Delaware ranks #21 in America for savings from installing solar panels on your home

Solar power in Delaware

Last fact checked on July 29, 2019 by Catherine Lane

Delaware is a great place to go solar, due to a solid renewable portfolio standard with a great solar carve out, an array of solar incentives, state-mandated net metering, and the federal tax credit

All of these incentives make the switch to solar more affordable for Delaware homeowners. However, many of the incentive programs fill up fast and some programs have already been fully allocated, so the sooner you install solar, the more savings you're likely to get. 


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Solar power in Delaware

Delaware solar power facts


Average cost of a 5kw solar power system in 2020
Price shown before incentives

7 Years 10 Months

Average payback time


Average lifetime savings
Price shown after repayments of capital


levelized cost of solar energy


If you don't get solar
The forecast average utility price over the next 25 years


Annual power production

Cash flow graph based on cash purchase of a 8.72kW system

This 8.72kW system would offset 100% of your energy usage if your typical monthly bill in Delaware is $150, however your situation may vary so try our solar calculator to get a result tailored to you.

Solar companies in Delaware that provide pricing through the Solar-Estimate marketplace


Best solar offers currently available in Delaware

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How much do solar panels cost in Delaware

$2.78 per watt

Cash purchased solar system
Before 26% solar tax credit

$3.16 per watt

Financed solar system
Before 26% solar tax credit

17.7¢ cents/kWh

Av. 15 year term, 2.5% price escalator

What are the pros and cons of buying solar panels for your home in Delaware

The advantage of installing solar in Delaware is the state-mandated net metering requirement. Utilities must offer kilowatt hour (kWh) credits for excess energy generated by solar systems and because Delaware has expensive power, the overall return on investment for the installation of residential solar panels is fantastic. Delaware also has a variety of utility incentives that make going solar even more affordable. 

SolarPowerRocks provides a great breakdown of solar incentives and policy for each state within the US.

The disadvantage of installing solar panels in Delaware is that the state does not receive as much sunlight as other areas of the country, so a solar system will produce less here than a system in a sunnier state, like Arizona. 

However, full retail net metering, utility rebates, and the federal tax credit more than make up for what the state lacks in sunshine.

Enter your details to calculate the cost and savings you are likely to get from installing solar panels for your home.

Best brands of solar panels

To find the best brands of solar panels you can use America's most trusted solar panel comparison and reviews website, SolarReviews.

However, reviews of solar panels can be a bit meaningless because most consumer owners have not had any issues and so while solar company reviews are very important when choosing solar installers they are of less use when choosing solar panels.

For more information to help you make an informed decision about this topic, I would recommend this article about buying solar panels.


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How much electricity will solar panels produce in Delaware

Solar panels produce different amounts of energy in different locations.

Around the Wilmington area solar panels installed on a south facing 29 degree pitch roof will typically produce:

1,168kWh per year per 1kw of peak DC (direct current) capacity

For more information about how your location, roof direction and roof tilt affects solar power production use the solar panels calculator and enter your zipcode below.


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I want to buy a solar panel kit and install it myself

What rebates, solar tax credits and other solar incentives are available in Delaware?

Renewable portfolio standard and renewable energy credits

In 2005, Delaware passed a renewable portfolio standard (RPS) requiring utilities to derive 25% of their energy from renewable sources by the end of 2026, with 3.5% of that renewable energy coming from solar. 

In order to meet these requirements, utilities must obtain renewable energy credits (RECs) and solar renewable energy credits (SRECs). An SREC represents the environmental benefits associated with generating 1 megawatt hour (MWh) of solar energy. Owners of solar systems can register their system to create SRECs and then sell the SRECs their system produces to aggregators and utilities. 

Customers of Delmarva Power can register through the solar renewable energy certificate procurement program. The program consists of a bidding process, allowing customers to trade their SRECs with the utility. 



Delaware clean energy grant incentives

Utilities in Delaware have created Green Energy Funds through adding small additional charges per kWh of energy sold to their customers. The money from this additional charge was put into the Green Energy Fund to provide customers who install renewable energy systems with rebates. 

Delaware Electric Cooperative provides a rebate for the first 5 kilowatts (kW) of solar installed at a rate of $0.50 per watt. Any kilowatts installed above 5kW will receive a rebate of $0.20 per watt. The maximum rebate available is $2,500. 

Delmarva Power customers who install solar can receive $0.50 per watt of solar they install, up to $3,000. 

The best incentive is offered by Delaware Municipal Electric Corporation (DEMEC) Member Utilities for residents of the City of Newark. DEMEC Member Utilities will cover 33.3% of the cost of a solar system, up to $7,500. 

The Green Energy Funds incentives are starting to become fully allocated, with some of them having waiting lists. In order to take advantage of these rebates, the sooner you go solar - the better!



Net metering in Delaware

Solar, by its nature, generates the most power during the middle of the day when most people are at work or school and little power is being used in the home. The net metering policy in Delaware mandates that for every surplus kWh generated by solar, (like the excess energy your system creates during the day) utilities must provide a credit that will be applied to future bills in order to offset costs. 

Delaware has expensive power rates, so residents of The First State will receive greater savings through full retail rate net metering than those in other states throughout the country.

Delaware Solar Calculator

Regardless of what you want to know about the economics of installing solar panels for your home or business in Delaware we have a solar calculator that can show you exactly the information your require.



What you can find out about installing solar panels in Delaware using our full monthly solar calculator

This solar calculator requires you to input your address, utility company, your average monthly power spend - It tells you:

If you want to see all of the above but also see live pricing, the three best solar deals available in your city and get binding quotes from each of these solar companies then use this Delaware solar panels calculator. This calculator requires you to also input your name and contact details because most of our 200+ installer partners will only authorize the sharing of their live solar pricing where we have validated that you are a real homeowner with a home in their service area. We respect the privacy of your data and only share your contact details with the solar companies you ask us to get binding quotes from.


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Going solar in Delaware

Check out all of the ways energy providers of Delaware can help you be more energy efficient and save money.

The following programs are available:
Incentive Name Eligibility Type
Residential Renewable Energy Tax Credit Federal Personal Tax Credit
Net Metering State Net Metering
Delaware Electric Cooperative Green Energy Program Incentives Utility Rebate Program
Delmarva Green Energy Program Incentives Utility Rebate Program
Find your local rebates and incentives

Your city may have further incentives to offer. Please keep in mind that the best source of up-to-date information on incentives are the solar installers who specialize in your area.