Cumberland County, Maine Power Outages, 2015 to 2023

Cumberland County, Maine had 62 major outages from 2015 to 2023

Higher outage time among US counties

Residents here averaged 2.84 times the US outage time per person and 0.65 times the Maine rate. It ranks 14 of 15 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

6.9major outages per year

9 of 9years with a major outage

132 hrslongest major outage

Dec, Octhardest months

December and October made up 66% of this county's outage time. The largest outage on record began Oct 30, 2017, reached 109,526 customers, and left at least 200 customers out for 131.8 hours.

Outage time per resident, rated Maine counties

MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

2015'152016'162017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	225,028	119	1
2016	810,563	179	6
2017	6,379,652	212	7
2018	1,125,655	190	12
2019	248,747	102	1
2020	3,518,149	246	12
2021	626,359	217	5
2022	3,077,592	213	10
2023	3,583,903	222	8

When outages hit

Share of this county's customer-hours by month.

10%

20%

30%

40%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Oct 30, 2017	131.8	109,526	5,061,370
Dec 23, 2022	102.0	60,853	1,883,685
Dec 19, 2023	83.0	56,426	1,397,023
Dec 5, 2020	86.0	43,564	1,195,321
Dec 18, 2023	21.8	71,717	1,168,914

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

Phones, Wi-Fi, lights, about 60 WRefrigerator, about 60 WChest freezer, about 40 WGas furnace fan, about 160 W

Hours to cover: 24

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

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How to read this

A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.