massoutage

County annual report · FIPS 32510

2015 Carson City, NV Power Outage Report

In 2015, customers in Carson City, NV went without power for an average of 1.5 hours, a total of 46K customer-hours (Nevada average 1.0 hours). That ranks 10th worst of 15 Nevada counties and 1479th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
1.5
30,607 customers
Customer-hours out
46K
Peak customers out
4,540
Outages ≥1,000 out
4
0 of 10,000+ · 228 total
Longest outage
1d 11h
began November 13, 2015
Rank in state
10th/15
1479th of 2,484 US

Compared with NV, the US

Carson City, NV average hours without power per customer compared with state and national averages, 2015Carson City 1.5 hours, Nevada average 1.0 hours, US average 2.9 hoursCarson CityCarson City1.5hNevada averageNevada average1.0hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Carson City, NV customer-hours without power by month, 2015Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 29K, Jul 1,859, Aug 2,796, Sep 1,395, Oct 4,981, Nov 2,432, Dec 2,992010k20k30k0Jan0Feb0Mar0Apr0May29KJun1,859Jul2,796Aug1,395Sep4,981Oct2,432Nov2,992Dec
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Customer-hours; June was the worst month.

Carson City year over year

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Carson City, NV: average hours without power per customer by year2015: 1.5h; 2016: 2.6h; 2017: 1.8h; 2018: 1.4h, coverage 95%; 2019: 1.5h, coverage 95%; 2020: 1.1h, coverage 96%; 2021: 0.9h, coverage 97%; 2022: 1.4h, coverage 97%; 2023: 11.2h; 2024: 2.9h; 2025: 5.0h0510150%50%100%1.5h20152.6h20161.8h20171.4h20181.5h20191.1h20200.9h20211.4h202211.2h20232.9h20245.0h2025
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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 Nevada customers tracked each year.

Biggest outages in Carson City, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 20, 2015 08:00July 20, 2015 10:452h 45m4,5401,162
2June 28, 2015 00:45June 28, 2015 19:4519h3,45427K
3December 21, 2015 22:45December 23, 2015 00:001d 1h1,9921,228
4November 19, 2015 22:00November 19, 2015 23:301h 30m1,1051,195
5August 19, 2015 02:30August 19, 2015 04:151h 45m578444
6June 18, 2015 21:30June 19, 2015 05:007h 30m419910
7July 4, 2015 18:00July 4, 2015 20:002h36197
8October 9, 2015 03:00October 9, 2015 05:002h263526
9October 11, 2015 16:45October 12, 2015 01:158h 30m254931
10October 16, 2015 16:45October 16, 2015 18:452h254256

Outage episodes by size in 2015: 32 reached 100+ customers, 4 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 Carson City 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
Sierra Pacific Power Co20154.6 hrs1.461.9 hrs1.02

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 Nevada's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 30,607 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. Carson City has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Carson City, NV 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/nevada/carson-city

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON