How much do solar panels cost in Delaware?

In Delaware, solar panel installation averages about $2.72 per watt. For a typical $150 monthly electric bill, a 7.1 kW system (18 panels) costs approximately $19,584 before incentives, or $13,709 after the 30% federal tax credit.

Is solar worth it in Delaware?

Yes — with 4.8 peak sun hours per day and 18.8¢/kWh electricity rates, solar in Delaware typically pays for itself in 7.5 years. The rating is Strong.

Solar Panel Cost & Savings in Delaware (2026)

Quick Delaware Solar Facts

4.8

Peak Sun Hours/Day

18.8¢

Electricity Rate

$2.72

Install Cost/Watt

7.5 yrs

Avg Payback

In Delaware, a typical 7.1 kW system (18 panels) costs approximately $13,709 after the 30% federal tax credit. With 4.8 peak sun hours per day and 18.8¢/kWh electricity rates, annual savings average $1,825 with a payback period of 7.5 years. Rating: Strong. Source: NREL PVWatts v8 (PSH), US EIA July 2026 (rates), SEIA/EnergySage Q1 2026 (costs).

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How many solar panels do I need in Delaware?

For a typical home with a $150 monthly electric bill in Delaware, you need about 18 panels (7.2 kW system). Your exact number depends on your specific monthly usage and roof orientation.

What solar incentives are available in Delaware?

Every US homeowner qualifies for the 30% federal Investment Tax Credit (ITC) through 2032. Many states also offer additional incentives — check our main calculator's Incentives tab for Delaware-specific rebates, tax credits, and net metering policies.

Is Delaware a good state for solar?

Delaware has 4.8 peak sun hours per day (U.S. average: 4.98). With electricity at 18.8¢/kWh (U.S. average: 18.83¢/kWh), solar in Delaware typically pays for itself in 7.5 years. Overall rating: Strong.