massoutage

County annual report · FIPS 06009

2018 Calaveras County, CA Power Outage Report

In 2018, customers in Calaveras County, CA went without power for an average of 8.7 hours, a total of 161K customer-hours (California average 3.7 hours). That ranks 10th worst of 57 California counties and 645th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
8.7
18,417 customers
Customer-hours out
161K
Peak customers out
4,156
Outages ≥1,000 out
7
0 of 10,000+ · 319 total
Longest outage
2d 19h
began October 15, 2018
Rank in state
10th/57
645th of 2,798 US

Compared with CA, the US

Calaveras County, CA average hours without power per customer compared with state and national averages, 2018Calaveras County 8.7 hours, California average 3.7 hours, US average 5.6 hoursCalaveras CountyCalaveras County8.7hCalifornia averageCalifornia average3.7hUS averageUS average5.6h
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Average hours without power per customer in 2018.

Month by month

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Calaveras County, CA customer-hours without power by month, 2018Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 2,458, Jul 29K, Aug 7,717, Sep 8,314, Oct 84K, Nov 21K, Dec 8,851025k50k75k100k0Jan0Feb0Mar0Apr0May2,458Jun29KJul7,717Aug8,314Sep84KOct21KNov8,851Dec
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Customer-hours; October was the worst month.

Calaveras County year over year

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Calaveras County, CA: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: 8.7h, coverage 91%; 2019: 185.6h, coverage 93%; 2020: 93.7h, coverage 94%; 2021: 124.9h, coverage 95%; 2022: 57.5h, coverage 95%; 2023: 57.1h; 2024: 47.7h; 2025: 18.0h0501001502000%50%100%n/a2015n/a2016n/a20178.7h2018185.6h201993.7h2020124.9h202157.5h202257.1h202347.7h202418.0h2025
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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 Calaveras County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 29, 2018 16:00December 1, 2018 03:301d 11h4,15612K
2October 15, 2018 00:15October 17, 2018 20:002d 19h2,78777K
3December 14, 2018 17:15December 14, 2018 23:306h 15m2,6983,492
4December 21, 2018 17:15December 21, 2018 23:005h 45m1,958562
5September 23, 2018 00:00September 23, 2018 07:157h 15m1,7771,368
6July 16, 2018 17:15July 17, 2018 05:3012h 15m1,7508,438
7August 31, 2018 20:00August 31, 2018 21:151h 15m1,1671,041
8November 22, 2018 12:30November 23, 2018 04:1515h 45m9144,701
9July 29, 2018 06:30July 30, 2018 08:301d 2h90914K
10July 19, 2018 04:15July 19, 2018 12:458h 30m6071,206

Outage episodes by size in 2018: 36 reached 100+ customers, 7 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 Calaveras 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-----

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 ÷ 18,417 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. Calaveras County has data for 2018–2025.

Cite this report

MassOutage (massoutage.com), Calaveras 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/calaveras-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON