massoutage

2018 Massachusetts Power Outage Report

In 2018, the average Massachusetts customer went without power for about 12.5 hours, the 4th worst of 51 states (US average 5.3 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
12.5
vs prior year
▲ 167%
vs 2017
Customer-hours out
41.4M
Peak customers out
457,698
across the state at once
EAGLE-I coverage
89%
of MA customers
Counties reporting
14

Massachusetts year over year

Massachusetts: average hours without power per customer by year2015: 1.5h; 2016: 2.3h; 2017: 4.7h; 2018: 12.5h, coverage 89%; 2019: 3.0h, coverage 89%; 2020: 5.3h, coverage 94%; 2021: 7.3h, coverage 99%; 2022: 3.3h, coverage 99%; 2023: 5.1h; 2024: 1.9h; 2025: 2.8h0510150%50%100%1.5h20152.3h20164.7h201712.5h20183.0h20195.3h20207.3h20213.3h20225.1h20231.9h20242.8h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2018

Customer-hours without power across Massachusetts; March was the worst.

CSVJSON
Massachusetts customer-hours without power by month, 2018Jan 526K, Feb 192K, Mar 35.6M, Apr 421K, May 346K, Jun 556K, Jul 598K, Aug 558K, Sep 1.2M, Oct 556K, Nov 498K, Dec 264K010M20M30M40M526KJan192KFeb35.6MMar421KApr346KMay556KJun598KJul558KAug1.2MSep556KOct498KNov264KDec
Use the arrow keys to read values.

All 14 Massachusetts counties, 2018

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Barnstable County68.18.1M118,437118,437950
2Plymouth County31.68.9M281,672141,3831,026
3Essex County26.65.8M216,314112,655867
4Nantucket County20.414K680680131
5Middlesex County16.37.1M434,426148,898561
6Dukes County15.4322K20,86415,182305
7Bristol County12.43.5M284,25471,3531,082
8Worcester County11.42.4M212,61764,022952
9Norfolk County11.33.7M326,35768,310877
10Franklin County1.9108K57,9493,279596
11Berkshire County1.8179K99,0233,131791
12Suffolk County1.11.0M947,21111,082688
13Hampshire County1.1109K101,9744,396663
14Hampden County0.9184K196,6565,8581,067

Biggest Massachusetts outages of 2018

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Middlesex County, MAMarch 7, 2018 10:00March 27, 2018 00:1519d 14h148,8985.7M
2Plymouth County, MAMarch 2, 2018 09:45March 6, 2018 01:003d 15h141,3836.6M
3Barnstable County, MAMarch 12, 2018 12:15March 19, 2018 10:456d 22h118,4374.2M
4Essex County, MAMarch 7, 2018 13:15March 13, 2018 07:155d 18h112,6553.8M
5Barnstable County, MAMarch 2, 2018 10:15March 6, 2018 01:003d 14h103,0603.6M
6Bristol County, MAMarch 2, 2018 10:00March 6, 2018 01:003d 15h71,3532.8M
7Norfolk County, MAMarch 2, 2018 10:00March 6, 2018 01:003d 15h68,3102.5M
8Plymouth County, MAMarch 12, 2018 12:15March 21, 2018 07:458d 19h65,3101.6M
9Worcester County, MAMarch 7, 2018 20:15March 11, 2018 12:303d 16h64,0221.4M
10Norfolk County, MAMarch 6, 2018 03:15March 19, 2018 09:1513d 6h32,225787K
11Essex County, MAMarch 2, 2018 10:00March 6, 2018 01:003d 15h27,964500K
12Middlesex County, MAMarch 2, 2018 08:30March 6, 2018 01:003d 16h25,165430K
13Plymouth County, MAMarch 6, 2018 03:15March 12, 2018 07:306d 4h23,167331K
14Bristol County, MAMarch 13, 2018 10:45March 18, 2018 08:154d 21h19,219249K
15Essex County, MASeptember 15, 2018 04:00September 18, 2018 03:152d 23h18,720441K
16Essex County, MASeptember 13, 2018 14:30September 14, 2018 21:451d 7h17,912407K
17Essex County, MAAugust 27, 2018 11:00August 30, 2018 05:002d 18h16,91130K
18Barnstable County, MADecember 11, 2018 13:30December 11, 2018 19:005h 30m15,9614,189
19Worcester County, MAOctober 23, 2018 17:15October 24, 2018 17:451d15,6029,965
20Dukes County, MAMarch 2, 2018 19:00March 6, 2018 01:003d 6h15,182158K
21Barnstable County, MAJanuary 4, 2018 13:00January 6, 2018 02:151d 13h12,31646K
22Essex County, MAMarch 13, 2018 08:45March 17, 2018 02:003d 17h11,84379K
23Worcester County, MAMarch 1, 2018 21:00March 6, 2018 01:004d 4h11,559246K
24Essex County, MAJune 18, 2018 22:30June 20, 2018 00:151d 1h11,44650K
25Dukes County, MAMarch 13, 2018 11:30March 17, 2018 02:003d 14h11,371152K
EAGLE-I tracked about 89% of Massachusetts's electricity customers in 2018; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Massachusetts by year:2025202420232022202120202019201720162015
Other states in 2018:NCVAWVRIVTMEMINJ

Part of the 2018 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.