Generac® Home Standby Generators

America’s most trusted standby brand. We specify and install Generac home backup systems sized to your needs—with natural gas or propane, quiet operation, and automatic power during an outage. As your local Generac specialist in Greenville, we handle design, permits, installation, and ongoing service.

Why Homeowners Choose Generac

  • Automatic transfer—power returns within seconds of an outage
  • Runs on natural gas or liquid propane; no refueling hassles
  • True, stable power for today’s electronics & HVAC equipment
  • All-weather aluminum & composite enclosures for durability
  • Quiet-Test™ self-exercise for low-noise weekly checks
  • Mobile monitoring options to view status and alerts
  • Smart load management for whole-home or essential circuits
  • Strong parts availability and factory warranty coverage
Authorized Generac support: We provide a virtual assessment call with sizing and load calculations, an estimate, a pre-site visit (site survey) before installation, permits, pad & fuel coordination, ATS installation, startup/commissioning, warranty registration, and ongoing maintenance. We’ll recommend the right system for your home and budget.
Generac standby generator installation Generac unit at customer residence
How does home standby generator installation work?

A typical installation includes: a virtual assessment call with load calculation, an estimate, a pre-site visit, permitting, pad prep, fuel connection, ATS wiring, commissioning, and final inspection.

What is a home standby generator?

A standby generator is a permanently installed unit that automatically powers your home during outages. It’s wired into your panel with an Automatic Transfer Switch (ATS).

Why should I buy a home standby generator instead of a portable generator?

Standby generators are safer, automatic, and power your whole home without the hassle of refueling or running cords. They’re fully code-compliant and permanent solutions.

What is an automatic backup generator?

An automatic generator detects outages and switches on within seconds, keeping essential circuits or your entire home powered without manual intervention.

How does an automatic generator know when to turn on?

The system constantly monitors utility power. When it senses a failure, it automatically starts and transfers your home to generator power via the ATS.

What types of fuel do automatic generators use?

Most standby units run on natural gas or liquid propane (LP). Fuel type depends on your home’s access and preference, but both are safe and reliable options.

Can a generator power my whole home?

Yes — with the right sizing. We perform load calculations to determine whether you need full-house coverage or just essential circuits like HVAC, refrigeration, and lighting.

How often should a generator be maintained?

We recommend at least an annual service. This includes oil/filter changes, battery checks, and load testing. We offer annual and bi-annual maintenance plans.

Will an automatic generator add value to my property?

Yes. Standby systems are attractive to buyers, increase home resilience, and often improve property value — especially in areas with frequent outages.

How do I correctly size a generator for my home?

We perform a load calculation during your free virtual assessment call to determine the right size based on your appliances, HVAC, and critical circuits. Proper sizing ensures efficiency and reliability.

Why Your Neighbors Choose Generac Generators

Posted on Google Google
Dom Crotty profile picture
Dom Crotty
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Don and the rest of the crew did an excellent job upgrading our house HVAC systems. Don spent hours dialing in our project. His quotes were extremely thorough and fit our budget. Steve performed the technical walk-through and the actual removal and new install, with Ivan. These guys worked their behinds off on two of the hottest days this Summer in the attic of our house--without a complaint or hesitation. Impressive! Impressive too that the job they did was excellent. We're really happy with our new variable speed system--it has been keeping us comfortable since it came online. Thanks to all the folks at U.S. Energy Solutions. We'd recommend them highly to anyone for their integrity, competency and true commitment to excellence in their work.
Posted on Google Google
ken downs profile picture
ken downs
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
The did a great job in the set up, the three guys work very well together,great job guys.
Posted on Google Google
Bryan Metts profile picture
Bryan Metts
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Ivan Gretchen and Steven Salazar did a great job installing my mom’s hv/ac unit and heat pump hot water heater. They both were very professional and very knowledgeable on the products they were installing sticking around to make sure my mom and I understood this new technology “new to us”. They left no mess and cleaned up all the old equipment that came out of the house.
Posted on Google Google
David profile picture
David
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
They got my system up and running quickly. Very courteous and helpful
Posted on Google Google
Clark Bell profile picture
Clark Bell
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Once the permit cleared it was done in two days. Required hand digging a 50 ft trench. Good guys to get work done.
Posted on Google Google
Sandra Hamm profile picture
Sandra Hamm
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Our technician was JC and he was professional, and very knowledgeable. Our Generac generator had nothing on the screen and it ended up that we needed a new battery( after 6 years). He also reconnected us to our WiFi which we also lost. He got it up and running, did all the regular maintenance, oil change, filters , etc and we are now good to go. We will never use another company. US Energy Solutions are the very best!!
Posted on Google Google
Jenny Swearingen profile picture
Jenny Swearingen
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Call these guys for all of your hvac and electrical services. They are professional, proficient and have the knowledge to get the job done! From the office staff to the installers, everyone is great to work with and a refreshing sense of pride in the work that they do. I highly recommend them!
Posted on Google Google
Kn C profile picture
Kn C
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Could not have been happier with US Energy Solutions.Very reliable and great price. Best all around