massoutage

County annual report · FIPS 06061

2015 Placer County, CA Power Outage Report

In 2015, customers in Placer County, CA went without power for an average of 0.0 hours, a total of 450 customer-hours (California average 3.1 hours). That ranks 18th worst of 23 California counties and 2441st of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
187,525 customers
Customer-hours out
450
Peak customers out
129
Outages ≥1,000 out
0
0 of 10,000+ · 33 total
Longest outage
8h 15m
began October 26, 2015
Rank in state
18th/23
2441st of 2,484 US

Compared with CA, the US

Placer County, CA average hours without power per customer compared with state and national averages, 2015Placer County 0.0 hours, California average 3.1 hours, US average 2.9 hoursPlacer CountyPlacer County0.0hCalifornia averageCalifornia average3.1hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Placer County, CA customer-hours without power by month, 2015Jan 2, Feb 3, Mar 12, Apr 14, May 9, Jun 191, Jul 5, Aug 21, Sep 31, Oct 28, Nov 0, Dec 1360501001502002Jan3Feb12Mar14Apr9May191Jun5Jul21Aug31Sep28Oct0Nov136Dec
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Customer-hours; June was the worst month.

Placer County year over year

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Placer County, CA: average hours without power per customer by year2015: 0.0h; 2016: 0.0h; 2017: 0.0h; 2018: 1.3h, coverage 91%; 2019: 21.4h, coverage 93%; 2020: 8.4h, coverage 94%; 2021: 11.4h, coverage 95%; 2022: 9.4h, coverage 95%; 2023: 6.9h; 2024: 14.0h; 2025: 5.2h01020300%50%100%0.0h20150.0h20160.0h20171.3h201821.4h20198.4h202011.4h20219.4h20226.9h202314.0h20245.2h2025
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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 Placer County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 13, 2015 18:45December 13, 2015 21:302h 45m129132
2June 25, 2015 15:15June 25, 2015 18:002h 45m99138
3September 2, 2015 21:45September 2, 2015 23:151h 30m2230
4June 30, 2015 18:15June 30, 2015 22:454h 30m2048
5October 13, 2015 16:45October 13, 2015 17:3045m2015
6May 3, 2015 16:00May 3, 2015 17:001h86
7June 14, 2015 01:45June 14, 2015 03:001h 15m76
8April 21, 2015 14:30April 21, 2015 18:153h 45m614
9August 12, 2015 02:45August 12, 2015 05:453h411
10August 12, 2015 06:45August 12, 2015 09:302h 45m49

Outage episodes by size in 2015: 1 reached 100+ customers, 0 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 Placer 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
Liberty Utilities20156.0 hrs2.016.0 hrs2.01
Truckee Donner P U D201521.1 hrs2.34--
WAPA-- Western Area Power Administration-----
Sacramento Municipal Util Dist-----
City of Roseville - (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 ÷ 187,525 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. Placer County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Placer 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/placer-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON