massoutage

County annual report · FIPS 23011

2021 Kennebec County, ME Power Outage Report

In 2021, customers in Kennebec County, ME went without power for an average of 4.4 hours, a total of 388K customer-hours (Maine average 6.4 hours). That ranks 13th worst of 16 Maine counties and 1449th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
4.4
87,760 customers
Customer-hours out
388K
Peak customers out
7,577
Outages ≥1,000 out
41
0 of 10,000+ · 952 total
Longest outage
2d 14h
began June 30, 2021
Rank in state
13th/16
1449th of 2,974 US

Compared with ME, the US and 2020

Kennebec County, ME average hours without power per customer compared with state and national averages, 2021Kennebec County 4.4 hours, Maine average 6.4 hours, US average 8.9 hours, Kennebec County, 2020 38.3 hoursKennebec CountyKennebec County4.4hMaine averageMaine average6.4hUS averageUS average8.9hKennebec County, 2020Kennebec County, 202038.3h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Kennebec County, ME customer-hours without power by month, 2021Jan 35K, Feb 20K, Mar 66K, Apr 12K, May 11K, Jun 75K, Jul 30K, Aug 29K, Sep 34K, Oct 46K, Nov 8,148, Dec 22K020k40k60k80k35KJan20KFeb66KMar12KApr11KMay75KJun30KJul29KAug34KSep46KOct8,148Nov22KDec
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Customer-hours; June was the worst month.

Kennebec County year over year

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Kennebec County, ME: average hours without power per customer by year2015: 1.6h; 2016: 6.9h; 2017: 41.9h; 2018: 4.7h, coverage 96%; 2019: 1.4h, coverage 96%; 2020: 38.3h, coverage 96%; 2021: 4.4h, coverage 96%; 2022: 10.6h, coverage 96%; 2023: 55.4h; 2024: 13.9h; 2025: 2.8h02040600%50%100%1.6h20156.9h201641.9h20174.7h20181.4h201938.3h20204.4h202110.6h202255.4h202313.9h20242.8h2025
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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 Kennebec County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 28, 2021 19:15June 29, 2021 00:305h 15m7,57719K
2September 25, 2021 06:45September 25, 2021 15:459h6,9838,200
3June 19, 2021 19:15June 20, 2021 23:301d 4h5,75832K
4March 2, 2021 04:15March 3, 2021 21:001d 16h5,45429K
5October 26, 2021 14:00October 26, 2021 20:006h4,01813K
6June 15, 2021 20:30June 16, 2021 00:003h 30m3,8193,822
7February 18, 2021 23:00February 19, 2021 01:452h 45m3,7836,925
8February 8, 2021 13:30February 9, 2021 00:1510h 45m3,3464,333
9January 18, 2021 04:30January 18, 2021 15:4511h 15m2,94325K
10December 22, 2021 18:15December 23, 2021 09:3015h 15m2,6569,688

Outage episodes by size in 2021: 168 reached 100+ customers, 41 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 Kennebec County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Central Maine Power Co20215.5 hrs2.483.7 hrs2.04

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 96% of Maine's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 87,760 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. Kennebec County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Kennebec County, ME annual power outage report, 2021, 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/2021/maine/kennebec-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON