15 Best Solar Companies in San Marcos, CA (2024 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, CA
  • Company policies and services offered
  • Accreditations and certifications

Average San Marcos homeowner saves $2,619/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated June 24, 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 San Marcos

Searching for the top solar companies in San Marcos? Installing a solar panel system is an exciting project that many homeowners find rewarding for their wallets, communities and the planet. While solar power is a large investment, you’ll be able to make that amount back and then some, all while living more sustainably. In fact, you could be looking at saving about $31,000 over 20 years.


To help you comb through the huge number of San Marcos solar installers, we’ve come up with a list of the top ones.To get an idea of what it might cost to install solar panels on your roof, you can click the button below to get a quote from a certified installer near you.

Best Regional Coverage

Momentum Solar

★★★★★
4.5
  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch Rankings for Solar Companies in San Marcos

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

SunPower by Milholland Electric

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

Services Offered

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

Website: https://www.milhollandelectric.com/
Address: 1475 Cuyamaca St, El Cajon, CA 92020
Phone: 6197321198
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Precis Solar

  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • 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 Panel Installation
  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Permit Assistance

Website: http://www.precissolar.com/
Address: 36625 Kevin Rd STE 147, Wildomar, CA 92595
Phone: 9514762975
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Sol Energy Systems LLC

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

Services Offered

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

Website: http://www.solenergysystems.com/
Address: 2380 Fenton St, Chula Vista, CA 91914
Phone: 6198360259
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Eminent Energy

  • Pros icon charitable_giving
  • 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 Panel Installation
  • Service icon Permit Assistance

Website: http://www.eminentenergy.org/
Address: 251 N City Dr #128F, San Marcos, CA 92096
Phone: 8585249435
Outstanding Local Installer
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EcoWatch Rating

5.0/5

San Diego County Solar

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

Services Offered

  • Service icon Permit Assistance
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Grid-Tied Solar System
  • Service icon Skilled Repairs
  • Service icon System Decommissioning
  • Service icon Panel Installation
  • Service icon Financing Assistance

Website: http://www.sandiegocountysolar.com/
Address: 5145 Avenida Encinas Ste. A, Carlsbad, CA 92008
Phone: 7602302220
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Cosmic Solar and Roofing

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

Services Offered

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

Website: http://cosmicsolar.com/
Address: 943 Poinsettia Ave STE 401, Vista, CA 92081
Phone: 7607491111
Outstanding Local Installer
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EcoWatch Rating

4.9/5

SolHome

  • 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 Panel Installation
  • Service icon Battery Storage

Website: http://www.mysolhome.com/
Address: 1285 Simpson Way, Escondido, CA 92029
Phone: 6193334824
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Baker Home Energy

  • Pros icon award_winning
  • 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 Cleaning and Maintenance
  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Battery Storage

Website: https://www.bakerhomeenergy.com/
Address: 2120 Harmony Grove Rd, Escondido, CA 92029
Phone: 8774090341
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Green Earth Electric

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

Services Offered

  • Service icon Solar Panel Upgrades
  • Service icon Panel Installation
  • Service icon Skilled Repairs
  • Service icon Consultation

Website: http://www.greenearthelectric.com/
Address: 2772 Roosevelt St, Carlsbad, CA 92008
Phone: 7605860369
Outstanding Local Installer
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EcoWatch Rating

4.5/5

G C Electric Solar

  • Pros icon Clear Pricing Policy
  • Pros icon Prompt Service Delivery
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • 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 Permit Assistance
  • Service icon Panel Installation

Website: http://www.usa-gce.com/
Address: 934 S Andreasen Dr Suite E, Escondido, CA 92029
Phone: 8589993929
Outstanding Local Installer
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EcoWatch Rating

4.3/5

Palomar Solar and Roofing

  • Pros icon award_winning
  • 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 Battery Storage
  • Service icon Financing Assistance

Website: http://www.palomarsolar.com/
Address: 1526 Sterling Ct, Escondido, CA 92029
Phone: 7605040388
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Stellar Solar

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

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Tesla Powerwall
  • Service icon Cleaning and Maintenance
  • Service icon Consultation

Website: http://stellarsolar.net/
Address: 265 Via Del Monte, Oceanside, CA 92058
Phone: 8667876527
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Carlsbad Solar

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

Services Offered

  • Service icon Panel Installation
  • Service icon Battery Storage
  • Service icon Permit Assistance

Website: http://carlsbadsolar.com/
Address: 3525 Highland Dr, Carlsbad, CA 92008
Phone: 7608269226
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SolarHub - Best Price & 30 YR Roof Warranty

  • Pros icon Free Quotes
  • 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 Panel Installation
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Permit Assistance

Website: http://homesolarhub.com/
Address: 918 Iron Horse Dr, San Marcos, CA 92078
Phone: 8584721567
Outstanding Local Installer
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EcoWatch Rating

3.0/5

Sol Nova Electric LLC

  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon charitable_giving
  • 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 Financing Assistance
  • Service icon Panel Installation

Website: http://www.gosolnova.com/
Address: 330 Rancheros Dr, San Marcos, CA 92069
Phone: 8337656682

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 California 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 lots of homeowners, whether or not to invest in solar energy depends the most on the cost.Some key things that affect how much it will cost and how much you could save include:

  • Incentives: One thing that can reduce the cost of your solar project is the solar investment tax credit (ITC), which is a tax credit that lets you deduct from your taxes a percentage of the project cost. You can also save on your energy bills, which can result in an average of $31,000 of savings over 20 years.
  • System size and type: Some models are more expensive than others, so the one you get can raise or lower your upfront cost. Plus, the more solar panels you need to buy, the more it'll cost.
  • The amount of sunlight your roof gets: Due to San Marcos’s very high amount of average daily sunlight, you should be able to save a lot on your electricity bills.
  • How much power your household needs: If your family uses a lot of energy, you'll see more savings from switching to solar.

There are many great benefits of solar despite the upfront cost of installation. It can help the Earth and your finances. Plus, it can increase the value of your home, resulting in even more benefits if you decide to sell your home later.

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Solar Incentives in San Marcos

One of the great things about installing a solar panel system is earning federal and potentially state 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. Additionally, there are often some state and city incentives that you can use to further save. Our article on solar incentives has more in-depth information on the incentives you can benefit from in San Marcos.

Environmental Impact of Switching to Solar in San Marcos

One reason so many homeowners consider switching to solar power is to help lower their environmental impact.But how much can installing solar panels actually help the environment? Switching to solar power is a sustainable choice for the environment, due to the fact that the biggest source of greenhouse gas emissions in the U.S. is from burning fossil fuels for electricity, heat, and transportation – all of which can be powered by solar instead.After you go solar, your carbon emissions can be reduced by about 50 pounds a year. The good things about solar power are infinite — just like solar power is! That's why so many San Marcos residents have been happy with using solar energy.

Best Regional Coverage

Momentum Solar

★★★★★
4.5
  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch's San Marcos, CA Solar Company Rankings FAQs

Which solar installation company is the best near me?

In San Marcos, SunPower by Milholland Electric is the top local solar company. Our team of experts rates it 4.80 stars, so it's a solid choice if you're planning to add solar panels to your home.

What are the advantages and disadvantages of solar power?

The main advantages of solar power are that it can decrease or, for some, 100% erase your electricity bills, raise your home’s value and reduce your carbon footprint. The biggest 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.

Is it worth putting solar panels on my roof?

Solar panels can be a great investment for many homeowners, but honestly, they might not be worth it for everyone. If your home doesn't get enough sunlight or your power bills are already fairly low, solar panels might not be for you.

When is the best time of year to install solar panels?

Despite summer being the most popular time people install solar panels, the optimal time is actually winter. You can save money since there's less demand during the winter months, and it allows you to be up and running with solar for the higher power bills you may get during the summer.

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.