massoutage

County annual report · FIPS 06067

2017 Sacramento County, CA Power Outage Report

In 2017, customers in Sacramento County, CA went without power for an average of 2.5 hours, a total of 1.6M customer-hours (California average 2.2 hours). That ranks 11th worst of 47 California counties and 1480th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
2.5
625,566 customers
Customer-hours out
1.6M
Peak customers out
76,180
Outages ≥1,000 out
105
20 of 10,000+ · 572 total
Longest outage
12d 1h
began January 18, 2017
Rank in state
11th/47
1480th of 2,786 US

Compared with CA, the US and 2016

Sacramento County, CA average hours without power per customer compared with state and national averages, 2017Sacramento County 2.5 hours, California average 2.2 hours, US average 7.4 hours, Sacramento County, 2016 1.2 hoursSacramento CountySacramento County2.5hCalifornia averageCalifornia average2.2hUS averageUS average7.4hSacramento County, 2016Sacramento County, 2…1.2h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

CSVJSON
Sacramento County, CA customer-hours without power by month, 2017Jan 693K, Feb 165K, Mar 58K, Apr 109K, May 144K, Jun 100K, Jul 67K, Aug 63K, Sep 64K, Oct 76K, Nov 12K, Dec 9,3060200k400k600k800k693KJan165KFeb58KMar109KApr144KMay100KJun67KJul63KAug64KSep76KOct12KNov9,306Dec
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Customer-hours; January was the worst month.

Sacramento County year over year

CSVJSON
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, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 18, 2017 05:00January 30, 2017 06:3012d 1h76,180583K
2February 17, 2017 16:00February 20, 2017 03:452d 11h65,760124K
3May 2, 2017 13:45May 5, 2017 05:452d 16h40,64824K
4June 26, 2017 13:15June 30, 2017 11:303d 22h39,75336K
5April 18, 2017 00:30April 20, 2017 05:302d 5h38,29026K
6January 1, 2017 00:00January 5, 2017 07:304d 7h28,50460K
7March 5, 2017 18:45March 8, 2017 06:152d 11h25,29119K
8April 26, 2017 10:00April 27, 2017 11:301d 1h18,75229K
9June 21, 2017 14:45June 23, 2017 11:001d 20h17,34413K
10May 12, 2017 12:30May 13, 2017 10:0021h 30m16,47917K

Outage episodes by size in 2017: 231 reached 100+ customers, 105 reached 1,000+ customers, 20 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 2017, 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.20176.2 hrs1.551.9 hrs0.96
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 n/a of California's customers in 2017; 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, 2017, 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/2017/california/sacramento-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON