massoutage

County annual report · FIPS 41023

2025 Grant County, OR Power Outage Report

In 2025, customers in Grant County, OR went without power for an average of 3.5 hours, a total of 16K customer-hours (Oregon average 6.0 hours). That ranks 25th worst of 35 Oregon counties and 1894th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
3.5
4,648 customers
Customer-hours out
16K
Peak customers out
4,023
Outages ≥1,000 out
1
0 of 10,000+ · 123 total
Longest outage
11h
began April 25, 2025
Rank in state
25th/35
1894th of 3,000 US

Compared with OR, the US and 2024

Grant County, OR average hours without power per customer compared with state and national averages, 2025Grant County 3.5 hours, Oregon average 6.0 hours, US average 5.9 hours, Grant County, 2024 5.8 hoursGrant CountyGrant County3.5hOregon averageOregon average6.0hUS averageUS average5.9hGrant County, 2024Grant County, 20245.8h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Grant County, OR customer-hours without power by month, 2025Jan 85, Feb 182, Mar 101, Apr 61, May 487, Jun 710, Jul 2,292, Aug 354, Sep 1,597, Oct 10K, Nov 42, Dec 13505k10k15k85Jan182Feb101Mar61Apr487May710Jun2,292Jul354Aug1,597Sep10KOct42Nov135Dec
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Customer-hours; October was the worst month.

Grant County year over year

CSVJSON
Grant County, OR: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 0.0h, coverage 75%; 2019: 0.1h, coverage 86%; 2020: 4.2h, coverage 90%; 2021: 6.1h, coverage 90%; 2022: 6.0h, coverage 90%; 2023: 2.6h; 2024: 5.8h; 2025: 3.5h024680%50%100%n/a2015n/a20160.0h20170.0h20180.1h20194.2h20206.1h20216.0h20222.6h20235.8h20243.5h2025
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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 Oregon customers tracked each year.

Biggest outages in Grant County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 13, 2025 11:00October 13, 2025 14:453h 45m4,02310K
2July 2, 2025 03:30July 2, 2025 07:304h4831,095
3July 14, 2025 02:00July 14, 2025 09:157h 15m483609
4September 21, 2025 20:30September 22, 2025 00:454h 15m333669
5September 22, 2025 16:15September 22, 2025 20:154h223498
6May 15, 2025 19:15May 16, 2025 03:308h 15m119451
7June 25, 2025 03:30June 25, 2025 14:1510h 45m110649
8August 6, 2025 18:45August 6, 2025 21:453h104312
9December 24, 2025 16:00December 24, 2025 17:151h 15m93107
10July 4, 2025 23:45July 5, 2025 05:155h 30m64332

Outage episodes by size in 2025: 8 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 Grant County reported on EIA Form 861 for 2025, 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
Columbia Power Coop Assn Inc20181.6 hrs-1.6 hrs-
Central Electric Coop Inc - (OR)-----
Oregon Trail El Cons Coop, Inc-----

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 Oregon's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,648 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. Grant County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Grant County, OR annual power outage report, 2025, 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/2025/oregon/grant-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON