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 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 New Castle

As a homeowner or business owner in New Castle, you may be considering switching to solar power and wondering about the best solar companies in your local area. Solar could be a fantastic idea since it comes with a lot of perks. One of the pros of residing in New Castle is you have access to plenty of the best solar panel companies in the nation.


If you’re planning on going solar, the first step you should take is to find the best solar companies in New Castle and compare quotes. That’s why we did the hard work and came up with a list of the best solar companies so you don’t have to.To start getting free quotes from the best solar companies in New Castle, you can click "get quote" 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 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 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 Informative Resources
  • 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 Consultation
  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Residential Panels

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

4.2/5

SunnyMac Solar

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

Services Offered

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

Website: https://www.sunnymacsolar.com/
Address: 413 8th Ave, Wilmington, DE 19805
Phone: 8447866962
Outstanding Local Installer
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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 Commercial Panels
  • Service icon Residential Panels

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

EcoWatch Rating

4.9/5

RCL Enterprises Inc.

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

Services Offered

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

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

3.0/5

Star Enrg

  • Pros icon Informative Resources
  • 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 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
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 Skilled Repairs
  • Service icon Solar Panel Upgrades

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

Website: http://www.arisesolarllc.com/
Address: 4 Donald Preston Dr, Newark, DE 19702
Phone: 3023672013
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 Consultation
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Residential Panels
  • Service icon Commercial Panels

Website: https://kaitannasolar.com/
Address: 34 N Main St, Mullica Hill, NJ 08062
Phone: 8562188354
Outstanding Local Installer
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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 Residential Panels
  • Service icon Emergency Services
  • Service icon Skilled Repairs
  • Service icon Solar Panel Upgrades

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

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

Services Offered

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

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

Services Offered

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

Website: http://macksolarandroofing.com/
Address: 521 Harrison Ave, Oaklyn, NJ 08107
Phone: 8566840653
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.7/5

Finray Solar

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

Services Offered

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

Website: http://www.finray.solar/
Address: 29 Bala Ave, Bala Cynwyd, PA 19004
Phone: 4844348179

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

For many people considering switching to solar, the decision of which solar company to go with comes down to costs.The installation cost is just one important factor you should take into account when looking into installing solar panels. How much it'll cost and how much you can save depend on things including:

  • Energy consumption: Solar may be an expensive option for households that don’t consume a good amount of energy each month.
  • The model of solar panels you can purchase: This hinges on how much you’re willing to spend upfront.
  • Your power bills: This will influence how much you can save. In New Castle, the average resident can save about $1,400 a year on their electricity bills.
  • Incentives: The federal solar investment tax credit currently lets you decrease your taxes by 0 of the project cost. Your state and city may also have incentives and rebates that you can use. Plus, you can save about $16,000 over 20 years on your utility bills, without incentives.

So is a solar panel system worth it? Whether you want to decrease your energy bills, carbon dioxide emissions or both, solar panels are a worthwhile investment for many New Castle homeowners.

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Solar Incentives in New Castle

One of the good things about installing a solar panel system is earning government incentives.You are eligible for the federal solar investment tax credit (ITC) for the tax year you turn on your a solar panel system. You can also potentially stack the ITC with other local incentives. Take a look at our article on solar incentives to find out what incentives you can take advantage of.

Environmental Impact of Switching to Solar in New Castle

Replacing nonrenewable energy with solar power is a compelling way to do your part for a cleaner and more sustainable future.Something many might have in mind is how much can they really help the environment by going solar anyway? No matter where you are, you can help protect the planet by switching to solar energy, but homes that consume more energy will have an even bigger impact.Although making solar panels releases carbon dioxide emissions, the panels make up for it by significantly lowering the amount of CO2 you would have been responsible for if you still used traditional energy. In New Castle, you can reduce your carbon footprint by 60 pounds a year with solar panels. If you want to do your part for the environment, you’ll likely get that there are many good things about adopting solar power other than just saving money on bills. You can also help protect the environment, which some would argue is worth more.

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 New Castle, DE Solar Company Rankings FAQs

Which solar installation company is the best in New Castle?

In New Castle, SunPower Builders is the best local solar company. Our team of experts rates it 3.00 stars, so it's a great choice if you're planning to add solar panels to your house.

What are a few of the major pros and cons of installing solar panels?

The main advantages of solar power are that it can reduce or, in some cases, entirely cut your electricity bills, improve your home’s value and lower your carbon footprint. The disadvantages are that solar panels can be pricey to install, you may not save a lot if you don’t use a lot of electricity and whether you can install solar panels depends on your roof configuration.

Are solar panels worth it?

Solar panels require a large upfront investment that will cost you several thousands of dollars, but whether or not solar panels are worth it depends on a variety of factors like how much you pay for electricity and the amount of direct sunlight your roof gets.

How long do solar panels last?

On average, solar panels can last about 25 to 30 years. Some even last up to 50 years, but efficiency decreases by about 0.8% each year. You can choose to replace them sooner if you want to maintain a higher level of energy production.

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.