Solar in Dover: What Homeowners Should Know
Dover sees an average of 4.4 peak sun hours per day, which is what ultimately determines how much electricity a rooftop system produces here. A standard 8 kW system (about 20 panels) generates roughly 10,278 kWh each year in Dover — and paired with Delaware's local electricity rate of $0.139/kWh, that's where the savings come from.
At those numbers, a Dover homeowner saves about $119/month ($1,429/year). Against a $24,800 system cost (about $23,800 after Delaware state incentives), that works out to a payback of about 16.7 years, after which the system produces essentially free power for two decades — an estimated $25,001 in lifetime savings. Note: the 30% federal tax credit expired at the end of 2025 for purchased systems, though a solar lease or PPA can still pass it through. The local grid is served by Delmarva Power, whose net metering policy directly affects how much credit you earn for surplus power.
Cost & Savings Breakdown
Based on a standard 8 kW system in Dover
25-Year Savings Projection
Utility & Net Metering
Available Incentives
Choosing a Solar Installer in Dover
- 1.Get at least 3 quotes. Prices in Delaware vary widely between installers — comparing bids on the same 8 kW system is the fastest way to avoid overpaying.
- 2.Confirm Delmarva Power interconnection experience. An installer who regularly files with your local utility will move your permit and net-metering paperwork through faster.
- 3.Check licensing & the warranty. Look for NABCEP-certified installers and a workmanship warranty of 10+ years on top of the standard 25-year panel warranty.
- 4.Size for your actual usage. With 4.4 sun hours/day in Dover, make sure the proposed system matches your kWh history — not just your roof space.
Common Questions
How much does solar cost in Dover?
Solar in Dover, Delaware costs approximately $24,800 for a 8 kW system, or about $23,800 after state incentives. The 30% federal tax credit expired December 31, 2025 for purchased systems, though solar leases and PPAs can still pass it through.
What is the solar payback period in Dover?
The estimated payback period for solar in Dover is 16.7 years for a standard 8 kW system, based on local sun hours of 4.4 hrs/day and a rate of $0.139/kWh.
Is solar worth it in Dover?
For most Dover homeowners, yes. With 4.4 peak sun hours per day and an electricity rate of $0.139/kWh, a typical system saves $1,429 per year and around $25,001 over 25 years after paying for itself in 16.7 years.
How many solar panels do I need in Dover?
A standard 8 kW home solar system is about 20 panels, producing roughly 10,278 kWh per year in Dover at 4.4 sun hours/day. Your exact size depends on your household's electricity use.
Does Delmarva Power offer net metering?
Delmarva Power offers Full Retail net metering. Full retail rate.