Take charge of your home energy supply.

Backup power keeps your family safe, warm, and dry during a power outage

Backup power is becoming increasingly valuable as power outages become more frequent and last longer. Backup power systems are part of our DNA. We offer every possible backup power solution to meet your desired level of security and independence from the grid.

Battery-based, AC coupled systems allow your grid-tied solar system to continue to power your home when the grid is down. Strictly grid-tied systems do not work with the grid is down. Our battery backup systems are tailored to work with your existing solar system and to power part or all of your home — indefinitely.


Off-Grid AC Couple Kits

AC coupling is the term for adding a battery-based inverter system to your home’s electrical system which allows it to keep your home and your grid-tie system operational. So it essentially turns your grid-tie only system into a full fledged, off-grid system.

The IPS AC couple kit turns your grid-tied solar system into an independent power system that will keep your house powered when grid power has failed. Strictly grid-tie solar systems are incapable of working when the grid is down. Adding the IPS AC couple kit gives you the peace of mind that you will always have power, no matter what happens to the grid. Using a solar system to provide power when the grid is down has the advantage over a backup generator that it is infrastructure independent; that is, it continues to work even when power lines and fuel delivery services are interrupted.


The IPS kit includes three components: A transfer switch, a battery-based inverter, and a battery bank. The three components are integrated into your home electrical service and work seamlessly with your existing or new solar electrical system. The kit can be installed anywhere but typically is placed in the garage, basement or outdoors.

Upgrade Options:

The kits can be augmented with additional batteries or the addition of a generator.

Battery Expansion:

Adding a battery expansion kit increases energy storage capacity which helps the system to carry loads through the night and during cloudy days.


Adding a generator creates an even more robust backup system by providing a second electrical energy source. The standard kit includes a plug-in for existing portable generators. We are an authorized Kohler Generator dealer and installer and can suggest a complementary model.

Independence from the grid


  • Electrical insurance – never be without power
  • Power your home indefinitely regardless of the condition of the grid
  • Couples with any existing solar system


  • UL Listed equipment
  • Quiet operation
  • No maintenance
  • Eligible for the 30% federal tax credit when purchased with a solar system
  • All kits compatible with generators

AC Couple Kit Models

IPS offers the right-sized kit based on three factors. We will help you determine these and arrive at the optimal system size.

  • Size of your existing or newly installed solar array (DC Rating)
  • Amount of power required for your homes critical loads
  • Amount of energy storage desired



The kit installation price is based on the following standard conditions and includes everything for a National Electrical Code-compliant installation. Installation situations that do not conform to these conditions may incur additional wiring material and associated cost. Installation involves rewiring the house electrical service with a transfer switch and connecting the transfer switch to the AC Couple kit.

Standard Conditions

  • Transfer switch mounted within 1 foot of utility meter
  • Power box unit mounted within 20 feet of transfer switch