1 hours, a total of 674K customer-hours (California average 3.7 hours). That ranks 48th worst of 57 California counties and 2279th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
1.1
625,566 customers
Customer-hours out
674K
Peak customers out
39,477
Outages ≥1,000 out
95
9 of 10,000+ · 622 total
Longest outage
3d 21h
began December 15, 2018
Rank in state
48th/57
2279th of 2,798 US

Compared with CA, the US and 2017

Sacramento County, CA average hours without power per customer compared with state and national averages, 2018Sacramento County 1.1 hours, California average 3.7 hours, US average 5.6 hours, Sacramento County, 2017 2.5 hoursSacramento CountySacramento County1.1hCalifornia averageCalifornia average3.7hUS averageUS average5.6hSacramento County, 2017Sacramento County, 2…2.5h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Sacramento County, CA customer-hours without power by month, 2018Jan 66, Feb 12K, Mar 55K, Apr 81K, May 58K, Jun 94K, Jul 78K, Aug 61K, Sep 57K, Oct 72K, Nov 71K, Dec 36K025k50k75k100k66Jan12KFeb55KMar81KApr58KMay94KJun78KJul61KAug57KSep72KOct71KNov36KDec
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Customer-hours; June was the worst month.

Sacramento County year over year

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Sacramento County, CA: average hours without power per customer by year2015: 0.9h; 2016: 1.2h; 2017: 2.5h; 2018: 1.1h, coverage 91%; 2019: 2.7h, coverage 93%; 2020: 1.3h, coverage 94%; 2021: 5.4h, coverage 95%; 2022: 1.4h, coverage 95%; 2023: 14.4h; 2024: 4.8h; 2025: 1.3h0510150%50%100%0.9h20151.2h20162.5h20171.1h20182.7h20191.3h20205.4h20211.4h202214.4h20234.8h20241.3h2025
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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 Sacramento County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 16, 2018 14:30April 19, 2018 09:152d 18h39,47725K
2July 22, 2018 15:00July 23, 2018 03:4512h 45m17,06522K
3April 25, 2018 14:45April 26, 2018 07:3016h 45m16,70613K
4June 21, 2018 10:30June 24, 2018 06:152d 19h15,73017K
5June 2, 2018 13:15June 3, 2018 05:3016h 15m15,2398,662
6June 3, 2018 15:15June 4, 2018 02:0010h 45m14,79619K
7July 17, 2018 13:00July 18, 2018 07:4518h 45m13,2895,203
8November 22, 2018 15:45November 25, 2018 12:152d 20h11,29119K
9May 10, 2018 16:00May 13, 2018 03:002d 11h11,22424K
10November 26, 2018 03:15November 27, 2018 03:451d9,3066,207

Outage episodes by size in 2018: 268 reached 100+ customers, 95 reached 1,000+ customers, 9 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 Sacramento 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
WAPA-- Western Area Power Administration-----
Sacramento Municipal Util Dist-----
SMUD-----

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 ÷ 625,566 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. Sacramento County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Sacramento 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/sacramento-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON