15 Best Solar Companies in Wilmington, DE (2024 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Wilmington based on:

  • Customer review scores
  • Service area for Wilmington, DE
  • Company policies and services offered
  • Accreditations and certifications

Average Wilmington homeowner saves $1,192/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 01, 2024

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Wilmington

As a homeowner or business owner in Wilmington, you may be planning on switching to solar energy and curious about the best solar companies in your area. Solar could be a great choice since it comes with a lot of perks. With high levels of average daily sunlight in Wilmington, the solar industry is doing fairly well. An overlooked driver of this has been national incentives that encourage residential and commercial solar projects.


The cost of installing solar panels can vary substantially based on your home’s setup and your household energy usage.To get free quotes from the top solar companies in Wilmington, click the "get quote" button below.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Solar Veteran

Trinity Solar

★★★★★
4.0

  • Many financing options
  • Family-owned and -operated
  • Makes charitable contributions
  • Limited service area
  • Relatively short workmanship warranty

Best Technology

Tesla Energy

★★★★★
3.2

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch Rankings for Solar Companies in Wilmington

Best Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SunPower Builders

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Residential Panels

Website: http://www.sunpowerbuilders.com/
Address: 80 Pechins Mill Rd, Collegeville, PA 19426
Phone: 6104891105
Outstanding Local Installer
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EcoWatch Rating

4.1/5

SunPower

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Residential Panels
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Battery Storage

Website: http://us.sunpower.com/
Address: 300 American Metro Blvd #230, Hamilton Township, NJ 08619
Phone: 7147873800
Outstanding Local Installer
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EcoWatch Rating

5.0/5

TerraSol Energies, Inc.

  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Commercial Panels
  • Service icon Residential Panels

Website: https://www.terrasolenergies.com/
Address: 64 Watkin Ave, Chadds Ford, PA 19317
Phone: 8888739995
Outstanding Local Installer
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EcoWatch Rating

4.2/5

SunnyMac Solar

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Consultation
  • Service icon Commercial Panels
  • Service icon Residential Panels

Website: https://www.sunnymacsolar.com/
Address: 413 8th Ave, Wilmington, DE 19805
Phone: 8447866962
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Star Enrg

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Commercial Panels
  • Service icon Residential Panels

Website: https://www.starenrg.com/service-request-page
Address: 5700 Kirkwood Hwy Suite 106, Wilmington, DE 19808
Phone: 3023978917
Outstanding Local Installer
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EcoWatch Rating

4.9/5

RCL Enterprises Inc.

  • Pros icon Family-Operated Business
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Residential Panels
  • Service icon Consultation
  • Service icon Maintenance
  • Service icon Permit Assistance
  • Service icon Commercial Panels

Website: https://www.rclsolar.com/
Address: 29 Alloway Friesburg Rd, Alloway, NJ 08001
Phone: 8563394014
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Kaitanna Solar Installation Company

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Residential Panels
  • Service icon Battery Storage
  • Service icon Commercial Panels

Website: https://kaitannasolar.com/
Address: 34 N Main St, Mullica Hill, NJ 08062
Phone: 8562188354
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

CMI ELECTRIC, INC.

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Residential Panels
  • Service icon Solar Panel Upgrades
  • Service icon Skilled Repairs

Website: http://www.cmielectric.com/
Address: 83 Albe Dr A, Newark, DE 19702
Phone: 3027315556
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Open Sky Energy

  • Pros icon Free Quotes
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Off-Grid Solar Systems
  • Service icon Residential Panels
  • Service icon Full-Service
  • Service icon Battery Storage
  • Service icon Commercial Panels

Website: https://openskyenergy.net/
Address: 6 Park Ave, Swarthmore, PA 19081
Phone: 6105441214
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Arise Solar

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Maintenance
  • Service icon Energy Efficiency Audit
  • Service icon Commercial Panels
  • Service icon Consultation
  • Service icon Full-Service
  • Service icon Residential Panels

Website: http://www.arisesolarllc.com/
Address: 4 Donald Preston Dr, Newark, DE 19702
Phone: 3023672013
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Advanced Solar Heating And Cooling of MD

  • Pros icon Reliable Customer Support
  • Pros icon Family-Operated Business
  • Con icon Limited information available on website

Services Offered

  • Service icon Emergency Services
  • Service icon Skilled Repairs
  • Service icon Solar Panel Upgrades
  • Service icon Residential Panels

Website: https://sunnydelaware.com/
Address: 1649 Elkton Rd, Elkton, MD 21921
Phone: 3027311000
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.7/5

