Solar Panel Cost in Delaware (2026)
Solar panel costs in Delaware depend on system size, roof type, local labor rates, and your utility's net metering rules. In Delaware, a typical 6 kW residential system runs $13,860–$24,500 before incentives, with 30% federal tax credit reducing net cost to about $9,700–$17,150. Average electricity rate: 14.8¢/kWh.
Quick answer
In Delaware, a 6 kW solar panel system costs about $17,820 installed (10.3-year payback). After the 30% federal tax credit, net cost is roughly $12,470. Annual savings: ~$1,210/year at 14.8¢/kWh.
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Estimate for Delaware
$8,300 net after tax credit
~4 kW system · $11,900 before 14.8¢/kWh incentives
Annual savings
$808
Payback
10.3 years
30-year savings
$21,816
Delaware vs US Average
| Metric | DE | US avg |
|---|---|---|
| 6 kW system (before credit) | $17,820 | $16,271 |
| Net cost after 30% ITC | $12,470 | $11,390 |
| Cost per watt | $2.97/W | — |
| Annual electricity savings | $1,210 | $1,335 |
| Payback period (years) | 10.3 yrs | 9 yrs |
| Electricity rate | 14.8¢/kWh | — |
Updated 2026-07-07. Estimates only.
What affects solar costs in Delaware?
- Installer pricing in Delaware averages $2.97/watt — above the US median
- 4.4 peak sun hours/day drives production and payback speed
- Federal Investment Tax Credit (ITC) covers 30% of system cost through 2032 for qualifying homeowners
- Delaware utility rates at 14.8¢/kWh affect monthly bill savings
Solar installation costs in Delaware reflect local labor rates, permit fees, and utility interconnection rules. A typical 6 kW system runs $13,860–$24,500 before the 30% federal tax credit, with net cost around $9,700–$17,150.
Delaware averages 14.8¢/kWh and 4.4 peak sun hours per day — moderate solar production potential for rooftop systems.
Incentives in Delaware
Delaware homeowners may qualify for the 30% federal ITC plus any active state or utility rebates. Verify current programs at dsireusa.org before signing a contract.
How to maximize solar ROI in Delaware
- Compare at least three installer quotes in Delaware
- Model payback using your actual utility rate and usage
- Ask whether net metering or buyback rates apply in your utility territory
- Confirm ITC eligibility with a tax professional
Delaware install costs average $2.97/W with estimated 10.3-year payback on a 6 kW system — above US national averages.
Cost snapshot — DE
- 6 kW system
- $13,860 – $24,500
- After 30% tax credit
- $9,700 – $17,150
- Annual savings
- $990 – $1,390
- Battery add-on
- $7,290 – $13,120
Frequently Asked Questions
How much do solar panels cost in Delaware?
A 6 kW solar system in Delaware typically costs $13,860–$24,500 installed. After the 30% federal tax credit, net cost is about $9,700–$17,150. Cost per watt ranges from $2.52–$3.5.
What is the solar payback period in Delaware?
In Delaware, estimated payback is 7.6–14.5 years for a 6 kW system, with an average around 10.3 years. Higher electricity rates and sun exposure shorten payback.
How much can I save on electricity in Delaware?
A 6 kW system in Delaware may save $990–$1,390 per year on electricity, depending on usage, shading, and net metering. Over 25–30 years, cumulative savings can reach $24,750–$41,700.
Is solar worth it in Delaware in 2026?
Solar in Delaware is worth evaluating if you pay 14.8¢/kWh or more, have a south-facing roof with minimal shade, and plan to stay in your home past the payback period (~10.3 years). Use our calculator for a personalized estimate.
Related solar resources
How We Calculate Solar Costs
MySunROI estimates combine NREL residential PV installed-price benchmarks, EIA state electricity rates, and regional labor modifiers — updated 2026-07-07.
Estimates for informational purposes only. Last updated 2026-07-07. Estimates based on NREL PV cost benchmarks, EIA electricity rates, and 2026 installer pricing surveys.