Home Solar Backup Power Supply Systems – Batteries and Generators


Generator and battery systems keep the power on for safety during outages, preventing productivity losses, avoiding perishable food waste, and eliminating costly repairs like frozen pipes and flooded rooms. Backup power systems can also make it possible to use the solar energy you produce outside of daylight hours to power your home or electric car.

Lightning in the sky over several homes

What is Backup Power?

Backup Power is a system that connects to electricity sources, typically solar panels and the electric grid, to store excess power and return it to your home when you need it, generally because of a power outage during an emergency. In most cases, your backup power supply will come from a generator or a battery. Today’s solar batteries are also intelligent energy management systems that can optimize your home’s energy usage to take advantage of utility time-of-use plans or to ensure that your electric car is charged with your solar power system.

Battery or Generator?

We are more than happy to help you determine whether a battery or generator is best for your home. To get started, read our analysis of Batteries vs. Generators which explains how each backup power system works, benefits, costs, and product warranties. Then browse the most common backup power systems we install below. We also offer fully customized backup power solutions to meet your individual needs.

Still have questions? Get a free consultation today. Just tell us about your goals and your home, and we will take it from there!

Tesla Powerwall Battery

Tesla Powerwall

The Tesla Powerwall is a home battery that works by intelligently storing energy during times when energy rates are lower, and using this less expensive stored energy when energy prices start to rise.

This solar panel battery solution is ideal for those looking to save money by switching to solar energy during times when home utility rates are high.

The stored energy can also be used in an emergency situation as a home battery backup for electricity supply. Tesla’s battery backup system offers 13.5 kWh of energy storage capacity, enough to power an average home’s lights, refrigerator, and small appliances for (but not A/C) for one day during a power outage.

Is the Tesla Powerwall 2 Battery right for you?

People who live in areas that have large energy price fluctuations during the day and night can benefit most from this energy system.

Kohler Generator

Kohler backup power generator

The Kohler Generator is a true backup home energy system and is only used during a power outage. Unlike the sonnenBatterie and Tesla Powerwall, the Kohler home backup generator is fueled using natural gas or propane, rather than solar energy. No refueling is needed as it runs on your home’s natural or LP gas, and it automatically powers everything in just 10 seconds after your house goes off the grid. Its main purpose is to power your home in case of an outage, and can power everything to lights and appliances to sensitive electronics.

Kohler home backup generators come in a variety of sizes, from an energy storage of 6 kW to 150kW depending on the size of your home.

Is the Kohler Generator right for you?

The Kohler Generator is for those looking for an economical backup energy solution. While it doesn’t offer continuous solar energy production and intelligent energy usage, it is the most cost-effective way to power your home during an energy outage.

Where does Freedom Solar Install Backup Power Solutions?

At Freedom Solar, our goal is to help every homeowner achieve energy independence as quickly as possible as the risk of power outages increases due to extreme weather events, an aging electric grid, and a growing population. We install batteries and generators for backup power across the states of Texas, Colorado, Florida, Virginia, and North Carolina including:

  • Houston
  • Austin
  • San Antonio
  • Dallas-Fort Worth
  • Colorado Springs
  • Denver
  • Fort Collins
  • Pueblo
  • Tampa
  • Orlando
  • Norfolk-Virginia Beach
  • Raleigh-Durham
  • Charlotte

Want to know more?

Begin a FREE Consultation.

  1. Send us your info.
  2. We’ll contact you to schedule an appointment.
  3. An energy consultant will meet with you at your home, place of business or virtually.
  4. You will get a custom proposal with system size, design, costs, financing, and savings.

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