15 Best Solar Companies in New Castle, DE (2023 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in New Castle based on:
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Customer review scores
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Service area for New Castle, DE
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Company policies and services offered
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Accreditations and certifications
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Average New Castle homeowner saves $1,361/year with solar panels
Updated September 15, 2023
Why you can trust EcoWatch
Best Solar Companies in New Castle
Looking for the top solar companies in New Castle? Installing a solar panel system is an exciting venture that many homeowners find rewarding for their wallets, communities and the planet. You may have to spend a decent amount of money upfront for solar panels, but switching to solar will save you money on your power bills in the long term. In fact, you can look forward to saving about $16,000 over 20 years.
The cost of installing solar panels can vary significantly depending on your home's layout and your overall energy requirements. We suggest shopping around for multiple quotes and comparing them to find the best installer for your home. To get free, no-obligation quotes from pre-screened solar panel companies in New Castle, click the link below.
Solar Veteran
Trinity Solar
- Many financing options
- Family-owned and -operated
- Makes charitable contributions
- Limited service area
- Relatively short workmanship warranty
Best Technology
Tesla Energy
- 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

VISION SOLAR
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Free Quotes
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Reliable Customer Support
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Clear Pricing Policy
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Informative Resources
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Limited information available on website
Services Offered
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Expert panel installation
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Skilled repairs
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Home installations
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Tailored solutions

SunPower Builders
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Clear Pricing Policy
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Free Quotes
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Limited information available on website
Services Offered
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Home installations
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Expert panel installation

Momentum Solar
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Free Quotes
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Prompt Service Delivery
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Informative Resources
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Clear Pricing Policy
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Reliable Customer Support
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Limited information available on website
Services Offered
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Business installations
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Expert panel installation
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Tailored solutions
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Energy storage solutions
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Home installations
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Integrated roofing

Public Service Solar, LLC
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Free Quotes
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Clear Pricing Policy
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Informative Resources
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Reliable Customer Support
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Limited information available on website
Services Offered
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Tailored solutions
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Expert panel installation
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Home installations
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Energy storage solutions
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Business installations

SunPower
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Clear Pricing Policy
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Informative Resources
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Reliable Customer Support
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Free Quotes
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Limited information available on website
Services Offered
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Integrated roofing
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Tailored solutions
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Expert panel installation
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Energy storage solutions
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Business installations
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Home installations

Arise Solar
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Clear Pricing Policy
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Reliable Customer Support
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Informative Resources
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Free Quotes
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Limited information available on website
Services Offered
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Integrated roofing
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Business installations
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End-to-end services
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Energy storage solutions
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Expert panel installation
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Home installations
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Tailored solutions

CMI Solar & Electric, Inc.
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Informative Resources
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Reliable Customer Support
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Clear Pricing Policy
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Limited information available on website
Services Offered
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Skilled repairs
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Tailored solutions
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Home installations
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Expert panel installation

Star Enrg
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Informative Resources
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Clear Pricing Policy
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Reliable Customer Support
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Free Quotes
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Limited information available on website
Services Offered
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Home installations
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Business installations
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Expert panel installation
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Tailored solutions

SunnyMac Solar
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Reliable Customer Support
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Informative Resources
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Free Quotes
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Clear Pricing Policy
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Limited information available on website
Services Offered
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Tailored solutions
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End-to-end services
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Business installations
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Home installations
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Expert panel installation
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Integrated roofing
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Energy storage solutions

TerraSol Energies, Inc.
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Clear Pricing Policy
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Informative Resources
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Limited information available on website
Services Offered
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Home installations
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Tailored solutions
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Expert panel installation
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Business installations

RCL Enterprises Inc.
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Clear Pricing Policy
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Informative Resources
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Free Quotes
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Family-Operated Business
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Limited information available on website
Services Offered
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Expert panel installation
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Tailored solutions
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Business installations
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Home installations
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Integrated roofing

Sun-In-One
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Reliable Customer Support
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Free Quotes
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Informative Resources
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Clear Pricing Policy
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Limited information available on website
Services Offered
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Home installations
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Business installations
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Expert panel installation
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Energy storage solutions
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Tailored solutions

Advanced Solar Heating And Cooling of MD
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Reliable Customer Support
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Family-Operated Business
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Limited information available on website
Services Offered
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Integrated roofing
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Expert panel installation
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Skilled repairs
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Tailored solutions
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Home installations

PowertoLight
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Informative Resources
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Free Quotes
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Clear Pricing Policy
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Reliable Customer Support
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Limited information available on website
Services Offered
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Home installations
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Tailored solutions
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Expert panel installation

KW Solar Solutions, Inc
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Clear Pricing Policy
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Informative Resources
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Reliable Customer Support
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Limited information available on website
Services Offered
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Expert panel installation
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Tailored solutions
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Home installations
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Business installations
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
Although solar panels can help save you money on utility bills over time, it's important to know the startup costs. Some important factors that determine how much it will cost to install a solar panel system on your home and how much money you could save over time include:
- The type and model of solar panels you're planning on getting: Higher-efficiency panels are more highly priced, so that will affect your budget for your solar project.
- Your city: This affects how much sunlight your roof gets, which helps determine how many panels you need.
- Incentives: The federal solar investment tax credit, which can save you some money, lets you deduct 30% of the cost of your solar system installation from your federal taxes. Additionally, not including incentives, you can save about $16,000 over 20 years on your energy bills.
- Your household's power bills: Based on the fairly high monthly energy bills in New Castle, you could save about $1,100 a year with solar.
Solar is a fruitful investment for most homeowners. You can produce your own energy instead of paying for it from the grid and make use of solar incentives and rebates, all while helping protect the Earth.
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Solar Incentives in New Castle
If you're thinking about switching to solar energy, various government incentives and solar rebates can greatly bring down your project costs and expedite the return on your investment. On top of the federal tax credit incentive, there are also some state- and city-level programs, which in almost all cases, stack with the federal incentive, so you can save even more. In our article on solar incentives, you can find out about the incentives you qualify for near you.
Environmental Impact of Switching to Solar in New Castle
Installing solar panels can have a meaningful effect on the environment. But how much can switching to solar actually affect the environment? Everyone can help the environment by switching to solar energy, but homes that use more energy will have an even bigger impact. Once you go solar, your carbon footprint can be lowered by about 60 pounds a year. If you want to do what you can for the environment, you'll most likely recognize that there are many good things about adopting solar energy other than just saving money on bills. You can also help protect the environment, which some would argue is worth more.
Solar Veteran
Trinity Solar
- Many financing options
- Family-owned and -operated
- Makes charitable contributions
- Limited service area
- Relatively short workmanship warranty
Best Technology
Tesla Energy
- 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
What is the top solar installation company in New Castle?
In New Castle, Solar Foundations USA is the top local solar company. Our team of experts rates it 3.00 stars, so it's a great choice if you're planning on installing solar panels on your roof.
Are solar panels really good for the environment?
Solar panels can be bad for the environment when manufacturers use toxic chemicals when they're made. Chemicals can make solar panels difficult to recycle safely once they've reached the end of their lifespan. Solar panel manufacturing needs a lot of energy as well. The energy payback period is about 1 to 4 years.
How long does it take for solar to pay for itself?
The average payback period for solar panel installation is about 10.6 years, but the exact period depends on local electricity costs, incentives and net metering programs.
How efficient are solar panels?
Solar panel efficiency is the amount of energy from the sun that is converted into electricity. Most panels today have an efficiency rating of about 15 to 25%. If your panels are more efficient, you'll need fewer of them for your home's energy needs.
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.