massoutage

County annual report · FIPS 06011

2025 Colusa County, CA Power Outage Report

In 2025, customers in Colusa County, CA went without power for an average of 10.5 hours, a total of 105K customer-hours (California average 7.6 hours). That ranks 19th worst of 57 California counties and 763rd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
10.5
9,970 customers
Customer-hours out
105K
Peak customers out
7,082
Outages ≥1,000 out
7
0 of 10,000+ · 436 total
Longest outage
4d 4h
began January 13, 2025
Rank in state
19th/57
763rd of 3,000 US

Compared with CA, the US and 2024

Colusa County, CA average hours without power per customer compared with state and national averages, 2025Colusa County 10.5 hours, California average 7.6 hours, US average 5.9 hours, Colusa County, 2024 17.6 hoursColusa CountyColusa County10.5hCalifornia averageCalifornia average7.6hUS averageUS average5.9hColusa County, 2024Colusa County, 202417.6h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Colusa County, CA customer-hours without power by month, 2025Jan 3,768, Feb 835, Mar 2,369, Apr 9,901, May 3,169, Jun 29K, Jul 11K, Aug 9,280, Sep 4,605, Oct 9,608, Nov 14K, Dec 7,011010k20k30k3,768Jan835Feb2,369Mar9,901Apr3,169May29KJun11KJul9,280Aug4,605Sep9,608Oct14KNov7,011Dec
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Customer-hours; June was the worst month.

Colusa County year over year

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Colusa County, CA: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: 1.8h, coverage 91%; 2019: 17.9h, coverage 93%; 2020: 5.1h, coverage 94%; 2021: 17.2h, coverage 95%; 2022: 7.3h, coverage 95%; 2023: 5.6h; 2024: 17.6h; 2025: 10.5h051015200%50%100%n/a2015n/a2016n/a20171.8h201817.9h20195.1h202017.2h20217.3h20225.6h202317.6h202410.5h2025
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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 California customers tracked each year.

Biggest outages in Colusa County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 25, 2025 00:15November 25, 2025 12:4512h 30m7,0829,185
2October 3, 2025 08:45October 4, 2025 02:3017h 45m4,3737,062
3December 5, 2025 14:15December 6, 2025 05:0014h 45m2,6703,641
4April 16, 2025 01:00April 16, 2025 06:455h 45m2,5048,521
5August 26, 2025 16:00August 27, 2025 10:4518h 45m2,2233,476
6September 25, 2025 04:00September 25, 2025 06:152h 15m1,3042,609
7January 3, 2025 16:15January 5, 2025 06:001d 13h1,2342,286
8June 20, 2025 23:30June 22, 2025 19:451d 20h77828K
9December 15, 2025 00:15December 15, 2025 04:304h 15m7221,192
10July 15, 2025 02:45July 16, 2025 13:301d 10h5258,481

Outage episodes by size in 2025: 36 reached 100+ customers, 7 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 Colusa 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
Pacific Gas & Electric Co.20248.5 hrs2.154.6 hrs1.82
WAPA-- Western Area 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 n/a of California's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 9,970 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. Colusa County has data for 2018–2025.

Cite this report

MassOutage (massoutage.com), Colusa County, CA 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/california/colusa-county

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