15 Best Solar Companies in New Castle, DE (2024 Reviews)

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

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

Average New Castle homeowner saves $1,361/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated May 20, 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 New Castle

As a homeowner or business owner in New Castle, you may be interested in switching to solar and curious about the best solar companies in your local area. Solar could be a fantastic choice since it has a lot of benefits. One of the advantages of living in New Castle is you have access to plenty of the best solar panels and services in the country.


In this article, we’ll help you narrow down the best options in your area.Continue reading to see our picks for the best solar companies in the city, or get connected to a highly rated solar company near you right away by clicking the button below.

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 New Castle

Best Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

SunPower Builders

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

Services Offered

  • Service icon Panel Installation

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

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Consultation

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

4.8/5

Public Service Solar, LLC

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

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Permit Assistance

Website: https://www.publicservicesolar.com/
Address: 1631 S Olden Ave, Trenton, NJ 08610
Phone: 8882702884
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.2/5

SunnyMac Solar

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

Services Offered

  • Service icon Solar Carports
  • Service icon Permit Assistance
  • Service icon Consultation
  • Service icon Panel Installation

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

EcoWatch Rating

5.0/5

TerraSol Energies, Inc.

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

Services Offered

  • Service icon Panel Installation

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

4.9/5

RCL Enterprises Inc.

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

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Permit Assistance
  • Service icon Consultation
  • Service icon Panel Installation

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

EcoWatch Rating

3.0/5

Star Enrg

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon System Decommissioning
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Battery Storage

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

EcoWatch Rating

3.0/5

CMI ELECTRIC, INC.

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Panel Installation

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

EcoWatch Rating

3.0/5

Arise 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 Panel Installation
  • Service icon Consultation
  • Service icon Cleaning and Maintenance

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

EcoWatch Rating

5.0/5

Kaitanna Solar Installation Company

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Battery Storage

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

Advanced Solar Heating And Cooling of MD

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Panel Installation

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

EcoWatch Rating

3.0/5

KW Solar Solutions, Inc

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

Services Offered

  • Service icon Skilled Repairs
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Panel Installation
  • Service icon Consultation

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

EcoWatch Rating

3.0/5

Open Sky Energy

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

Services Offered

  • Service icon Off-Grid Solar Systems
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Panel Installation

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

EcoWatch Rating

4.9/5

Advanced Renewable Solutions - Solar 4 South Jersey

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

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Skilled Repairs
  • Service icon Panel Installation

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

EcoWatch Rating

5.0/5

MACK Solar and Roofing

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

Services Offered

  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Financing Assistance
  • Service icon Cleaning and Maintenance

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

Methodology: How We Ranked the Best Solar Companies in New Castle

EcoWatch's solar experts analyzed each solar company in New Castle 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 New Castle


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 New Castle

The cost of putting up solar panels has gone down immensely over the past few years, but it’s still a large investment for most homeowners.The overall price and potential savings vary depending on some important factors such as:

  • How much power your household needs: If your family uses a lot of energy, you'll reap more rewards from switching to solar.
  • Your income and budget: This affects what kind of solar panels you can get.
  • Your household's power bills: Because of fairly high monthly electricity bills in New Castle, you could save about $1,400 a year with solar.
  • Incentives: The federal solar investment tax credit, which everyone in the U.S. is eligible for, lets you deduct 0 of the cost of your solar system installation from your federal taxes. In addition, not including incentives, you can save about $16,000 over 20 years on your energy bills.

So is a solar system worth it? Whether you want to lower your energy bills, greenhouse gas emissions or both, solar panels are a good investment for many New Castle homeowners.

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Solar Incentives in New Castle

One of the benefits of installing a solar panel system is receiving government incentives.When you install a solar panel system on your home, you can take advatage of the federal tax credit, or ITC. This credit currently reduces your tax bill by 0 of the cost of your solar panels. Plus, there are often some regional incentives that you can use to further save. Take a look at our article on solar incentives to learn what incentives are available to you.

Environmental Impact of Switching to Solar in New Castle

Many want to do their part for the planet, which often is the chief reason for installing a solar system.But how much can using solar energy instead of traditional energy actually help the environment? If your home uses a lot of energy, you can impact the environment even more by switching to solar energy.In New Castle, the average household can reduce their carbon footprint by 60 pounds a year after going solar. As you can see, investing in solar has so many other rewards beyond saving money. One of the most important ones is that you can help save the environment too.

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 New Castle, DE Solar Company Rankings FAQs

Which solar power company is the best near me?

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

What are a few of the major pros and cons of switching to solar?

A few of the biggest pros are that it lowers your power bills, it’s eco-friendly, and it can give you a good return on your investment (ROI). The most notable cons are that solar panels don’t work as well when there’s limited direct sunlight, the installation cost is pricey and solar panels can be an eyesore.

Are solar panels worth it?

Solar panels can be a good investment for lots of homeowners, but honestly, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your energy bills are already fairly low, solar panels might not be for you.

How often do solar panels have to be replaced?

Although the average lifespan of solar panels is 25 to 30 years, that doesn't mean they should be disposed of. What this means is their energy production will have decreased by about 0.8% each year since installing them. You can opt to replace them after having them for that long or you can keep using them at a lower efficiency after that time.

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.