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Official data · U.S. Energy Information Administration, Form EIA-861 · 2024 data · Synced

Delmarva Power · Maryland

Investor-owned utility · EIA utility no. 5027 · 186,368 residential customers reported

In 2024, Delmarva Power's Maryland customers averaged 0.7 outages and 79 minutes without power, and paid about $183 a month for electricity (19.3¢/kWh). These are Delmarva Power's own filings to EIA, under the IEEE reliability standard, including major storm days.

Outages / yr (SAIFI)
0.7
Time out / yr (SAIDI)
79 min
Avg residential bill / mo
$183
Price / kWh
19.3 ¢

Outage history

Minutes without power per customer · storm days shown separately
Delmarva Power annual outage history in Maryland: minutes without power per customer with and without major storm days, and outages per year, by year, from EIA.
Year With storm days Without storm days Outages / yr Relative duration
2024 79 56 0.7
2023 130 56 0.8
2022 144 70 0.9
2021 65 65 0.8
2020 178 68 1.1
2019 103 78 1.0
2018 190 101 1.4
2017 197 93 1.4
2016 119 94 1.3
2015 202 111 1.4
Storm-heavy years look worse with major storm days included; with them removed, the underlying year is comparable. We always show both so a single storm season is not mistaken for a trend. What is a Major Event Day?

About these numbers

Source
U.S. Energy Information Administration, Annual Electric Power Industry Report (Form EIA-861), 2024 data. The monthly bill and price per kWh are computed by CheckedHome from EIA residential revenue and sales. View the source. Synced from EIA on .
Self-reported
Utilities report these figures to EIA themselves; EIA does not audit every submission, and outages from recent months appear only in the next annual release.
Major storm days
Outage figures can be shown with or without Major Event Days (severe storms). We show both on utility pages and never cherry-pick.
A correction?
We republish the official record verbatim. If a figure looks wrong, see Corrections; we re-check it against EIA.
Reporting standard
Delmarva Power reports under the IEEE 1366 method. The standard used is shown so figures are not mixed silently.
Counties served
Caroline, Cecil, Dorchester, Harford, Kent, Queen Annes, and 4 more.

We show EIA values as published, reformatting only for a consistent house style. How we display these figures.