3 utilities compared · 6 plans · 677 ZIP codes
Electricity rates in Maryland
Not a state average. The same household, priced hour by hour for a year on the default plan at each utility we cover here — so the differences below are differences in the tariffs, not in how much anyone used.
What a year of electricity costs in Maryland
| Household | Uses | Median, per year | Cheapest utility | Dearest utility |
|---|---|---|---|---|
| Apartment One or two people, no central air, no electric heat | 4,866 kWh | $966 | $885 | $975 |
| Family home Three or four people with central air conditioning | 9,453 kWh | $1,762 | $1,566 | $1,881 |
| Home with an EV Same house, plus an electric car charging overnight | 13,103 kWh | $2,395 | $2,109 | $2,577 |
Median and range across the 3 utilities, each on the plan a household lands on by default. Estimates for comparing utilities against each other, not a prediction of any one bill; they exclude taxes, local surcharges and demand charges.
How much does where you live inside Maryland matter?
Run the same three-bedroom house with central air through the default residential plan at each of the 3 utilities we cover in Maryland, and the yearly bill lands between $1,566 at Delmarva Power and $1,881 at Potomac Electric Power; the median is $1,762. That $315 gap is for identical electricity, and it is set by nothing you chose: which utility's territory the house stands in. You cannot switch utilities. What you can do is make sure you are on the right plan at yours.
The utility is fixed by your address; the plan is not. At Delmarva Power, the cheapest and dearest of its 3 comparable plans are $90 a year apart for the same house — less than the gap between utilities, but it is the one lever that is actually yours to pull.
2 of the 3 utilities file at least one plan priced by the hour (2 plans in all). If yours is one of them, shifting when you use power is worth real money; if not, only the total matters and the plan list is short.
Maryland has retail choice: you can buy the supply half of your bill from a competing supplier while the utility still delivers it. The figures on this page price the utility's own default supply, which is what you pay if you never shopped. A third-party offer replaces only that part — the delivery charges and the fixed charge stay with the utility whatever you sign.
Utility by utility
Cheapest first, for the family home. The last two columns are where the money is: how far the default plan sits from the cheapest one the same utility files.
| Utility | Plans | Default plan, a year | Cheapest plan | By the hour |
|---|---|---|---|---|
| Delmarva Power Residential Service | 3 | $1,566 | $1,489 | 1 plan |
| Southern Maryland Elec Coop Residential Service | 2 | $1,762 | none cheaper | 1 plan |
| Potomac Electric Power Residential - Schedule R | 1 | $1,881 | only plan | — |
Before you compare anything
- Delivery vs. supply on your electric bill
Half your bill is a service you cannot shop for. Knowing which half matters.
- How to compare electricity plans without getting it wrong
Six things that break a comparison, and the order to check them in.
- Electricity rates by state: what the filed tariffs actually say
Median rates from the tariffs themselves, not a state-level average.