massoutage

2023 Maryland Power Outage Report

In 2023, the average Maryland customer went without power for about 3.6 hours — the 28th worst of any US state that year, 1.1× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
3.6
Peak customers out
55,999
Rank (worst state)
28th
Counties affected
20

Maryland outages over the decade

Average hours without power per customer, 2023 highlighted.

2.0h20152.2h20161.9h20175.5h20182.6h20192.2h20202.5h20215.5h20223.6h20232.8h20244.2h2025

Hardest-hit Maryland counties in 2023

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

1Montgomery County55,9992Anne Arundel County46,0033Carroll County43,3804Baltimore County38,7895Harford County30,6006Prince George's County25,3237Charles County20,0588Howard County18,7619Cecil County13,21710Allegany County7,68711Calvert County7,59212Frederick County7,10013Queen Anne's County6,53214St. Mary's County6,23815Baltimore city6,10216Washington County5,11917Kent County3,99418Worcester County3,71919Garrett County3,49120Somerset County2,954

Biggest Maryland outages of 2023

CountyBeganPeak customers out
Montgomery CountyJuly 27, 202355,999
Anne Arundel CountyMay 31, 202346,003
Carroll CountyAugust 7, 202343,380
Baltimore CountyJuly 24, 202338,789
Montgomery CountyJune 25, 202337,874
Harford CountyJuly 28, 202330,600
Prince George's CountyJuly 9, 202325,323
Prince George's CountyJuly 18, 202324,896
Prince George's CountyJuly 9, 202324,313
Carroll CountyApril 12, 202322,795
Maryland by year:20252024202220212020201920182017
Other states in 2023:MEMIKYOKARWV

Part of the 2023 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.