Maryland · Investor Owned · serves 208 ZIP codes
Delmarva Power rate plans
3 residential plans are currently open to new customers. Some charge different prices depending on the hour — which is where most of the savings hide.
Looking for when the expensive hours are? Delmarva Power’s peak hours, plan by plan →
What does Delmarva Power cost at a normal month’s usage?
A household using 1,000 kWh a month pays about $1,847 a year on the cheapest of the 3 plans we can price here — Residential Space Heating Service — and $1,945 on the priciest. Same house, same wires.
| A month of | Cheapest, a year | On which plan | Priciest |
|---|---|---|---|
| 500 kWh | $1,004 | Residential Space Heating Service | $1,090 |
| 1,000 kWh | $1,847 | Residential Space Heating Service | $1,945 |
| 2,000 kWh | $3,531 | Residential Space Heating Service | $3,729 |
The same plan is cheapest at every level of use here, so the answer does not turn on how much you use. Estimates from the filed tariff, priced hour by hour on a household with central air — not a quote.
How much does the plan you pick actually matter here?
Run the same three-bedroom house with central air through every plan Delmarva Power files, and the bill lands anywhere between $1,489 and $1,579 a year. That $90 spread is not a difference in electricity — it is the same kilowatt-hours, from the same wires, priced under different rules. Nobody sends you a letter when you are on the wrong side of it.
The plan most households land on by default, Residential Service, comes to about $1,566. The cheapest option here, Residential Space Heating Service, comes to $1,489 — a gap of about $78 a year for a household that never changed a single habit. Whether you can actually capture that depends on when you use power, which is what the calculator below is for.
1 of these 3 plans price by the hour. Those are the ones where moving laundry, dishes, or car charging into the cheap window changes the bill; on the rest, the clock is irrelevant and only the total matters. Which camp you belong in is the first question worth settling, because it decides whether shifting your day is worth anything at all.
Watch the fixed charges too. Across these plans they run from $162 to $238 a year before a single kilowatt-hour is counted. For a small household that difference alone can outweigh the per-kWh price, which is why comparing cents per kilowatt-hour on its own quietly misleads.
How Delmarva Power compares across Maryland
Run the same three-bedroom house with central air through its default plan at each of the 3 Maryland utilities we cover, and Delmarva Power is the cheapest of the lot at about $1,566 a year; the state median is $1,762. The dearest, Potomac Electric Power, charges $1,881 for identical use — a gap set by the address, not by anything either household did.
The other two households tell the same story in different sizes: a small apartment pays about $885 here against a state median of $966, and the same house with an electric car charging overnight about $2,109 against $2,395. Effective rate, fixed charge included, is 16.6¢ per kilowatt-hour for the family home.
Inside Delmarva Power itself, the gap between its cheapest and dearest plan for that house is $90 a year — less than the $315 between Maryland's cheapest and dearest utilities. Here the address decides most of the bill; the plan decides the rest.
Every Maryland utility we cover, priced for the same three households →
Which plan would cost you least?
No bill upload, no sign-up. Tell us roughly what a month costs you and what runs on electricity — we price every plan against the same household and show you the gap.
That adds up to 10,228 kWh a year. Compare it to the total on your bill and adjust until it’s close.
Same usage, different plan
$92a year
That is the gap between the cheapest plan you could be on — Residential Space Heating Service — and the priciest. Not by using less power. By being billed differently for the same power.
| Plan | Per year | Vs best |
|---|---|---|
| Residential Space Heating ServiceThe hour never matters here — only the season. Rates peak June–September. | $1,589 | — |
| Residential TOU Non-Demand ServicePeak hits 9am–8pm in Nov–Feb on weekdays, and the window shifts 3 times a year. | $1,635 | +$46 |
| Residential ServiceThe hour never matters here — only the season. Rates peak October–May. | $1,681 | +$92 |
An estimate, not a quote. Supply charges move month to month, and your real usage pattern is not exactly this one. What it does show reliably is the gap between plans — both are priced off the same assumptions.
Before you switch anything
- What is a time-of-use electricity rate?
The same kilowatt-hour, priced differently depending on when you use it.
- Should you switch to a time-of-use electricity plan?
A wide peak-to-off-peak gap is a lever, not a saving. Levers need something to move.
- How to compare electricity plans without getting it wrong
Six things that break a comparison, and the order to check them in.
Every plan, in detail
Hour-by-hour schedules, tier thresholds, and the tariff each one comes from.
- Residential Serviceflat
The hour never matters here — only the season. Rates peak October–May.
14.8–14.9¢ - Residential Space Heating Serviceflat
The hour never matters here — only the season. Rates peak June–September.
13.7–14.5¢ - Residential TOU Non-Demand Servicetime-of-use
Peak hits 9am–8pm in Nov–Feb on weekdays, and the window shifts 3 times a year.
6.8–24.5¢