Is Solar Worth It in Wilmington, DE? (2026 Analysis)

Detailed solar ROI analysis for Wilmington, Delaware. With 4.3 peak sun hours and electricity at $0.14/kWh, here is what you can expect from going solar.

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$21,102 20-Year Savings
7 yrs Break-Even Timeline
$9,660 Net Cost After Incentives
4.3 hrs Peak Sun Hours/Day
$0.14/kWh Electricity Rate (increasing)
70,851 Population

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20-Year Solar Savings Projection for Wilmington

This projection is based on a 7 kW system with 4.3 peak sun hours and $0.14/kWh electricity rate.

PeriodCumulative SavingsNet PositionStatus
Year 1$1,538$-8,122Paying off
Year 2$3,076$-6,584Paying off
Year 3$4,614$-5,046Paying off
Year 4$6,152$-3,508Paying off
Year 5$7,690$-1,970Paying off
Year 7$10,766$1,106Profitable
Year 9$13,842$4,182Profitable
Year 11$16,918$7,258Profitable
Year 16$24,608$14,948Profitable
Year 20$30,760$21,100Profitable

Estimates assume stable electricity rates. Actual savings may increase as rates rise.

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$0 down options available. Own your system and claim the 30% federal tax credit. Save up to $1,538/year.

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Solar Investment Breakdown for Wilmington

Gross System Cost 13800
Federal Tax Credit (30%) 4140
State Incentives 0
Net Cost 9660
Annual Savings 1538

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Local Solar Incentives in Wilmington

Local Programs: Federal ITC plus applicable state and local incentives

Electricity Trend: Rates in Wilmington are currently increasing. Solar locks in your energy costs and provides a hedge against future rate increases.

State Incentives: Delaware offers net metering (full), and SRECs worth $25/MWh. See all Delaware incentives.

Financing Options for Wilmington Homeowners

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CashBest ROI. Own immediately.
LoanOwn system + tax credits.
Lease/PPA$0 down. Lower savings.

Best Solar Providers in Wilmington

ProviderTypeHighlightRatingAction
EnergySageMarketplaceCompare Wilmington installers4.8/5Get Quotes
SunrunInstaller$0 down solar in DE4.5/5View Plans
SunPowerPremiumHighest efficiency panels4.6/5Get Quote

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Frequently Asked Questions

Yes. With 4.3 average peak sun hours per day and electricity rates at $0.14/kWh (increasing trend), solar is a strong investment in Wilmington. The estimated 20-year savings is $21,102 with a break-even period of approximately 7 years.
The average solar installation in the Wilmington area costs approximately $13,800 for a 7 kW system before incentives. After the 30% federal tax credit and state incentives, the net cost drops to approximately $9,660.
Federal ITC plus applicable state and local incentives The 30% federal Investment Tax Credit (ITC) is available to all Wilmington homeowners. Check your specific state and utility for additional programs.
A typical home in Wilmington uses a 7 kW system (approximately 18 panels). This produces roughly 10,987 kWh per year based on 4.3 peak sun hours per day.
Electricity rates in Wilmington are currently increasing. The current average rate is $0.14/kWh. Solar locks in your energy costs and protects against future rate increases.

SolarSavingsAI Research Team

Solar Energy Analysts

Our team analyzes solar incentive data from federal (DOE, IRS), state (DSIRE), and utility sources to provide accurate savings estimates. Data is reviewed quarterly and cross-referenced with NREL benchmarks.

Sources: DOE, IRS, DSIRE, NREL, EIA Updated: 2026 Full Methodology Editorial Standards

Your Local Utilities in Delaware

Review net metering policies and solar programs from utilities serving Wilmington.

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