You are in Tennessee. Visit Georgia. Visit Alabama.

You are in Tennessee. Visit Georgia. Visit Alabama.

You are in Tennessee. Visit Georgia. Visit Alabama.

Electrician in front of a Coolray van

What is a Whole-Home Generator?

Power up your home with our Whole-Home Generators!

A whole-home generator is a reliable backup power solution installed outside your home. It seamlessly kicks in during power outages, ensuring uninterrupted electricity to your entire household. Powered by natural gas or propane, it keeps essential appliances running without manual refueling. At Coolray, we offer tailored installation services to keep your family comfortable and safe during unexpected blackouts.

Snag this Limited Time Offer

Secure peace of mind during power outages!

Power up your home with ease and reliability! Get $1,500 off select At-Home Generators and ensure your family's comfort and safety. Don't wait for the next outage, act now and secure uninterrupted power for your peace of mind!

Uncover Essential Details About Our Whole-Home Generators

All the details you need for peace of mind.

How Whole-Home Generators Work

  1. Utility power is lost.
    Whether it's a storm or equipment failure, when the power suddenly goes out, it's your generator's time to shine.

  2. Your generator automatically detects a problem.
    Within seconds, your generator will prepare to restore your home’s power.

  3. Your generator automatically turns on.
    Your generator will automatically turn on and begin generating electricity and powering the appliances you need it to.

  4. Electricity is restored.
    The automatic transfer switch will send generator power to your home and will continue providing power until your main power source returns.

  5. Utility power is restored.
    Your generator will return to standby mode once utility power is restored to your home.

Generator Installation Process

Step 1: We'll start by visiting your home to assess the space for installation.


Step 2: We'll handle all necessary permits from local governments or municipalities.


Step 3: We'll prepare the site for your generator installation with a concrete slab or gravel foundation.


Step 4: We'll install your generator and ensure the transfer switch is correctly positioned and wired.


Step 5: We'll connect your new backup generator to your home's fuel line for seamless operation.


Step 6: We'll simulate an outage to test your generator's performance and ensure it's running smoothly.

Your Automatic Backup Generator Protects:

Your automatic backup generator can power your entire home or prioritize essential electronics as needed, such as:


  • Furnace
  • Air conditioning/heat pumps
  • Refrigeration/freezer for food
  • Medical equipment
  • Home security system/video monitoring
  • Internet access and charging ports for your devices, including cell phones, tablets, and laptops.
  • Clean drinking water
  • Clean bathing water
  • Water heaters
  • Lighting – inside and outside
  • Kitchen appliances
  • Basement sump pump
  • Washer and dryer
  • Garage door openers
  • Electric vehicle charging stations
  • Charging stations for power tools for emergency cleanup

Why Nashville Residents Rely on Coolray for Generators

We've been proudly serving the southeast since 1966. 

  • When you call us, you’ll always speak with a live person who is an employee of Coolray Electrical Services.

  • All of our work comes with a 100% satisfaction guarantee.

  • We’re a locally owned and operated electrical contractor with offices throughout the Nashville metro area.

  • We take the time to meet with you and understand your needs so we can create custom solutions that meet or exceed your expectations.

  • We only install quality products and we only employ trained and knowledgeable electricians.

  • We offer 1-year parts and labor warranty on all of the products we install.

Get Ahead of Power Outages with a Home Generator.

Book Your Appointment Now!

Schedule Online

Ready to schedule a service call or request an estimate? Click the button below to get started online!

Give Us a Call

Need immediate assistance? Give us a call anytime! Our customer service representatives are available 24 hours a day, 7 days a week.

Frequently Asked Questions

We've got answers.

Get Service with Confidence

Easy Financing Options To Suit Your Needs

Coolray Warranties Available To Protect Your System

Service Area

View our service area in Tennessee.


We offer a variety of financing options.


Save money on our services.