massoutage

2020 Massachusetts Power Outage Report

In 2020, the average Massachusetts customer went without power for about 5.3 hours — the 25th worst of any US state that year, 1.2× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
5.3
Peak customers out
70,225
Rank (worst state)
25th
Counties affected
14

Massachusetts outages over the decade

Average hours without power per customer, 2020 highlighted.

1.5h20152.3h20164.7h201712.6h20183.0h20195.3h20207.4h20213.3h20225.1h20231.9h20242.8h2025

Hardest-hit Massachusetts counties in 2020

By peak customers out during the year's worst event.

1Worcester County70,2252Hampden County56,6633Plymouth County46,2254Norfolk County43,4085Middlesex County31,3596Bristol County28,1317Berkshire County19,2808Barnstable County18,7579Hampshire County16,35810Essex County13,56011Franklin County9,86312Suffolk County9,05213Dukes County2,82914Nantucket County2,798

Biggest Massachusetts outages of 2020

CountyBeganPeak customers out
Worcester CountyAugust 4, 202070,225
Hampden CountyAugust 4, 202056,663
Plymouth CountyFebruary 7, 202046,225
Plymouth CountyApril 13, 202046,071
Worcester CountyOctober 7, 202044,540
Norfolk CountyOctober 7, 202043,408
Middlesex CountySeptember 30, 202031,359
Plymouth CountyAugust 4, 202031,175
Hampden CountyOctober 7, 202030,367
Bristol CountyAugust 4, 202028,131
Massachusetts by year:20252024202320222021201920182017
Other states in 2020:LAMEOKIAALNC

Part of the 2020 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.