massoutage

County annual report · FIPS 23005

2020 Cumberland County, ME Power Outage Report

In 2020, customers in Cumberland County, ME went without power for an average of 16.0 hours, a total of 3.6M customer-hours (Maine average 36.9 hours). That ranks 15th worst of 16 Maine counties and 525th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
16.0
227,401 customers
Customer-hours out
3.6M
Peak customers out
43,564
Outages ≥1,000 out
82
7 of 10,000+ · 896 total
Longest outage
5d 14h
began December 5, 2020
Rank in state
15th/16
525th of 3,019 US

Compared with ME, the US and 2019

Cumberland County, ME average hours without power per customer compared with state and national averages, 2020Cumberland County 16.0 hours, Maine average 36.9 hours, US average 8.7 hours, Cumberland County, 2019 1.3 hoursCumberland CountyCumberland County16.0hMaine averageMaine average36.9hUS averageUS average8.7hCumberland County, 2019Cumberland County, 2…1.3h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Cumberland County, ME customer-hours without power by month, 2020Jan 50K, Feb 142K, Mar 149K, Apr 446K, May 46K, Jun 50K, Jul 94K, Aug 515K, Sep 120K, Oct 105K, Nov 157K, Dec 1.8M0500k1M1.5M2M50KJan142KFeb149KMar446KApr46KMay50KJun94KJul515KAug120KSep105KOct157KNov1.8MDec
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Customer-hours; December was the worst month.

Cumberland County year over year

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Cumberland County, ME: average hours without power per customer by year2015: 1.2h; 2016: 3.8h; 2017: 28.5h; 2018: 5.4h, coverage 96%; 2019: 1.3h, coverage 96%; 2020: 16.0h, coverage 96%; 2021: 3.1h, coverage 96%; 2022: 13.9h, coverage 96%; 2023: 16.2h; 2024: 37.3h; 2025: 3.4h0102030400%50%100%1.2h20153.8h201628.5h20175.4h20181.3h201916.0h20203.1h202113.9h202216.2h202337.3h20243.4h2025
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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 Cumberland County, 2020

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 5, 2020 12:30December 11, 2020 02:455d 14h43,5641.2M
2November 30, 2020 13:30December 3, 2020 19:303d 6h32,078531K
3August 4, 2020 15:15August 7, 2020 21:003d 5h27,863466K
4April 9, 2020 18:15April 14, 2020 19:305d 1h18,500428K
5March 24, 2020 01:30March 25, 2020 21:001d 19h15,819118K
6September 30, 2020 07:45October 3, 2020 22:153d 14h13,447128K
7February 7, 2020 16:00February 9, 2020 04:001d 12h13,35090K
8November 15, 2020 22:30November 17, 2020 21:451d 23h9,741102K
9July 26, 2020 05:00July 26, 2020 19:0014h8,52349K
10May 25, 2020 06:30May 25, 2020 11:305h6,95020K

Outage episodes by size in 2020: 255 reached 100+ customers, 82 reached 1,000+ customers, 7 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 Cumberland County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Central Maine Power Co202029.6 hrs3.743.7 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 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 227,401 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. Cumberland County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Cumberland County, ME annual power outage report, 2020, 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/2020/maine/cumberland-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON