massoutage

County annual report · FIPS 23013

2025 Knox County, ME Power Outage Report

In 2025, customers in Knox County, ME went without power for an average of 13.3 hours, a total of 204K customer-hours (Maine average 6.3 hours). That ranks 4th worst of 16 Maine counties and 579th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
13.3
15,343 customers
Customer-hours out
204K
Peak customers out
16,222
Outages ≥1,000 out
17
1 of 10,000+ · 549 total
Longest outage
2d 3h
began December 19, 2025
Rank in state
4th/16
579th of 3,000 US

Compared with ME, the US and 2024

Knox County, ME average hours without power per customer compared with state and national averages, 2025Knox County 13.3 hours, Maine average 6.3 hours, US average 5.9 hours, Knox County, 2024 36.3 hoursKnox CountyKnox County13.3hMaine averageMaine average6.3hUS averageUS average5.9hKnox County, 2024Knox County, 202436.3h
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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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Knox County, ME customer-hours without power by month, 2025Jan 12K, Feb 596, Mar 2,273, Apr 4,623, May 29K, Jun 16K, Jul 7,310, Aug 23K, Sep 1,985, Oct 1,873, Nov 3,251, Dec 103K050k100k150k12KJan596Feb2,273Mar4,623Apr29KMay16KJun7,310Jul23KAug1,985Sep1,873Oct3,251Nov103KDec
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Customer-hours; December was the worst month.

Knox County year over year

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Knox County, ME: average hours without power per customer by year2015: 2.6h; 2016: 9.1h; 2017: 49.4h; 2018: 9.1h, coverage 96%; 2019: 2.4h, coverage 96%; 2020: 61.4h, coverage 96%; 2021: 8.8h, coverage 96%; 2022: 26.4h, coverage 96%; 2023: 56.6h; 2024: 36.3h; 2025: 13.3h0204060800%50%100%2.6h20159.1h201649.4h20179.1h20182.4h201961.4h20208.8h202126.4h202256.6h202336.3h202413.3h2025
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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 Maine customers tracked each year.

Biggest outages in Knox County, 2025

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 26, 2025 08:15December 26, 2025 11:453h 30m16,22239K
2December 19, 2025 17:30December 21, 2025 21:002d 3h6,74454K
3May 22, 2025 18:15May 22, 2025 21:453h 30m6,20411K
4May 31, 2025 10:45May 31, 2025 13:302h 45m3,364864
5January 20, 2025 17:00January 20, 2025 20:003h3,34910K
6May 19, 2025 07:00May 19, 2025 08:301h 30m3,0594,589
7June 27, 2025 21:45June 28, 2025 01:003h 15m2,1146,691
8July 20, 2025 18:45July 21, 2025 03:008h 15m2,0952,657
9December 5, 2025 00:00December 5, 2025 22:0022h1,8619,229
10June 20, 2025 18:00June 21, 2025 18:301d1,5614,600

Outage episodes by size in 2025: 69 reached 100+ customers, 17 reached 1,000+ customers, 1 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 Knox County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Central Maine Power Co202431.6 hrs3.373.6 hrs1.83
Fox Islands Electric Coop, Inc-----
Matinicus Plantation Elec Co-----

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 Maine's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 15,343 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. Knox County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Knox County, ME 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/maine/knox-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON