Essex County, Massachusetts Power Outages, 2015 to 2023

Essex County, Massachusetts had 25 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 0.93 times the US outage time per person and 1.05 times the Massachusetts rate. It ranks 3 of 12 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.8major outages per year

8 of 9years with a major outage

102 hrslongest major outage

Oct, Marhardest months

October and March made up 64% of this county's outage time. The largest outage on record began Mar 8, 2018, reached 112,655 customers, and left at least 200 customers out for 91.0 hours.

Outage time per resident, rated Massachusetts 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	328,904	214	0
2016	583,327	231	2
2017	4,226,007	197	3
2018	5,644,305	230	6
2019	1,655,774	203	1
2020	539,214	211	3
2021	1,167,461	191	5
2022	866,656	177	2
2023	1,778,276	199	3

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
Mar 8, 2018	91.0	112,655	3,765,526
Oct 30, 2017	102.5	78,644	3,278,794
Oct 17, 2019	83.2	54,383	1,242,693
Sep 9, 2023	62.8	26,237	723,923
Mar 14, 2017	40.8	43,083	582,432

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.

Look up another county

Counties ranked nearby

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.