Solar in Dover, Delaware: Your Utility, Costs, and Net Metering

Rooftop solar panels on a single-family home in a Dover, Delaware neighborhood in Kent County
Quick answer

As of August 2026, solar can pay off in Dover, but the details differ from the rest of Delaware. The City of Dover runs its own municipal electric utility, so net metering and incentives are set locally, not by Delmarva Power. Delaware power runs about 19.4 cents per kWh, and the 30% federal credit ended after December 31, 2025.

Rooftop solar panels on a single-family home in a Dover, Delaware neighborhood in Kent County
Dover solar in 2026, the short version
  • Dover has its own municipal electric utility. The City of Dover generates and delivers power (it runs the McKee Run Generating Station) and is a DEMEC associate member, so Delmarva Power is not your utility inside city limits (City of Dover Electric; American Public Power Association).
  • Net metering is required by state law. Delaware Code Title 26 directs municipal electric companies to offer net metering, and residential systems up to 25 kW qualify; confirm the City of Dover’s exact credit rate and annual true-up before you size a system (Delaware Code Title 26).
  • Delaware residential power runs about 19.4 cents per kWh, a little above the national average of about 18.4 cents (EIA Electric Power Monthly, Table 5.6.A, May 2026).
  • The state Green Energy Program grant is a Delmarva program, not a Dover one. The $0.60 per watt grant goes to Delmarva Power customers, so Dover municipal customers should verify any local incentive directly with the City (DSIRE Delaware).
  • Delaware has no statewide sales tax, so you pay no state sales tax on solar equipment (DSIRE Delaware).
  • The 30% federal homeowner credit (Section 25D) ended for expenditures made after December 31, 2025 (IRS).

Dover is Delaware’s state capital, in Kent County, and it is one of the few places in the state where a municipal utility, not Delmarva Power, keeps the lights on. That one fact changes how rooftop solar works here: your net metering, your interconnection paperwork, and any local incentive come from the City of Dover, not from the investor-owned utility that serves most of Delaware. This page covers what to verify, what solar costs in Dover, how net metering works for a municipal customer, and how to tell if your roof is a good fit. It is part of our Delaware solar guide and the wider Solar by State series. MySolarFY, updated August 2026.

Why Dover is different: the City runs its own electric utility

Dover runs its own municipal electric utility, not Delmarva Power. Most of Delaware is served by Delmarva Power, but inside Dover city limits the electric provider is the City of Dover municipal utility, which generates its own electricity at the McKee Run Generating Station and rejoined the Delaware Municipal Electric Corporation (DEMEC) as an associate member. For a solar owner, that means the rules that matter most, net metering credit terms, the interconnection application, and any rebate, are set by the City, not by Delmarva or a statewide Delmarva program. If your service address is served by Delmarva instead, our Delmarva Power Delaware solar guide is the one to read.

Dover, Delaware solar at a glance (2026)
Detail What to know
Electric utility City of Dover municipal utility (DEMEC associate member), not Delmarva Power
Location Delaware state capital, Kent County, ZIP 19901
Electricity rate About 19.4 cents/kWh statewide (EIA, May 2026); verify your City of Dover rate on a recent bill
Net metering Required of municipal utilities under Delaware Code Title 26; residential up to 25 kW; verify the City’s credit rate and true-up
State Green Energy grant Delmarva Power program; Dover municipal customers are not covered, so check with the City
Sales tax on equipment None (Delaware has no statewide sales tax)
Federal tax credit The 30% Section 25D credit ended for expenditures after December 31, 2025

What solar costs in Dover, and how fast it pays back

A typical Dover home installs about 6 kW. At a common price near $3 per watt, a 6 kW system runs about $18,000 before incentives. Your production drives the savings, so estimate your roof first with NREL’s free PVWatts calculator; actual output depends on your roof’s pitch, orientation, and shading. According to MySolarFY’s analysis (August 2026), a 6 kW rooftop system in Dover (ZIP 19901) produces about 8,361 kWh a year (NREL PVWatts v8), which at Delaware’s roughly 19.4 cents per kWh offsets about $1,620 of grid electricity annually before any SREC income. Because Dover municipal customers are not eligible for the Delmarva Green Energy Program grant, the local payback runs a bit longer than a Delmarva household’s. For the full cost-per-watt and payback breakdown by system size, see our Delaware solar cost and payback guide.

