How much do solar panels cost in 19802?

A standard 6kW residential solar system in 19802 (Wilmington, DE) costs approximately $17,400 before incentives. After the 30% federal Investment Tax Credit, the net cost is $12,180.

How much will I save with solar panels in 19802?

Homeowners in 19802 can expect to save approximately $1,075 per year on electricity bills with a 6kW solar system, for a total of around $26,875 over 25 years.

How long is the payback period for solar in 19802?

The estimated payback period for a 6kW solar installation in 19802 is 11.3 years after the federal tax credit. This is based on 4.41 kWh/m²/day average solar irradiance and local electricity rates of $0.139/kWh.

Solar Panel Cost in 19802

Last updated April 14, 2026 · Source: NREL and SEIA

Wilmington, Delaware · Moderate ROI

Payback 11.3 years

6kW System Cost Breakdown

Gross Installation Cost $17,400 $2.9/W installed

Federal Tax Credit (30%) −$5,220 ITC through 2032

Net Cost After Credit $12,180 Your out-of-pocket cost

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Savings & ROI for 19802

Annual Electricity Savings $1,075 At $0.139/kWh local rate

Annual Solar Production 7,731 kWh 4.41 kWh/m²/day irradiance

Break-Even Point 11.3 years Moderate ROI

25-Year Net Savings +$14,695 After total system cost

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Financing a 6kW solar system in Wilmington? Estimate your monthly payment and total interest below.

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Solar Resource in Wilmington

Wilmington (19802) receives an average of 4.41 kWh/m²/day of solar irradiance, based on latitude 39.754°N and Delaware regional weather patterns from NREL data. At the local electricity rate of $0.139/kWh, a 6kW system generates roughly $1,075 per year in bill savings.

Solar irradiance vs. US average (4.5 kWh/m²/day)

07.5 kWh/m²/day

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Nearby Zip Codes in Wilmington

19801 Wilmington, DE 11.3 yr payback $1,075/yr savings 19805 Wilmington, DE 11.3 yr payback $1,075/yr savings

How We Calculate Solar Costs for 19802

Costs are based on the average price per watt for Delaware ($2.9/W), applied to a standard 6kW residential system. Solar irradiance is derived from NREL PVWatts data for latitude 39.754°N, adjusted for local weather patterns. Electricity rate uses the Delaware EIA average of $0.139/kWh.

The 30% federal Investment Tax Credit (ITC) applies as a credit against your federal income tax liability. Many states offer additional credits; check your state's energy office for local incentives.