massoutage

County annual report · FIPS 23031

2021 York County, ME Power Outage Report

In 2021, customers in York County, ME went without power for an average of 11.1 hours, a total of 855K customer-hours (Maine average 6.4 hours). That ranks 7th worst of 16 Maine counties and 723rd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
11.1
76,996 customers
Customer-hours out
855K
Peak customers out
13,496
Outages ≥1,000 out
50
3 of 10,000+ · 892 total
Longest outage
5d 5h
began August 1, 2021
Rank in state
7th/16
723rd of 2,974 US

Compared with ME, the US and 2020

York County, ME average hours without power per customer compared with state and national averages, 2021York County 11.1 hours, Maine average 6.4 hours, US average 8.9 hours, York County, 2020 32.7 hoursYork CountyYork County11.1hMaine averageMaine average6.4hUS averageUS average8.9hYork County, 2020York County, 202032.7h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

CSVJSON
York County, ME customer-hours without power by month, 2021Jan 51K, Feb 30K, Mar 268K, Apr 60K, May 86K, Jun 38K, Jul 55K, Aug 45K, Sep 33K, Oct 96K, Nov 19K, Dec 73K0100k200k300k51KJan30KFeb268KMar60KApr86KMay38KJun55KJul45KAug33KSep96KOct19KNov73KDec
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Customer-hours; March was the worst month.

York County year over year

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York County, ME: average hours without power per customer by year2015: 3.6h; 2016: 4.8h; 2017: 63.5h; 2018: 15.2h, coverage 96%; 2019: 2.5h, coverage 96%; 2020: 32.7h, coverage 96%; 2021: 11.1h, coverage 96%; 2022: 40.4h, coverage 96%; 2023: 49.6h; 2024: 88.1h; 2025: 6.0h02550751000%50%100%3.6h20154.8h201663.5h201715.2h20182.5h201932.7h202011.1h202140.4h202249.6h202388.1h20246.0h2025
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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 York County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 1, 2021 23:30March 4, 2021 21:152d 21h13,496164K
2May 26, 2021 21:45May 28, 2021 01:151d 3h11,48363K
3March 29, 2021 11:15March 31, 2021 02:151d 15h10,70383K
4October 26, 2021 14:15October 27, 2021 23:151d 9h8,10271K
5December 6, 2021 22:45December 7, 2021 23:301d6,89953K
6June 30, 2021 10:00July 1, 2021 19:151d 9h5,20326K
7April 8, 2021 16:45April 8, 2021 22:005h 15m4,47911K
8April 27, 2021 12:45April 27, 2021 22:159h 30m3,6296,361
9January 12, 2021 12:45January 12, 2021 20:007h 15m3,6088,429
10February 21, 2021 14:15February 21, 2021 22:158h3,3985,104

Outage episodes by size in 2021: 209 reached 100+ customers, 50 reached 1,000+ customers, 3 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 York 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
Kennebunk Light & Power Dist-----

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 ÷ 76,996 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. York County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), York 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/york-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON