Power Out Map
– 0 customers out in Delaware

Power outage history

Delaware

2.3hours

without power for the average customer in a typical year, 2018–2025. 46th of 51.

Largest outage on record Hurricane Isaias 61,367 customers out · 12% of the state
Electricity customers 508,412 Across 3 counties
Worst well-recorded year 2020 4.3 hours without power, average customer

County by county

Where Delaware goes dark

Hours without power for the average customer in a typical year. Hover a county; click to open it.

Fewer hours64+ h / yr

Most hours without power

  1. 1New Castle4.0 h
  2. 2Sussex1.4 h
  3. 3Kent0.9 h

Most reliable

  1. 1Kent0.9 h
  2. 2Sussex1.4 h
  3. 3New Castle4.0 h

Year by year

Hours in the dark, statewide

0 2 4 6 8 ’15 ’16 ’17 2.4 ’18 1.8 ’19 4.3 ’20 1.3 ’21 1.6 ’22 2.3 ’23 2.2 ’24 2.2 ’25 US 6.6

The record

Delaware's largest outages

Statewide events with at least 2% of customers, or 25,000, out at once, by peak.

BeganStormPeak outShare
Aug 4, 2020 Hurricane Isaias 61,367 12.1%
Mar 2, 2018 Windstorm 50,409 9.9%
Jun 23, 2015 Thunderstorms 45,915 9.0%
Jan 9, 2024 Windstorm 33,670 6.6%
Mar 14, 2017 Winter storm 33,170 6.5%

Every county

All 3 counties

CountyHours / yrMajor outages since 2018Customers
New Castle 4.0 4 191,056
Sussex 1.4 1 218,986
Kent 0.9 1 98,370

Who keeps the lights on

Utilities in Delaware

Reliability and residential price as reported to the EIA for the latest year. Outage minutes include major storm days.

UtilityTypeOutage min / yrExcl. major storms¢/kWhCustomers
Delmarva Power Investor Owned 104 76 18.2 305k
Delaware Electric Cooperative Cooperative 112 75 13.9 109k
City of Dover Municipal – – 16.2 22k
City of Newark Municipal 35 35 19.8 12k
Town of Middletown Municipal – – 16.6 9.2k
City of Milford Municipal 24 24 15.9 7.5k
Tesla Inc. Behind the Meter – – 16.7 3.3k