Bristol County, Massachusetts Power Outages, 2015 to 2023

Bristol County, Massachusetts had 28 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.75 times the US outage time per person and 0.85 times the Massachusetts rate. It ranks 7 of 12 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

3.1major outages per year

8 of 9years with a major outage

80 hrslongest major outage

Mar, Octhardest months

March and October made up 63% of this county's outage time. The largest outage on record began Mar 2, 2018, reached 71,353 customers, and left at least 200 customers out for 80.0 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	160,751	96	0
2016	533,409	131	4
2017	1,079,658	150	1
2018	3,459,801	189	4
2019	322,985	118	4
2020	1,095,874	148	6
2021	1,748,695	140	6
2022	380,844	143	2
2023	921,644	123	1

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 2, 2018	80.0	71,353	2,839,198
Oct 30, 2017	74.5	37,579	878,258
Oct 27, 2021	20.5	105,218	757,039
Dec 18, 2023	70.0	33,055	715,668
Oct 27, 2021	15.5	58,072	467,689

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.