massoutage

County annual report · FIPS 06057

2019 Nevada County, CA Power Outage Report

In 2019, customers in Nevada County, CA went without power for an average of 123.3 hours, a total of 6.4M customer-hours (California average 9.6 hours). That ranks 7th worst of 57 California counties and 22nd of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
123.3
52,251 customers
Customer-hours out
6.4M
Peak customers out
53,330
Outages ≥1,000 out
46
12 of 10,000+ · 498 total
Longest outage
6d 23h
began February 26, 2019
Rank in state
7th/57
22nd of 2,945 US

Compared with CA, the US and 2018

Nevada County, CA average hours without power per customer compared with state and national averages, 2019Nevada County 123.3 hours, California average 9.6 hours, US average 4.7 hours, Nevada County, 2018 2.3 hoursNevada CountyNevada County123.3hCalifornia averageCalifornia average9.6hUS averageUS average4.7hNevada County, 2018Nevada County, 20182.3h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Nevada County, CA customer-hours without power by month, 2019Jan 15K, Feb 78K, Mar 24K, Apr 16K, May 29K, Jun 28K, Jul 16K, Aug 15K, Sep 340K, Oct 5.8M, Nov 65K, Dec 21K02M4M6M15KJan78KFeb24KMar16KApr29KMay28KJun16KJul15KAug340KSep5.8MOct65KNov21KDec
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Customer-hours; October was the worst month.

Nevada County year over year

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Nevada County, CA: average hours without power per customer by year2015: 0.0h; 2016: no data; 2017: 0.0h; 2018: 2.3h, coverage 91%; 2019: 123.3h, coverage 93%; 2020: 53.6h, coverage 94%; 2021: 55.7h, coverage 95%; 2022: 50.7h, coverage 95%; 2023: 47.5h; 2024: 22.7h; 2025: 11.7h0501001500%50%100%0.0h2015n/a20160.0h20172.3h2018123.3h201953.6h202055.7h202150.7h202247.5h202322.7h202411.7h2025
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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 Nevada County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 29, 2019 10:45November 1, 2019 21:453d 11h53,3301.3M
2October 9, 2019 14:15October 9, 2019 19:004h 45m44,195199K
3October 9, 2019 21:30October 10, 2019 01:304h44,195144K
4October 10, 2019 20:15October 12, 2019 20:001d 23h44,115902K
5October 26, 2019 23:45October 27, 2019 05:456h44,081125K
6October 10, 2019 02:30October 10, 2019 03:0030m43,83322K
7October 10, 2019 05:30October 10, 2019 16:0010h 30m43,819442K
8October 10, 2019 19:15October 10, 2019 19:3015m43,81911K
9October 27, 2019 06:30October 29, 2019 08:002d 1h41,9801.6M
10October 22, 2019 15:15October 26, 2019 02:153d 11h41,958968K

Outage episodes by size in 2019: 119 reached 100+ customers, 46 reached 1,000+ customers, 12 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 Nevada County reported on EIA Form 861 for 2019, 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
Liberty Utilities20184.8 hrs2.194.8 hrs2.19
Truckee Donner P U D20185.0 hrs0.88--

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 93% of California's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 52,251 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. Nevada County has data for 2015, 2017–2025.

Cite this report

MassOutage (massoutage.com), Nevada County, CA annual power outage report, 2019, 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/2019/california/nevada-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON