Barnstable County, Massachusetts Power Outages, 2015 to 2023

This county is not rated. Its numbers may not reflect what residents experienced.

Barnstable County, Massachusetts had 41 major outages from 2015 to 2023

Not rated

We show this record but do not rank it because the history is short, the population is very small, or customer counts look too high for the population. Treat these numbers with caution. Data confidence: Low, with 9 years of records.

4.6major outages per year

9 of 9years with a major outage

81 hrslongest major outage

Mar, Octhardest months

March and October made up 74% of this county's outage time. The largest outage on record began Mar 13, 2018, reached 128,268 customers, and left at least 200 customers out for 66.5 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.

2.5M

7.5M

10M

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	468,715	123	3
2016	386,351	138	4
2017	1,118,614	149	4
2018	8,027,466	175	6
2019	1,236,838	93	1
2020	465,834	147	4
2021	5,736,858	140	7
2022	2,485,571	193	7
2023	492,999	129	5

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 13, 2018	66.5	128,268	4,182,615
Mar 2, 2018	81.0	103,060	3,557,968
Oct 27, 2021	20.5	273,634	2,323,447
Jan 29, 2022	57.5	85,305	2,044,938
Oct 28, 2021	72.0	92,294	1,864,305

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

Other Massachusetts counties

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.