MySolarFY analysis, August 2026: estimated Dover payback (municipal customer)
Input or result Estimate (6 kW cash system, Dover 19901)
Estimated production About 8,361 kWh/year (NREL PVWatts v8, ZIP 19901)
Electricity rate About 19.4 cents/kWh (EIA)
Annual bill offset About $1,620/year
Typical installed cost (cash) About $18,000 (assumes ~$3/watt; the 30% federal credit ended December 31, 2025)
State Green Energy grant Not available to Dover municipal customers (Delmarva-only); verify any City incentive
Estimated simple payback About 11 years (before any SREC income)

MySolarFY estimate as of August 2026, shown so you can check the math. Simple payback before rate inflation, panel degradation, financing costs, and any SREC income. Because Dover is served by a municipal utility, confirm its net-metering credit rate, annual true-up, and any local incentive with the City of Dover before you commit. Your own result depends on your usage, roof, rate, and installer quotes.

Net metering for City of Dover customers

Delaware Code Title 26 directs municipal electric companies to adopt net-metering rules, and it names residential systems up to 25 kW as eligible, so the City of Dover offers net metering by state law rather than by choice (Delaware Code Title 26). What the state law does not fix for you is the exact credit value and how a year-end surplus is settled, and those can differ at a municipal utility. Before you size a system, verify three things directly with the City of Dover Electric Department: the credit rate applied to your exported kilowatt-hours, whether unused credits roll over month to month, and how any leftover credit is paid at the annual true-up. Getting those numbers first keeps your payback estimate honest.

Incentives Dover homeowners can and cannot use

The headline state grant does not reach Dover municipal customers. Delaware’s Green Energy Program pays a residential solar grant of $0.60 per watt to Delmarva Power customers, so a home inside Dover city limits, served by the City’s utility, is outside that program (DSIRE Delaware). Verify with the City whether Dover or DEMEC runs its own green-energy fund or rebate. What every Delaware homeowner does get is no state sales tax on equipment, since Delaware has no statewide sales tax, and access to Delaware’s SREC market, where certificates go to the system owner; the 2026 SREC value is market-driven, so confirm the current price with Energize Delaware before you count on it (Energize Delaware). The federal picture is simpler: the 30% Section 25D homeowner credit ended for expenditures made after December 31, 2025, so a 2026 install cannot claim it (IRS).

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Dover solar FAQ

Who is my electric utility in Dover, Delaware?

Inside Dover city limits your electric provider is the City of Dover municipal utility, not Delmarva Power. The City generates its own power at the McKee Run Generating Station and is an associate member of the Delaware Municipal Electric Corporation (DEMEC). This matters for solar because your net-metering terms, interconnection application, and any rebate come from the City, not from Delmarva or a Delmarva-only state program. If your service address sits just outside the city and is served by Delmarva, the rules and the Green Energy Program grant are different, so confirm which utility appears on your bill first.

Does the City of Dover offer net metering?

Yes. Delaware Code Title 26 requires municipal electric companies to provide net metering, and it names residential systems up to 25 kW as eligible, so net metering is available to Dover homeowners by state law. What the statute does not pin down is the exact credit value and how a year-end surplus is settled at a municipal utility. Before you size a system, verify the credit rate on your exported kilowatt-hours, whether unused credits roll forward month to month, and how any leftover credit is handled at the annual true-up directly with the City of Dover Electric Department.

Can Dover homeowners get the Delaware Green Energy Program grant?

Not through the City’s utility. Delaware’s Green Energy Program grant of $0.60 per watt is a Delmarva Power program, so a home served by the City of Dover municipal utility is outside it. That is the main reason a Dover payback runs a little longer than a Delmarva household’s. Ask the City of Dover, or DEMEC, whether they run a separate green-energy fund or rebate, and confirm the terms before you count on any local incentive. Every Delaware homeowner still avoids state sales tax on equipment and can earn SRECs on the state market.

Is the 30% federal solar tax credit gone?

Yes. The federal Residential Clean Energy Credit (Section 25D) ended for expenditures made after December 31, 2025, so a homeowner who installs solar in Dover in 2026 cannot claim that 30% federal credit. State and local benefits, such as net-metering credits, Delaware’s SREC market, and no state sales tax, do not depend on the federal credit and still apply. MySolarFY does not provide tax advice; confirm your situation with a tax professional and the IRS guidance.

How much does solar cost and save in Dover?

A typical 6 kW cash system runs about $18,000 before incentives at roughly $3 per watt. According to MySolarFY’s analysis in August 2026, that system in Dover (ZIP 19901) produces about 8,361 kWh a year, which at Delaware’s roughly 19.4 cents per kWh offsets about $1,620 of grid power annually, for a simple payback near 11 years before any SREC income. Because Dover municipal customers are not eligible for the Delmarva Green Energy grant, the payback is a bit longer than in Delmarva territory. Your own numbers depend on your roof, usage, City of Dover rate, and installer quotes.

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