massoutage

County annual report · FIPS 16001

2024 Ada County, ID Power Outage Report

In 2024, customers in Ada County, ID went without power for an average of 1.6 hours, a total of 405K customer-hours (Idaho average 4.6 hours). That ranks 41st worst of 43 Idaho counties and 2539th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
1.6
256,537 customers
Customer-hours out
405K
Peak customers out
14,240
Outages ≥1,000 out
59
2 of 10,000+ · 566 total
Longest outage
1d 5h
began March 12, 2024
Rank in state
41st/43
2539th of 2,990 US

Compared with ID, the US and 2023

Ada County, ID average hours without power per customer compared with state and national averages, 2024Ada County 1.6 hours, Idaho average 4.6 hours, US average 12.6 hours, Ada County, 2023 1.2 hoursAda CountyAda County1.6hIdaho averageIdaho average4.6hUS averageUS average12.6hAda County, 2023Ada County, 20231.2h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Ada County, ID customer-hours without power by month, 2024Jan 46K, Feb 19K, Mar 31K, Apr 22K, May 19K, Jun 17K, Jul 78K, Aug 21K, Sep 48K, Oct 26K, Nov 42K, Dec 34K020k40k60k80k46KJan19KFeb31KMar22KApr19KMay17KJun78KJul21KAug48KSep26KOct42KNov34KDec
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Customer-hours; July was the worst month.

Ada County year over year

CSVJSON
Ada County, ID: average hours without power per customer by year2015: 0.2h; 2016: 0.9h; 2017: 0.9h; 2018: 0.7h, coverage 91%; 2019: 1.0h, coverage 92%; 2020: 1.1h, coverage 95%; 2021: 1.3h, coverage 90%; 2022: 1.2h, coverage 91%; 2023: 1.2h; 2024: 1.6h; 2025: 1.1h00.511.520%50%100%0.2h20150.9h20160.9h20170.7h20181.0h20191.1h20201.3h20211.2h20221.2h20231.6h20241.1h2025
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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 Idaho customers tracked each year.

Biggest outages in Ada County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 11, 2024 18:00November 11, 2024 21:003h14,24024K
2July 24, 2024 23:15July 25, 2024 10:3011h 15m10,86360K
3February 16, 2024 00:45February 16, 2024 02:301h 45m6,9383,672
4March 21, 2024 22:15March 21, 2024 23:301h 15m4,4425,553
5June 9, 2024 07:00June 9, 2024 14:157h 15m4,1585,572
6November 14, 2024 19:15November 14, 2024 21:302h 15m3,5444,388
7July 4, 2024 01:15July 4, 2024 01:3015m3,504876
8May 29, 2024 00:00May 29, 2024 06:456h 45m3,3235,012
9January 9, 2024 20:15January 10, 2024 04:007h 45m3,07514K
10September 2, 2024 23:45September 3, 2024 12:3012h 45m2,96116K

Outage episodes by size in 2024: 182 reached 100+ customers, 59 reached 1,000+ customers, 2 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 Ada County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Idaho Power Co20246.0 hrs1.975.0 hrs1.84

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 Idaho's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 256,537 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. Ada County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Ada County, ID annual power outage report, 2024, 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/2024/idaho/ada-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON