massoutage

County annual report · FIPS 06057

2024 Nevada County, CA Power Outage Report

In 2024, customers in Nevada County, CA went without power for an average of 22.7 hours, a total of 1.2M customer-hours (California average 6.1 hours). That ranks 11th worst of 57 California counties and 440th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
22.7
52,251 customers
Customer-hours out
1.2M
Peak customers out
18,388
Outages ≥1,000 out
60
1 of 10,000+ · 547 total
Longest outage
5d 13h
began March 1, 2024
Rank in state
11th/57
440th of 2,990 US

Compared with CA, the US and 2023

Nevada County, CA average hours without power per customer compared with state and national averages, 2024Nevada County 22.7 hours, California average 6.1 hours, US average 12.6 hours, Nevada County, 2023 47.5 hoursNevada CountyNevada County22.7hCalifornia averageCalifornia average6.1hUS averageUS average12.6hNevada County, 2023Nevada County, 202347.5h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Nevada County, CA customer-hours without power by month, 2024Jan 14K, Feb 648K, Mar 163K, Apr 23K, May 14K, Jun 33K, Jul 60K, Aug 49K, Sep 36K, Oct 50K, Nov 50K, Dec 45K0200k400k600k800k14KJan648KFeb163KMar23KApr14KMay33KJun60KJul49KAug36KSep50KOct50KNov45KDec
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Customer-hours; February was the worst month.

Nevada County year over year

CSVJSON
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, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1February 4, 2024 23:00February 10, 2024 04:005d 5h18,388635K
2March 1, 2024 14:00March 7, 2024 03:305d 13h6,053141K
3October 24, 2024 15:15October 25, 2024 05:1514h4,5012,747
4December 14, 2024 07:30December 16, 2024 01:001d 17h4,32535K
5July 7, 2024 21:45July 8, 2024 05:458h4,3137,286
6July 6, 2024 22:45July 7, 2024 08:309h 45m4,15620K
7November 20, 2024 16:30November 21, 2024 06:1513h 45m3,6444,461
8October 4, 2024 14:45October 6, 2024 16:002d 1h3,6024,995
9November 23, 2024 02:15November 24, 2024 04:301d 2h3,54023K
10July 3, 2024 23:15July 4, 2024 20:1521h3,4264,997

Outage episodes by size in 2024: 165 reached 100+ customers, 60 reached 1,000+ customers, 1 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 2024, 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
Liberty Utilities202412.4 hrs2.578.3 hrs2.37
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 n/a of California's customers in 2024; 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, 2024, 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/2024/california/nevada-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON