Is Solar Worth It in Delaware?
Yes — solar is a solid investment in Delaware.
Net metering and state incentives (including SREC-style programs) support payback in 8–10 years and 20+ years of savings.
Average Cost of Solar in Delaware (2026)
The total cost of a residential solar system depends on system size, roof type, and installer pricing.
Typical 6–8 kW system:
- Average cost before incentives: $15,000 – $22,000
- Federal tax credit (30%): -$4,500 – $6,600
- Average net cost after federal credit: $10,500 – $15,400
The federal 30% Residential Clean Energy Credit is administered through the Internal Revenue Service.
Typical systems are 6–8 kW.
Solar Incentives in Delaware
1. Federal Solar Tax Credit (30%)
30% of installation costs deductible from federal taxes.
2. Net Metering
Delaware has net metering; excess generation earns credits.
3. State Incentives
Delaware has had rebates and renewable energy programs. Check DSIRE for current offers.
Electricity Rates in Delaware
Delaware rates are often above the national average.
A typical Delaware homeowner spends $1,600–$2,200 per year on electricity.
Solar can offset most or all of this cost.
Payback Period in Delaware
Most homeowners see:
- Payback period: 8–10 years
- 25-year savings: $28,000–$55,000+
Savings depend on roof orientation, local utility rates, system size, and financing method.
Best Cities for Solar in Delaware
Solar performs well statewide, but adoption is strongest in:
- Wilmington
- Dover
- Newark
Suburban homes with south-facing roofs tend to achieve the highest ROI.
Is Solar Worth It in Delaware? (Summary)
Solar makes the most sense if:
- You plan to stay 8+ years
- Your roof has good sun
- Your bills exceed $120/month
- You qualify for the federal tax credit
Solar makes sense for most Delaware homeowners with good roof exposure.
How to Calculate Your Delaware Solar Savings
Every home is different.
To get a personalized estimate, use the calculator on this page: enter your ZIP, monthly bill, and optional system size to see projected savings and payback.