Delmarva Power
Northern and central Delaware, including Wilmington, Newark and Dover. Serves both Delaware and Maryland under different state law on each side of the line. These are the Delaware terms.
- Type
- Investor owned
- Accounts
- 320K
What they credit you
Full retail rate
Set by state ruleExports are credited at the full retail rate, with system size capped at 110% of the previous twelve months of usage.
- Month to month
- Credits carry against the bill.
Set by undefined · checked 2026-09-05 · source
What your installer should be telling you
Confirm how the 110% sizing test treats a documented future load increase, such as an electric car or a heat pump.
Delmarva is investor owned, so 26 Del. C. § 1014, net energy metering applies and these terms are set by the state rather than by a board that can revise them. That is the strongest position a homeowner can be in on net metering.
Applying to Delmarva
What Delmarva itself requires, as distinct from what the state rule requires. Read from its own published guidelines on the date shown.
- Full retail rate, at every utility
- Delaware has net metering at the full retail rate across Delmarva Power, Delaware Electric Cooperative and the municipal utilities. Very few states apply one arrangement to all three kinds of provider.
- 110% of the last twelve months is the ceiling
- A system must be predicted to generate no more than 110% of your previous twelve months of electricity use. Bring the bills to the first conversation, because they set the maximum size you may install.
- That ceiling is tighter than it sounds
- If you are planning to add an electric car or a heat pump, your past twelve months understate your future usage. Ask how the utility treats a documented planned load increase before you size the system.
- Ask which utility you are actually on
- Delmarva also serves Maryland, under different state law. The rules described here are the Delaware ones.
From Delmarva’s published guidelines · checked 2026-09-05 · source
Delmarva net metering questions
- Does Delmarva offer one for one net metering?
- Yes. Exports are credited at the full retail rate, with system size capped at 110% of the previous twelve months of usage. Credits carry against the bill.
- What does Delmarva pay for power sent back to the grid?
- Full retail rate.
- Do I need a battery with Delmarva?
- Not for the economics. Delmarva credits exports at the retail rate, so power you send out during the day comes back at the same value after dark without storage. A battery is still worth considering for outages during hurricane season, but it is an upgrade here rather than a requirement.
- How do I find my Delmarva bill?
- Sign in at delmarva.com. Open My Account, then Billing. Open the latest bill and save the PDF. Or screenshot the summary page. If you cannot get to it, a rough guess at your average monthly amount is enough to start.
- What is the catch with Delmarva?
- Confirm how the 110% sizing test treats a documented future load increase, such as an electric car or a heat pump.
Installers serving Delmarva customers
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