Finray Solar

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Residential Panels
  • Service icon Financing Assistance
  • Service icon Community Solar Projects

Website: http://www.finray.solar/
Address: 29 Bala Ave, Bala Cynwyd, PA 19004
Phone: 4844348179
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Advanced Renewable Solutions - Solar 4 South Jersey

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Maintenance
  • Service icon Residential Panels
  • Service icon Skilled Repairs
  • Service icon Commercial Panels

Website: https://solar4southjersey.com/
Address: 259 E Browning Rd, Bellmawr, NJ 08031
Phone: 8569000669
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

KW Solar Solutions, Inc

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Skilled Repairs
  • Service icon Maintenance
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Residential Panels
  • Service icon Commercial Panels

Website: https://www.kwsolar.net/
Address: 94 Childs Rd, Elkton, MD 21921
Phone: 3028388400
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

MACK Solar and Roofing

  • Pros icon Prompt Service Delivery
  • Pros icon Family-Operated Business
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Expert panel installation
  • Service icon Integrated roofing
  • Service icon Skilled Repairs
  • Service icon Residential Panels
  • Service icon Home installations
  • Service icon Tailored solutions
  • Service icon Professional reinstallation

Website: http://macksolarandroofing.com/
Address: 521 Harrison Ave, Oaklyn, NJ 08107
Phone: 8566840653

Methodology: How We Ranked the Best Solar Companies in Wilmington

EcoWatch's solar experts analyzed each solar company in Wilmington based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Wilmington


Below are some the criteria we examined specifically for Delaware solar companies

  • Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
  • Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
  • Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
  • Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
  • Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
  • Availability (10%): The bigger the service area, the higher the company will score.
  • Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
  • Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.

The Cost and Benefits of Solar in Wilmington

Solar panels run off a free energy source — the sun — but to take advantage of this you will first need to pay to install your panels.There are several factors you should take into consideration when trying to determine the overall cost and how much you can save, such as:

  • Your income and budget: This determines what model of solar panels you can get.
  • Incentives: Those who purchase and install a solar system this year can save 0 of their total solar spend by taking advantage of the federal solar investment tax credit. You can also save about $14,000 on your energy bills over 20 years without incentives.
  • Energy consumption: Solar may be an expensive investment for households that don’t consume a lot of energy a month.
  • Your city: This affects how much sunlight your roof receives, which helps determine how many panels you need.

So are solar panels worth it? Whether you hope to decrease your electricity costs, greenhouse gas emissions or both, solar panels are a good investment for many Wilmington homeowners.

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Solar Incentives in Wilmington

Although solar power is typically a $15,000 to $25,000 investment, it can save you a significant amount of money in the long term because of lower power bills and government incentives.Local solar incentives depend on the location and, sometimes, utility company. A lot of states offer rebates for solar power systems, in addition to the federal solar tax credit. For detailed information about local incentives, visit our article on solar incentives.

Environmental Impact of Switching to Solar in Wilmington

Installing solar panels is a profound way to do your part for a more sustainable future.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Wilmington, though. If your household consumes a lot of energy, you can have an even greater impact on the planet by switching to solar power.When you go solar, your carbon dioxide emissions can be lowered by about 60 pounds every year. For those who care about the environment, the upfront cost of solar is a small price to pay for reducing your carbon footprint.

Best National Provider

SunPower

★★★★★
5.0

  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

Solar Veteran

Trinity Solar

★★★★★
4.0

  • Many financing options
  • Family-owned and -operated
  • Makes charitable contributions
  • Limited service area
  • Relatively short workmanship warranty

Best Technology

Tesla Energy

★★★★★
3.2

  • Price-match guarantee
  • Sleek, efficient, and durable solar panels
  • Best solar battery on the market
  • Some reported issues with customer service
  • Customer service varies by local dealer

EcoWatch's Wilmington, DE Solar Company Rankings FAQs

Which solar panel installer is the best near me?

The best local solar company in Wilmington is SunPower Builders, with a rating of 3.00 stars.

Are solar panels actually bad for the environment?

Manufacturing solar panels needs to use chemicals and produces toxic waste that can be dangerous for the environment, which is the main negative thing about solar panels.

How long does it take to see a return on your investment after getting solar panels?

The average payback period for solar panel installation is about 14.5 years, but the exact period varies depending on the cost of electricity where you are, incentives and net metering programs.

What are the different kinds of solar panels?

There are three main types of solar panels: monocrystalline, polycrystalline and thin-film. As for efficiency and price, monocrystalline has the highest for both, then polycrystalline, and then thin-film. The best choice for you is highly influenced by the layout of your roof, your budget and how much energy generation you want.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.