15 Best Solar Companies in San Marcos, TX (2025 Reviews)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in San Marcos based on:
Customer review scores- Service area for San Marcos, TX
- Company policies and services offered
- Accreditations and certifications
Please enter a valid 5-digit zip code!
Average San Marcos homeowner saves $1,593/year with solar panels
Why you can trust EcoWatch
Best Solar Companies in San Marcos
Looking for the top solar companies in San Marcos? Installing solar panels is an exciting project that many homeowners find rewarding for their wallets, communities and the planet. One of the main reasons why many homeowners are thinking about switching to solar power is because it can significantly reduce your monthly utility bills which keep getting higher each year.
Here, we’ll make a list of some of the top solar companies in San Marcos to make your choice much easier.To get free quotes from the top solar companies in San Marcos, click the "get quote" button below.
EcoWatch Rankings for Solar Companies in San Marcos
512 Solar
Prompt Service Delivery- Free Quotes
- Reliable Customer Support
- Clear Pricing Policy
Limited information available on website
Services Offered
Consultation- Skilled Repairs
- Panel Installation
- Cleaning and Maintenance
Smartworld Energy
- Free Quotes
- Clear Pricing Policy
- Informative Resources
- Reliable Customer Support
- Limited information available on website
Services Offered
- Consultation
- Cleaning and Maintenance
- System Decommissioning
- Skilled Repairs
- Panel Installation
RENERGY Solar & Energy Storage Systems
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Panel Installation
Lighthouse Solar
- Informative Resources
- Reliable Customer Support
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Panel Installation
- Solar Carports
- Cleaning and Maintenance
- Battery Storage
- Consultation
- Skilled Repairs
ATX Solar
- Informative Resources
- Clear Pricing Policy
- Reliable Customer Support
- Free Quotes
- Limited information available on website
Services Offered
- Battery Storage
- Consultation
- Financing Assistance
- Panel Installation
Erco DER Services - Solar Energy - Energia Solar
- Free Quotes
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
Delta Solar Power
- Reliable Customer Support
- Clear Pricing Policy
- Informative Resources
- Free Quotes
- Limited information available on website
Services Offered
- Panel Installation
Atma Energy
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Battery Storage
- Panel Installation
The American Power Company
- Reliable Customer Support
- Free Quotes
- Informative Resources
- Clear Pricing Policy
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
IES Texas Solar
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Financing Assistance
- Battery Storage
- Panel Installation
- Skilled Repairs
Optimum Solar USA
- Free Quotes
- Clear Pricing Policy
- Informative Resources
- Limited information available on website
Services Offered
- Financing Assistance
- Panel Installation
- Consultation
Greenstar Power
- Reliable Customer Support
- Clear Pricing Policy
- Free Quotes
- Limited information available on website
Services Offered
- Cleaning and Maintenance
- Financing Assistance
- Consultation
- Permit Assistance
- Skilled Repairs
- Panel Installation
NATiVE Solar
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Consultation
- Battery Storage
- Financing Assistance
- Cleaning and Maintenance
- Panel Installation
Texas Solar
- Clear Pricing Policy
- Reliable Customer Support
- Informative Resources
- Limited information available on website
Services Offered
- Panel Installation
Freedom Solar Power - San Antonio Solar Panel Installers
- Free Quotes
- Clear Pricing Policy
- Reliable Customer Support
- Informative Resources
- Prompt Service Delivery
- Limited information available on website
Services Offered
- Panel Installation
- Consultation
- Off-Grid Solar Systems
- Cleaning and Maintenance
- Permit Assistance
- Financing Assistance
- Tesla Powerwall
- Battery Storage
- Skilled Repairs
- Grid-Tied Solar System
Methodology: How We Ranked the Best Solar Companies in San Marcos
EcoWatch's solar experts analyzed each solar company in San Marcos 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 San Marcos
Below are some the criteria we examined specifically for Texas 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 San Marcos
For many people considering switching to solar, the decision of which solar company to choose comes down to total costs.Some key factors that influence how much it will cost to install a solar panel system on your home and how much money you could save over time include:
- Incentives: The federal solar investment tax credit, which everyone qualifies for, lets you deduct 0 of the cost of your solar system installation from your federal taxes. Additionally, not including incentives, you can save about $19,000 over 20 years on your energy bills.
- Typical energy usage: The more energy your home consumes on average and the higher your current energy bills are, the more benefits you’ll see from going solar.
- Your city: This affects the average daily sunlight your roof gets, which helps determine how many panels you need.
- The model of solar panel system you can afford: This is dependent on how much you’re willing to spend upfront.
There are lots of wonderful benefits of solar despite the initial cost of installation. It can help the Earth and your wallet. In addition, it can boost the value of your home, leading to even more benefits if you choose to sell your home later.
Solar Savings Calculator for {{ solarcalc.name }}
If you're wondering how much you could impact the environment if you switch to solar, you can use the calculator below. You can also view our solar panel cost guide for San Marcos, TX.
| {{ solarcalc.time_period|number:0 }} -year savings | {{ solarcalc.total_savings()|currency }} |
| Estimated cost | {{ solarcalc.array_cost() | currency }} |
| Estimated incentives | {{ solarcalc.incentive_savings() | currency }} |
| Payback period | {{ solarcalc.payback_period()|number:1 }} years |
| CO2 emissions prevented | {{ solarcalc.CO2_total()|number:0 }} lbs |
| Miles driven equivalent | {{ solarcalc.CO2_total()/0.78|number:0 }} mi |
Switching to solar in {{ solarcalc.name }} can save you {{ solarcalc.total_savings() | currency }} over the course of {{ solarcalc.time_period|number:0 }} years.
Solar Incentives in San Marcos
One of the great things about installing a solar panel system is receiving incentives from the government.These incentives typically include cash rebates, tax breaks and/or solar renewable energy credits. They can reduce the cost of installing solar panels by 0, upwards of 50% depending on where you live. Take a look at our article on solar incentives to see what incentives you can take advantage of.
Environmental Impact of Switching to Solar in San Marcos
A lot of people want to do what they can for the planet, which for many is the chief reason they’re interested in installing solar panels.Something many might be asking themselves is how much can they really help save the environment by going solar anyway? The average person has a rather large carbon footprint. Between their car, which releases over 10,000 pounds of carbon dioxide emissions every year, and powering their home, it can be overwhelming to think about what to do. Using solar power is one of the easiest things you can do to help.Because solar panels don’t release carbon dioxide emissions into the atmosphere when creating electricity, they’re a good alternative to traditional energy sources. In fact, you could look forward to lowering your carbon dioxide emissions by about 80 pounds each year. The great things about solar power are infinite — just like solar power is! That's why so many people have been happy with using solar energy.
EcoWatch's San Marcos, TX Solar Company Rankings FAQs
Which solar panel installer is the best in San Marcos?
The highest-rated local solar company in San Marcos is 512 Solar, with a rating of 5.00 stars.
What are the pros and cons of going solar?
The advantages of solar power are that it can decrease or, for some, 100% eradicate your electricity bills, raise your home’s value and lower your carbon footprint. The greatest disadvantages are that solar panels can be pricey to install, you may not save as much if you don’t use a lot of electricity and it doesn’t work for all roof types and locations.
Are solar panels worth it?
Solar panels call for a significant upfront investment that usually costs at least ten thousand dollars, but whether or not solar panels are worth it depends on a variety of factors like the cost of electricity near you and the amount of direct sunlight your roof gets.
How often do solar panels need to be replaced?
Though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they are completely unusable. What this means is the amount of energy they produce will have decreased significantly after that point. You can choose to replace them once you've had them for that long or you can continue to use 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.