massoutage

County annual report · FIPS 06051

2017 Mono County, CA Power Outage Report

In 2017, customers in Mono County, CA went without power for an average of 16.9 hours, a total of 94K customer-hours (California average 2.2 hours). That ranks 1st worst of 47 California counties and 328th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
16.9
5,551 customers
Customer-hours out
94K
Peak customers out
2,665
Outages ≥1,000 out
9
0 of 10,000+ · 161 total
Longest outage
4d 16h
began February 12, 2017
Rank in state
1st/47
328th of 2,786 US

Compared with CA, the US and 2016

Mono County, CA average hours without power per customer compared with state and national averages, 2017Mono County 16.9 hours, California average 2.2 hours, US average 7.4 hours, Mono County, 2016 14.6 hoursMono CountyMono County16.9hCalifornia averageCalifornia average2.2hUS averageUS average7.4hMono County, 2016Mono County, 201614.6h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Mono County, CA customer-hours without power by month, 2017Jan 23K, Feb 17K, Mar 19, Apr 1,146, May 722, Jun 5,478, Jul 6,816, Aug 5,838, Sep 6,464, Oct 9,384, Nov 3,730, Dec 14K010k20k30k23KJan17KFeb19Mar1,146Apr722May5,478Jun6,816Jul5,838Aug6,464Sep9,384Oct3,730Nov14KDec
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Customer-hours; January was the worst month.

Mono County year over year

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Mono County, CA: average hours without power per customer by year2015: 15.4h; 2016: 14.6h; 2017: 16.9h; 2018: 18.9h, coverage 91%; 2019: 65.2h, coverage 93%; 2020: 33.6h, coverage 94%; 2021: 36.4h, coverage 95%; 2022: 29.1h, coverage 95%; 2023: 132.9h; 2024: 34.2h; 2025: 107.1h0501001500%50%100%15.4h201514.6h201616.9h201718.9h201865.2h201933.6h202036.4h202129.1h2022132.9h202334.2h2024107.1h2025
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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 Mono County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1February 12, 2017 04:00February 16, 2017 20:454d 16h2,6655,272
2February 7, 2017 11:30February 12, 2017 01:304d 14h2,1529,975
3July 26, 2017 16:30July 26, 2017 19:152h 45m2,0201,349
4September 20, 2017 09:45September 20, 2017 11:151h 30m1,8261,723
5November 26, 2017 19:15November 26, 2017 21:001h 45m1,7943,106
6December 20, 2017 07:15December 20, 2017 15:458h 30m1,7602,186
7January 11, 2017 08:30January 12, 2017 02:1517h 45m1,75118K
8August 25, 2017 16:45August 25, 2017 17:3045m1,371343
9August 15, 2017 16:45August 16, 2017 00:007h 15m1,0632,310
10October 10, 2017 15:15October 11, 2017 00:008h 45m9615,281

Outage episodes by size in 2017: 50 reached 100+ customers, 9 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 Mono County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southern California Edison Co20172.3 hrs1.191.5 hrs0.87
Liberty Utilities201726.6 hrs3.9712.9 hrs2.86
Valley Electric Assn, Inc20172.1 hrs1.5564 min1.17

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 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 5,551 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. Mono County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Mono County, CA annual power outage report, 2017, 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/2017/california/mono-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON