15 Best Solar Companies in Gretna, LA (Mar 2023 Review)
We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Gretna based on:
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Customer review scores
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Solar installers near you
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Company policies and services offered
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Accreditations and certifications
Please enter a valid 5-digit zip code!
Updated March 14, 2023
Why you can trust EcoWatch
Best solar companies in Gretna
Thinking of going solar but not sure which solar panel installer would be best for your needs? Although it can be challenging to pick a solar company, the search will pay off because going solar has many great benefits. On average, your family can save $17,000 over 20 years when you use solar power. And since solar panels last about 25 to 30 years, you can save will be well above that overall.
To help you comb through the huge amount of Gretna solar installers, we've narrowed down a list of the top ones. We advise shopping around to get several quotes and comparing them to find the best installer for your home. To receive free, no-pressure quotes from pre-screened solar installers in Gretna, click the link below.
Best National Provider
SunPower
- Most efficient panels on the market
- National coverage
- Cradle to Cradle sustainability certification
- Great warranty coverage
- Expensive
- Customer service varies by local dealer
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
Best Warranty Coverage
Sunpro Solar
- Industry-leading warranty coverage
- Expansive service area
- Some reported communication issues
- No leases or PPAs
EcoWatch Rankings for Solar Companies in Gretna

PosiGen Green Grants
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More transparent pricing than competitors
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Educational sales approach
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Can browse portfolio on website
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NABCEP-certified technicians
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Licensing and credentials transparency
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Limited information available on website
Services Offered
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Removal & Reinstallation
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Commercial Solar Services
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Solar Panels

3rd Rock Energy Solutions
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Educational sales approach
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Licensing and credentials transparency
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Batteries
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Solar Panels

Solar Alternatives, Inc.
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Solar Panels
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Commercial Solar Services

3rd Rock Contracting Roofing & Solar
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More transparent pricing than competitors
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Offers a free quote process
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Educational sales approach
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Family owned and operated
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Locally owned and operated
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Comprehensive service offerings
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Excellent reputation
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Limited information available on website
Services Offered
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Maintenance and Repairs
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Roofing Services
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Commercial Solar Services
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Solar Panels
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Solar Roof Shingles

South Coast Solar
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Can browse portfolio on website
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Offers a free quote process
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Educational sales approach
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Custom system designs
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Excellent reputation
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Some reports of long wait times for installation
Services Offered
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Maintenance and Repairs
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Commercial Solar Services
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Solar Batteries
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Solar Panels

Supreme Power Solar Maintenance
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NABCEP-certified technicians
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Educational sales approach
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More transparent pricing than competitors
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Custom system designs
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Excellent reputation
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Limited information available on website
Services Offered
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Removal & Reinstallation
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Commercial Solar Services
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Maintenance and Repairs
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Solar Panels

PosiGen
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More transparent pricing than competitors
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Educational sales approach
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Can browse portfolio on website
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NABCEP-certified technicians
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Licensing and credentials transparency
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Limited information available on website
Services Offered
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Removal & Reinstallation
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Commercial Solar Services
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Solar Roof Shingles
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Solar Panels

Outside Supply, LLC
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Educational sales approach
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Envisha Energy LLC
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Educational sales approach
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More transparent pricing than competitors
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Cummins Power (Solar & Electrical)
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More transparent pricing than competitors
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Excellent reputation
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Renogy, LLC.
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Educational sales approach
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Licensing and credentials transparency
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Limited information available on website
Services Offered
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Solar Batteries
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Commercial Solar Services
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Solar Panels

Geoshield
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Can browse portfolio on website
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Educational sales approach
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More transparent pricing than competitors
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Joule Energy
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Educational sales approach
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Solar O+M
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Can browse portfolio on website
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Educational sales approach
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels

Ecopro Solar Supply
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More transparent pricing than competitors
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Limited information available on website
Services Offered
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Commercial Solar Services
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Solar Panels
Solar Company Ranking Methodology
Click here to see a more detailed overview of our solar company ranking methodology.
The Cost and Benefits of Solar in Gretna
We know that for most homeowners, the choice to invest in solar rests on installation costs. The installation cost is just one important factor you should bear in mind when looking into installing solar panels. How much it'll cost and how much you can save depend on things such as:
- System size and type: Some models are more expensive than others, so the one you want to get can raise or lower your upfront cost. Plus, the more solar panels you need, the more it'll cost.
- Electricity consumption: The average household in Gretna uses a lot of energy, and consequently may see more savings on electricity bills than other places.
- The amount of sunlight your city gets: Because of Gretna's very high amount of average daily sunlight, you should be able to save a lot on your electric bills.
- Incentives: One thing that can save you money on 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 a decent amount of money on your energy bills, which can result in an average of $17,000 of savings over 20 years.
Solar is a profitable investment for most homeowners. You can produce your own power instead of paying for it from a utility company and take advantage of solar incentives, all while helping the environment.
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Solar Incentives in Gretna
There are many reasons why you should switch to solar. One of them consists of some government incentives that can save you money. No matter what state you live in, you can take advantage of the federal Solar Investment Tax Credit (ITC), which lets you claim 30% of your project costs on your tax return, reducing the amount of taxes you owe that year. Plus, there may be some local incentives you can benefit from too. For detailed information about incentives that apply to you, see our our article on solar incentives.
Environmental Impact of Switching to Solar in Gretna
Switching to solar energy can have a beneficial impact on the environment. Something many homeowners might be thinking about is how much can they really help save the environment by switching to solar power anyway? For homeowners and business owners who want to help cut back on greenhouse gas emissions, using solar power is an easy decision, especially since Gretna produces a high amount of carbon dioxide emissions from its energy generation. Though solar panel production emits carbon dioxide, the panels make up for it by significantly lowering the amount of CO2 you would have released if you still used traditional energy. In Gretna, you can reduce your carbon footprint by 80 pounds a year with solar panels. If you care about the environment, you'll no doubt recognize that there are many benefits of adopting solar power other than just saving money on bills. You can also help preserve the environment, which some would argue is invaluable.
Best National Provider
SunPower
- Most efficient panels on the market
- National coverage
- Cradle to Cradle sustainability certification
- Great warranty coverage
- Expensive
- Customer service varies by local dealer
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
Best Warranty Coverage
Sunpro Solar
- Industry-leading warranty coverage
- Expansive service area
- Some reported communication issues
- No leases or PPAs
EcoWatch's Gretna, LA Solar Company Rankings FAQs
What is the most reputable solar panel installation company in Gretna?
In Gretna, PosiGen Green Grants is the best local solar company. Our team of experts rates it 5.00 stars, so it's a solid choice if you're looking to install solar panels on your house.
What is the negative environmental impact of solar panels?
Solar panels can be bad for the environment when manufacturers use toxic chemicals when they're made. Chemicals can make solar panels difficult to dispose of safely once they've reached the end of their lifespan. Making solar panels requires a lot of energy as well. The energy payback period is about 1 to 4 years.
Is it worth installing solar panels on my roof?
Solar panels can be a beneficial investment for many homeowners, but truthfully, they might not be worth it for everyone. If your home doesn't get a lot of direct sunlight or your electricity bills are already fairly low, solar panels might not be for you.
What is the efficiency of solar panels?
For the most part, solar panels are about 15 to 25% efficient, meaning they can convert that percentage of the energy from the sun into usable electricity.
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.