massoutage

County annual report · FIPS 16085

2018 Valley County, ID Power Outage Report

In 2018, customers in Valley County, ID went without power for an average of 5.9 hours, a total of 35K customer-hours (Idaho average 2.0 hours). That ranks 14th worst of 44 Idaho counties and 932nd of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
5.9
5,992 customers
Customer-hours out
35K
Peak customers out
1,812
Outages ≥1,000 out
1
0 of 10,000+ · 63 total
Longest outage
10d 19h
began October 4, 2018
Rank in state
14th/44
932nd of 2,798 US

Compared with ID, the US and 2017

Valley County, ID average hours without power per customer compared with state and national averages, 2018Valley County 5.9 hours, Idaho average 2.0 hours, US average 5.6 hours, Valley County, 2017 16.6 hoursValley CountyValley County5.9hIdaho averageIdaho average2.0hUS averageUS average5.6hValley County, 2017Valley County, 201716.6h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Valley County, ID customer-hours without power by month, 2018Jan 1,268, Feb 821, Mar 1,077, Apr 302, May 6,631, Jun 9,884, Jul 594, Aug 1,219, Sep 1,676, Oct 8,951, Nov 271, Dec 2,44602.5k5k7.5k10k1,268Jan821Feb1,077Mar302Apr6,631May9,884Jun594Jul1,219Aug1,676Sep8,951Oct271Nov2,446Dec
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Customer-hours; June was the worst month.

Valley County year over year

CSVJSON
Valley County, ID: average hours without power per customer by year2015: 1.4h; 2016: 5.6h; 2017: 16.6h; 2018: 5.9h, coverage 91%; 2019: 11.5h, coverage 92%; 2020: 13.4h, coverage 95%; 2021: 10.7h, coverage 90%; 2022: 6.3h, coverage 91%; 2023: 12.1h; 2024: 36.5h; 2025: 34.3h0102030400%50%100%1.4h20155.6h201616.6h20175.9h201811.5h201913.4h202010.7h20216.3h202212.1h202336.5h202434.3h2025
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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 Idaho customers tracked each year.

Biggest outages in Valley County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 18, 2018 08:15June 18, 2018 15:157h1,8127,995
2May 26, 2018 03:45May 26, 2018 11:458h7845,162
3March 18, 2018 09:45March 18, 2018 13:003h 15m688874
4May 11, 2018 18:30May 11, 2018 19:1545m683330
5November 27, 2018 23:30November 27, 2018 23:4515m536134
6December 5, 2018 08:30December 5, 2018 15:006h 30m4071,649
7September 12, 2018 17:15September 12, 2018 20:303h 15m290559
8October 15, 2018 22:00October 15, 2018 22:4545m256137
9October 4, 2018 20:30October 15, 2018 16:0010d 19h2478,661
10February 11, 2018 08:15February 11, 2018 08:3015m23459

Outage episodes by size in 2018: 19 reached 100+ customers, 1 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 Valley 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
Idaho Power Co20182.3 hrs1.012.3 hrs1.00

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 Idaho's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 5,992 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. Valley County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Valley County, ID 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/idaho/valley-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON