massoutage

County annual report · FIPS 06065

2017 Riverside County, CA Power Outage Report

In 2017, customers in Riverside County, CA went without power for an average of 3.2 hours, a total of 2.7M customer-hours (California average 2.2 hours). That ranks 8th worst of 47 California counties and 1292nd of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
3.2
853,923 customers
Customer-hours out
2.7M
Peak customers out
15,795
Outages ≥1,000 out
158
5 of 10,000+ · 397 total
Longest outage
11d 20h
began September 25, 2017
Rank in state
8th/47
1292nd of 2,786 US

Compared with CA, the US and 2016

Riverside County, CA average hours without power per customer compared with state and national averages, 2017Riverside County 3.2 hours, California average 2.2 hours, US average 7.4 hours, Riverside County, 2016 3.5 hoursRiverside CountyRiverside County3.2hCalifornia averageCalifornia average2.2hUS averageUS average7.4hRiverside County, 2016Riverside County, 20…3.5h
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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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Riverside County, CA customer-hours without power by month, 2017Jan 181K, Feb 161K, Mar 191K, Apr 161K, May 135K, Jun 245K, Jul 256K, Aug 354K, Sep 318K, Oct 244K, Nov 45K, Dec 408K0200k400k600k181KJan161KFeb191KMar161KApr135KMay245KJun256KJul354KAug318KSep244KOct45KNov408KDec
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Customer-hours; December was the worst month.

Riverside County year over year

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Riverside County, CA: average hours without power per customer by year2015: 3.2h; 2016: 3.5h; 2017: 3.2h; 2018: 3.3h, coverage 91%; 2019: 3.8h, coverage 93%; 2020: 4.4h, coverage 94%; 2021: 5.5h, coverage 95%; 2022: 4.4h, coverage 95%; 2023: 3.5h; 2024: 4.3h; 2025: 12.0h0510150%50%100%3.2h20153.5h20163.2h20173.3h20183.8h20194.4h20205.5h20214.4h20223.5h20234.3h202412.0h2025
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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 Riverside County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 11, 2017 06:30July 11, 2017 07:301h15,7959,257
2April 6, 2017 13:00April 7, 2017 21:151d 8h14,44526K
3December 5, 2017 14:45December 9, 2017 17:454d 3h12,207244K
4September 21, 2017 15:15September 22, 2017 02:1511h12,02015K
5July 8, 2017 03:15July 9, 2017 05:301d 2h10,92631K
6July 31, 2017 04:30August 5, 2017 14:005d 9h8,797101K
7January 20, 2017 08:45January 26, 2017 03:305d 18h8,77850K
8February 11, 2017 01:30February 11, 2017 11:009h 30m8,13721K
9December 1, 2017 15:30December 3, 2017 02:451d 11h8,09833K
10August 29, 2017 22:00September 2, 2017 13:303d 15h8,025136K

Outage episodes by size in 2017: 292 reached 100+ customers, 158 reached 1,000+ customers, 5 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 Riverside 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
Arizona Public Service Co20171.9 hrs0.9175 min0.75
Imperial Irrigation District201764 min0.7049 min0.61
Anza Electric Coop Inc201729.8 hrs3.2529.5 hrs3.18
City of Riverside - (CA)201748 min0.6643 min0.66
WAPA-- Western Area Power Administration-----
City of Banning - (CA)-----
City of Corona - (CA)-----
City of Moreno Valley - (CA)-----

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 ÷ 853,923 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. Riverside County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Riverside 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/riverside-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON