WilmingtonSolar Incentives 2026: Rebates, Tax Credits & Net Metering
Wilmington homeowners installing in 2026 cannot claim the federal residential credit. What remains is Delmarva Power net metering. At 4.4 peak sun hours a day, a home with a $135/month bill (about 964 kWh) needs roughly a 9.1 kW system — 23 panels — and pays back in about 10.4 years.
Solar Incentives Available in Wilmington
The federal residential credit does not apply to a Wilmington system installed in 2026. Delaware does not add a state income tax credit in this dataset. Delmarva Power sets the local rules for crediting the solar power you export.
Delmarva Power net metering plus Delaware's SREC market and Green Energy Program grants make Wilmington solar pay.
How Much Solar Wilmington Homes Produce
Wilmington gets 4.4 peak sun hours a day, so each 1 kW of panels produces about 1,285 kWh per year here. A 9.1 kW system — the size that fits a typical $135/month Delmarva Power bill — generates roughly 11,692 kWh annually, worth about $1,637 in avoided electricity in year one and more as rates rise.
Delmarva Power Net Metering in Wilmington
Delmarva Power credits excess solar generation from Wilmington homes under Delaware's full retail-rate net metering (~100% of retail). A right-sized system can bring net annual electricity costs close to zero. See full Delaware net metering rules →
How Much Do Solar Panels Cost in Wilmington?
At Delaware's 2026 average of $2.90/watt, the 9.1 kW system most Wilmington homes need runs about $26,390 before incentives. The federal residential credit is $0. DE SREC income is included where the state record has it. Net cost in this model is about $19,190, with payback around 10.4 years. Those figures use $0 federal credit.
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Frequently Asked Questions
See your exact Wilmington solar savings
Enter your Delmarva Power bill. The calculator uses $0 federal credit plus Delaware incentives — system size, net cost, payback, and 25-year savings.