Skip to main content

EFS Energy

The team here at EFS Energy has worked on large and small residential, agricultural, and business projects. Our whole team is comprised of solar nerds who love diving deeper into the industry. Passion is what makes every job we complete a job well done.
EFS Energy logo
Avg rating

Get free solar quotes from local installers on EnergySage

Our pre-vetted network of installers compete for your business, which allows us to give you more options and the best deals.

Get Quotes
EFS Energy was founded in St. Louis in 2011. We are consistently striving to be on the cutting edge of technological breakthroughs in the industry, and we do it because we are passionate about the technology. Whether you want to save on energy expenses or save the planet, we make sure your system is going to stand the test of time.
Year Established
Phone Number

Services Offered

  • Installation
  • Solar Repair & Maintenance
  • Community Solar

Workmanship Warranty

Our 10 year workmanship warranty covers anything from quoted system production, wiring, and anything related to the installation. We also monitor your system production on our end during the warranty's duration, usually catching the uncommon system issue before the customer.



Industry Certifications

  • Better Business Bureau
  • North American Board of Certified Energy Practitioners
  • Solar Energy Industries Association

Manufacturer Certifications

  • Certified Installer
  • PowerUP

What Customers Are Saying

1 review
Average Rating 1 review(s)
Leave a Review
5 kW solar system in St. Louis

I contacted EFS Energy for a solar panel bid in January 2022. Over the course of the next few months I worked with the company to find a price and system that would work for our needs. For my 999 sq. ft. house, we settled on a 5kW system. Missouri has net metering so it didn't make sense at this time to get a battery backup. They installed 14 - 355w LG Neon 2 panels and a SMS Sunny Boy 3.8 inverter. I worked with Jeremy during the whole process. He was great at getting their quote and walking me through the entire process. The installation team was top notch and did a fantastic job putting everything up onto the roof and installing the electrical. It was a very professional job and looks nice. A few days after the panels were installed and turned on I noticed that the system was not producing as much energy as they said it would. I called EFS and within a couple days they had two employees at my house trying to fix the problem. Turns out during the final county inspection, something had come loose. The workers had it back up and running in a half hour. Overall, I'm very happy about the service that EFS provided and the 10 year warranty that they give to new systems.

Posted by kengie0913 on May 16, 2022



Other Locations

States Served

  • IL,
  • KS,
  • MS