massoutage

County annual report · FIPS 16003

2018 Adams County, ID Power Outage Report

In 2018, customers in Adams County, ID went without power for an average of 14.1 hours, a total of 30K customer-hours (Idaho average 2.0 hours). That ranks 7th worst of 44 Idaho counties and 399th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
14.1
2,117 customers
Customer-hours out
30K
Peak customers out
2,029
Outages ≥1,000 out
3
0 of 10,000+ · 314 total
Longest outage
19h 15m
began October 6, 2018
Rank in state
7th/44
399th of 2,798 US

Compared with ID, the US and 2017

Adams County, ID average hours without power per customer compared with state and national averages, 2018Adams County 14.1 hours, Idaho average 2.0 hours, US average 5.6 hours, Adams County, 2017 17.7 hoursAdams CountyAdams County14.1hIdaho averageIdaho average2.0hUS averageUS average5.6hAdams County, 2017Adams County, 201717.7h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Adams County, ID customer-hours without power by month, 2018Jan 2,267, Feb 1,453, Mar 1,085, Apr 2,497, May 1,847, Jun 1,004, Jul 658, Aug 1,524, Sep 2,116, Oct 7,687, Nov 7,134, Dec 53402k4k6k8k2,267Jan1,453Feb1,085Mar2,497Apr1,847May1,004Jun658Jul1,524Aug2,116Sep7,687Oct7,134Nov534Dec
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Customer-hours; October was the worst month.

Adams County year over year

CSVJSON
Adams County, ID: average hours without power per customer by year2015: 3.9h; 2016: 14.5h; 2017: 17.7h; 2018: 14.1h, coverage 91%; 2019: 16.1h, coverage 92%; 2020: 9.5h, coverage 95%; 2021: 12.3h, coverage 90%; 2022: 1.2h, coverage 91%; 2023: 4.5h; 2024: 13.0h; 2025: 3.6h051015200%50%100%3.9h201514.5h201617.7h201714.1h201816.1h20199.5h202012.3h20211.2h20224.5h202313.0h20243.6h2025
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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 Adams 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 19:15November 29, 2018 22:453h 30m2,0291,025
2October 9, 2018 16:45October 9, 2018 21:004h 15m2,0213,245
3October 9, 2018 22:00October 10, 2018 06:158h 15m1,0371,641
4January 19, 2018 16:00January 19, 2018 17:151h 15m681639
5September 19, 2018 17:15September 19, 2018 18:0045m403302
6April 11, 2018 16:45April 11, 2018 22:456h402523
7November 3, 2018 19:00November 4, 2018 08:4513h 45m4025,108
8August 23, 2018 03:00August 23, 2018 04:451h 45m391684
9November 30, 2018 16:30November 30, 2018 17:0030m308154
10August 31, 2018 23:45September 1, 2018 07:307h 45m2481,126

Outage episodes by size in 2018: 25 reached 100+ customers, 3 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 Adams 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 ÷ 2,117 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. Adams County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Adams 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/adams-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON