massoutage

County annual report · FIPS 16081

2019 Teton County, ID Power Outage Report

In 2019, customers in Teton County, ID went without power for an average of 28.1 hours, a total of 50K customer-hours (Idaho average 2.2 hours). That ranks 1st worst of 44 Idaho counties and 125th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
28.1
1,775 customers
Customer-hours out
50K
Peak customers out
7,112
Outages ≥1,000 out
1
0 of 10,000+ · 364 total
Longest outage
16h 45m
began September 17, 2019
Rank in state
1st/44
125th of 2,945 US

Compared with ID, the US and 2018

Teton County, ID average hours without power per customer compared with state and national averages, 2019Teton County 28.1 hours, Idaho average 2.2 hours, US average 4.7 hours, Teton County, 2018 13.5 hoursTeton CountyTeton County28.1hIdaho averageIdaho average2.2hUS averageUS average4.7hTeton County, 2018Teton County, 201813.5h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Teton County, ID customer-hours without power by month, 2019Jan 243, Feb 203, Mar 179, Apr 608, May 1,341, Jun 2,992, Jul 2,691, Aug 1,105, Sep 1,557, Oct 938, Nov 38K, Dec 175010k20k30k40k243Jan203Feb179Mar608Apr1,341May2,992Jun2,691Jul1,105Aug1,557Sep938Oct38KNov175Dec
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Customer-hours; November was the worst month.

Teton County year over year

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Teton County, ID: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.6h; 2018: 13.5h, coverage 91%; 2019: 28.1h, coverage 92%; 2020: 4.3h, coverage 95%; 2021: 5.5h, coverage 90%; 2022: 13.2h, coverage 91%; 2023: 7.0h; 2024: 16.9h; 2025: 12.5h01020300%50%100%n/a2015n/a20160.6h201713.5h201828.1h20194.3h20205.5h202113.2h20227.0h202316.9h202412.5h2025
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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 Teton County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 2, 2019 05:00November 2, 2019 10:155h 15m7,11237K
2July 13, 2019 01:15July 13, 2019 02:0045m894584
3June 19, 2019 07:15June 19, 2019 08:451h 30m738540
4June 2, 2019 20:30June 2, 2019 22:452h 15m7071,507
5May 17, 2019 03:15May 17, 2019 05:001h 45m506886
6October 26, 2019 14:15October 26, 2019 15:451h 30m261164
7July 30, 2019 22:00July 30, 2019 22:3030m25186
8September 10, 2019 10:00September 10, 2019 12:452h 45m251367
9July 9, 2019 12:45July 9, 2019 17:004h 15m231687
10July 6, 2019 13:30July 6, 2019 18:305h210862

Outage episodes by size in 2019: 20 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 Teton County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PacifiCorp20183.2 hrs1.622.0 hrs1.25
Fall River Rural Elec Coop Inc20184.6 hrs2.314.2 hrs2.11
Bonneville Power Administration-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 92% of Idaho's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,775 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. Teton County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Teton County, ID annual power outage report, 2019, 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/2019/idaho/teton-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON