5 Best Solar Companies in Delaware (2022 Reviews)
We recommend vetted solar companies that have:
- Availability in your area
- Affordable pricing and financing options
- At least 5 years of experience
- Outstanding customer reviews
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Best Solar Companies in Delaware
Our reviews are curated by a team of solar experts, backed by insider data and reviewed by an advisory board to ensure we provide only the most vital information, minus the marketing gimmicks. Let’s jump in.
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Jump to Section:
- Top 5 Solar Companies in Delaware
- Green Street Solar
- Solar Energy World
- Clean Energy USA
- SunPower
- Paradise Energy Solutions
- Criteria for Selecting the Top Solar Company in Delaware
- FAQ: Best Solar Companies in Delaware
Nationwide Service
Average cost
SunPower
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Most efficient panels on the market -
National coverage -
Cradle to Cradle sustainability certification -
Great warranty coverage -
Expensive -
Customer service varies by local dealer
Most efficient panels on the market 
Expensive Services Offered
-
Solar Panels -
Solar Batteries -
EV Chargers -
System Monitoring
Solar Panels 
Regional Service
Average cost
Solar Energy World
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Excellent reputation -
Independently owned and operated -
Offers products from leading manufacturers -
Some reported communication issues -
Less personalization than competitors offer
Services Offered
-
Solar Panels -
Solar Batteries -
System Monitoring
Regional Service
Average cost
Paradise Energy Solutions
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Outstanding customer service -
Many years of experience -
Great warranty coverage -
Offers products from leading manufacturers -
No leases or PPAs -
Slightly limited service offerings
Services Offered
-
Solar Panels -
Solar Batteries
Regional Service
Average cost
Green Street Solar
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NABCEP-certified technicians -
Locally owned and operated -
Many financing options -
Limited service offerings
Services Offered
-
Solar Panels
Local Service
Average cost
Clean Energy USA
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Excellent reputation -
Many years of experience -
NABCEP-certified technicians -
Slightly expensive -
Limited information available on website
Services Offered
-
Solar Panels -
EV Chargers -
Generators
Solar energy is becoming more commonplace in Delaware and the rest of the U.S. every day. As dozens of homeowners choose to incorporate solar into their homes, countless solar providers rise to meet the demand, but what are the best solar companies in Delaware?
Finding qualified, trustworthy solar installers is a critical first step in your solar process, but it can be tricky to tell the companies with poor service and quality apart from top performers with the best workmanship and pricing.
Here at EcoWatch, we’re familiar with locating the best solar companies from the pool of mediocre choices. So, to help simplify your search, we compiled a list of the best solar installation companies in Delaware.
What Are the Top 5 Solar Companies in Delaware?
Our EcoWatch Solar Experts carefully evaluate each solar installation company we come across. We’ve put together the top five solar installers in Delaware based on our thorough evaluations and research. We look at many top factors under a microscope, including: warranty, years in service, Better Business Bureau rating, customer reviews, available financing and much more.
Refer to the chart below for a quick overview of our top five solar company picks in Delaware. And for more details, read the detailed reviews for each company past the chart.
| Company | Service Areas | Solar Services | Warranty Options | BBB Rating | Year Founded |
Green Street Solar | State of Delaware | Solar panel installations | 25-year manufacturer-specific warranties; 10-year workmanship warranty | A+ | 2014 |
Solar Energy World | State of Delaware | Solar panel and battery installations; system monitoring | 25-year manufacturer-specific warranties | A+ | 2009 |
Clean Energy USA | State of Delaware | Solar panel and EV charger installations; generators | 25-year manufacturer-specific warranties | A+ | 2007 |
SunPower | State of Delaware | Solar panel, battery and EV charger installations; system monitoring | 25-year manufacturer, workmanship and production guarantee | A+ | 1985 |
Paradise Energy Solutions | State of Delaware | Solar panel and battery installations | 25- to 30-year manufacturer-specific warranties; 10-year comprehensive warranty | A+ | 2008 |
As you browse the list, you may notice that popular companies, like Vivint Solar, don’t appear in our review. The exclusion is intentional due to issues that can complicate your solar processes, such as lawsuits, poor reviews in Delaware, specifically, and other headaches.
1. Green Street Solar
Founded in 2014, Green Street Solar is one of the newer solar installation companies on our list. The company offers its solar services to residential and commercial customers going solar in Maryland and Delaware. Despite its relatively young age, Green Street Solar provides many of the same benefits found in the offerings of older, well-established companies.
Green Street Solar customers can enjoy excellent warranties (25-year manufacturer, 10-year installation guarantee), an experienced team (technicians certified by the North American Board of Certified Energy Practitioners, no subcontractors), several financing options (including leases) and free quotes to get the ball rolling.
Green Street Solar’s customer reviews are flooded with satisfied customers. In addition, the Better Business Bureau doled out a strong score (A+) for the company, further bolstering its sparkling reputation.
Pros for Green Street Solar
Green Street Solar offers great service benefits. A few of these benefits include:
- Strong warranty
- Fantastic BBB rating
- NABCEP-certified technicians
- No subcontractors
- Multiple financing options
Cons for Green Street Solar
Although Green Street Solar is an outstanding choice for your solar needs, there are a few things to keep in mind, including:
- Limited service offerings (batteries not offered)
Summary Facts and Figures: Green Street Solar
| BBB Rating | A+ |
| Year Founded | 2014 |
| Service Area | Entire state of Delaware |
| Average Cost | $$$ |
| Solar Services | Solar panel installations |
| Brands of Solar Equipment Offered | Fronius, SolarWorld, Enphase, LG, SMA, Jinko Solar, Q Cells |
| Financing Options | Cash payments, loans, leases |
2. Solar Energy World
Solar Energy World is a popular premium renewable energy provider serving residential and commercial customers across eight states and Washington D.C. Founded in 2009, the company has over a decade of experience in the solar space.
Customers of Solar Energy World reap the abundant benefits of its services. For instance, Solar Energy World comes prepared with an experienced team (NABCEP certified), various financing options (including leases), a diverse array of high-end solar panel brands (Tesla, SMA, Enphase, LG) and free customized solar estimates to initiate the process.
Pros for Solar Energy World
Solar Energy World is a formidable contender among solar providers in Delaware. A few perks of the company’s services include:
- NABCEP-certified techs
- Outstanding BBB rating
- Diverse array of solar panel brands
- Multiple financing options
- Competitive pricing
Cons for Solar Energy World
Like most companies, Solar Energy World has a few drawbacks. Here are a few things to keep in mind:
- Doesn’t offer warranty coverage beyond manufacturer’s guarantee
- Some reported communication issues after installation
Summary Facts and Figures: Solar Energy World
| BBB Rating | A+ |
| Year Founded | 2009 |
| Service Area | Entire state of Delaware |
| Average Cost | $$$ |
| Solar Services | Solar panel and battery installations; system monitoring |
| Brands of Solar Equipment Offered | Q Cells, SolarEdge, SMA, Fronius, Enphase, Silfab Solar, REC, Longi, Tesla, LG |
| Financing Options | Cash payments, loans, leases, PPAs |
3. Clean Energy USA
Clean Energy USA is a premier solar installation company local to Delaware. The company has offered its services to residential and commercial clients for over 15 years. With well over a decade of experience, Clean Energy USA is well-versed in the solar space, which reflects in its services.
Clean Energy USA boasts a full-service team, including electricians, to get your solar process up and running quickly and efficiently. The company has strong customer ratings from customers. In addition, Clean Energy USA boasts an A+ rating from the Better Business Bureau.
Pros for Clean Energy USA
Customers of Clean Energy USA enjoy various benefits. A few high points of the customer’s services include:
- Excellent BBB rating
- Full-service team, including electricians
- Many years of experience
Cons for Clean Energy USA
Clean Energy USA is a solid choice for your solar project. Still, there are a few areas with room for improvement. Here are a few things to keep in mind:
- Specific panel brand options aren’t available
- Pricier than other options in the area
- Specific financing information isn’t readily available online
Summary Facts and Figures: Clean Energy USA
| BBB Rating | A+ |
| Year Founded | 2007 |
| Service Area | Entire state of Delaware |
| Average Cost | $$$ |
| Solar Services | Solar panel and EV charger installations; generators |
| Brands of Solar Equipment Offered | Varies |
| Financing Options | Varies |
4. SunPower
SunPower is a massive solar power company serving over 30 states across the U.S., including Delaware. Although SunPower wasn’t officially founded until 1985, its early roots date back nearly 50 years — in 1970, the company’s co-founder began the process that would eventually turn into an industry-dominating powerhouse.
One of SunPower’s biggest draws is its technology. The company produces what are currently the most efficient solar panels on the residential market, and its SunVault solar batteries pair seamlessly for reliable energy storage.
Installing solar through SunPower comes with multiple benefits, including its easy-to-use monitoring app that allows you to keep an eye on your system’s performance and electric bill. In addition, you can control your battery settings easily from your phone, never needing to venture outside.
Click here to read our full review of SunPower.
Pros for SunPower
SunPower offers an array of perks, making it a solid choice for your solar needs. A few high points of the company’s services include:
- Strong BBB rating
- Excellent warranties
- Several financing options, including solar loans
- Easy monitoring system
Cons for SunPower
Although SunPower is a good choice for your solar project, there are a few areas where it falls short. Here are a few things to consider:
- More expensive than average
- Quality of your installation will depend on the certified SunPower dealer nearest you
Summary Facts and Figures: SunPower
| BBB Rating | A+ |
| Year Founded | 1985 |
| Service Area | Entire state of Delaware |
| Average Cost | $$$$ |
| Solar Services | Solar panels, energy storage and EV charger installations; system monitoring |
| Brands of Solar Equipment Offered | SunPower/Maxeon |
| Financing Options | Cash payments, loans, leases, PPAs |
5. Paradise Energy Solutions
Paradise Energy Solutions is a formidable contender among the Delaware solar providers. The company offers all-encompassing services to agricultural, commercial and residential customers in eight states on the eastern seaboard. With over a decade of experience under its belt, the company is well-versed in all things solar.
Although Paradise Energy Solutions offers many benefits, one of the shining stars of its offerings falls to what it calls the “Triple Ten Guarantee.” This guarantee covers workmanship issues (like labor for defective materials), system monitoring and system production for 10 years. In addition, the company only offers solar panels with exceptional manufacturer warranties. The panels are covered by manufacturers’ 25- to 30-year linear performance and product warranties.
Customer reviews further bolster the company’s stellar reputation, with high ratings on both Google Reviews and Facebook. In addition, the BBB scores Paradise Energy Solutions as an A+ company.
Pros for Paradise Energy Solutions
Paradise Energy Solutions is an excellent solar provider for your solar energy project. A few benefits of its services include:
- Competitive pricing
- Several solar panel brand choices
- Excellent BBB ratings
- Myriad of financing options
- Strong warranties
Cons for Paradise Energy Solutions
Paradise Energy Solutions is an excellent option for your solar needs, but it doesn’t offer leases or power purchase agreements (PPAs) to Delaware homeowners, and its service offerings are limited to basic panel and battery installations.
- Limited service offerings
- No leases or PPAs
Summary Facts and Figures: Paradise Energy Solutions
| BBB Rating | A+ |
| Year Founded | 2008 |
| Service Area | Entire state of Delaware |
| Average Cost | $$ |
| Solar Services | Solar panel and battery installations |
| Brands of Solar Equipment Offered | Enphase, Axitec, SMA, LG, SolarEdge, Solectria Renewable, Q Cells, Peimar |
| Financing Options | Cash payments, loans |
EcoWatch Criteria for Selecting the Top Solar Company in Delaware
The EcoWatch solar pros use a detailed process to find the top solar installation companies throughout the U.S. Finding the best home solar companies in each state isn’t an easy task. Here are some of the top criteria we take into account when narrowing down which installers to recommend. You can learn more on our methodology page.
Warranty
For many homeowners, an excellent warranty is a big selling point. Consider this: A company that believes in its products and workmanship is much more likely to offer fantastic warranty coverage than a company that is dubious of its workmanship or products. Companies that have great warranties proudly showcase them on their solar quotes.
Workmanship warranties generally cover anything that relates to the company’s installation. For example, if the solar panel falls off your roof because a technician forgot to tighten bolts, that is covered. Or, if your shingles are damaged during the installation and your roof leaks, that can be covered.
Product warranties often come from equipment manufacturers. Typically, this warranty covers anything related to defects and performance of the photovoltaic (PV) system and its individual elements.
Year Founded
The year a company was founded can be a strong indicator of its experience. Generally, older, well-established solar panel system providers offer a wealth of experience and knowledge in the solar space. With many years of experience, these companies are often well-versed in all things solar.
Some newer companies can offer strong services as well, although there are several unscrupulous and inexperienced pop-up solar providers out there. It’s important to pay attention to all aspects, including the founding year.
Services Offered
While most solar companies offer just basic solar panel installations, others go as far as to offer roofing services, electrical services and other home energy-efficiency upgrades.
Additional services can prove to be a beneficial advantage for homeowners, particularly if an issue arises. For example, if your roof requires repair before installation, a solar company that also offers roofing services may be able to handle it for you.
Solar Panels Offered
Typically, solar providers have a few solar panel brands to choose from, including a mix of high-end options with a few mid-range options. The best solar companies have the resources and materials to handle any solar project, regardless of how big, small or unique it is.
Here’s an example of why this matters: Solar panel costs vary by brand, but so does energy efficiency. The more sunlight your panels can convert into power, the lower your energy bills will be. The most efficient panels in the solar industry are only offered by a few installers, so if you’re set on maximizing your energy production, you’ll want to look for a company that offers highly efficient equipment brands.
Solar Pricing and Financing
The best solar companies in Delaware usually offer competitive pricing and multiple solar financing options. Many times, homeowners cannot afford to pay for their solar energy systems entirely upfront, emphasizing the importance of financing options like low-interest loans and leases.
Offering a variety of financing options can better accommodate the needs of various budgets. Above-average installers will also help you save money in other ways, explaining all of the solar tax credits, rebates and other incentives you qualify for; how net metering through your utility company can further offset your electricity costs; and the benefits of SRECs (Solar Renewable Energy Certificates).
In addition, these companies usually offer competitive rates without sacrificing any other part of the process, such as quality of products or workmanship, or even customer service.
Industry Affiliations
Most legitimate solar installation companies have affiliations with organizations throughout the industry. Industry affiliations and certifications we look out for include those with the Solar Energy Industries Association (SEIA) and the North American Board of Certified Energy Practitioners (NABCEP). Additionally, we look at local- and state-level renewable energy group memberships. As we begin to shorten our list to a few top picks, we consider this major aspect.
Size of Company
Solar companies come in various sizes, with some serving a single city or county and others extending services across the entire U.S. In some cases, larger/national companies can serve customers quicker or more efficiently than smaller competitors, given the larger team on hand.
In addition, these companies can sometimes offer better, more affordable rates, which some homeowners prioritize. However, they can also lack the personalized service and local knowledge of smaller companies.
EcoWatch FAQ: Best Solar Companies in Delaware
Here at EcoWatch, we receive solar questions daily from readers across the U.S. The list below answers our most commonly asked questions.
Yes, solar panel selection does matter when choosing a solar installer in Delaware. Not all solar companies can handle all types of projects, and most companies offer specific brands. If you’re looking for a particular solar panel brand, ensure the company you’re interested in offers that brand.
In addition, if your solar energy project is somewhat unique, like if you need ground-mounted solar panels, you may have to do a bit of searching to find a good fit. Not all solar companies can handle any project.
Solar energy is becoming a more popular source of alternative energy. As the demand grows, there has been an influx of small, pop-up “fly-by-night” companies appearing around the U.S. While some of these newer companies are trustworthy sources, the same cannot be said for all.
Given the price of a new solar energy system, it’s important to get it right the first time, which means picking a suitable, reputable solar provider for your needs. To find this provider, we recommend determining your priorities.
Once you know what you’re looking for, begin narrowing your search using your priorities as an eliminator. Then, with your leftover picks, compare aspects including warranties, financing, customer reviews, Better Business Bureau scores, years in service, etc.
Most solar companies offer quotes in the same general price range. However, there are a few outliers on both ends of the spectrum. If you’re looking for the most affordable solar company in Delaware, we recommend obtaining quotes from a few of our top recommendations above.
Once you have gathered a few personalized quotes, compare your choices and go with the company that will best suit your needs.
Generally, the best solar companies in Delaware have a few distinguishing factors. These companies often excel in multiple areas, offering excellent warranties, a variety of financing options, and many years of experience. They also usually have great customer reviews across several platforms and a strong Better Business Bureau rating.
When choosing the best solar company in Delaware, there isn’t necessarily a single, all-encompassing “most important factor” to consider. Many homeowners have different priorities when it comes to solar energy providers.
For example, a homeowner may be looking for the most affordable option. In that case, the cost would be the most important factor. Or, another homeowner may prioritize warranty coverage, so they’ll look for the provider that offers the most comprehensive warranty.
Whatever your priority may be, we also recommend considering all other aspects of the company. Focusing too closely on one aspect — like cost, for example — may leave you blind to downfalls like poor customer service or shoddy workmanship.
In some cases, national companies may be better for Delaware residents. Sometimes, these companies can offer better, more affordable rates or quicker, more efficient service. However, some homeowners determine that a larger company isn’t the best choice for them.
Ultimately, the final decision falls to your personal priorities and preferences you’re looking for in a solar provider.
