What size whole home generator do I need to power my home?

Power interruptions are not new. Various weather-related events have caused outages for decades. And for decades, these events led to evacuations and lengthy periods of discomfort and uncertainty. Sometimes, power outages last for hours, and sometimes they last for weeks. If only there were a way to restore electricity to a home during and after a severe weather episode! A whole home generator installation is the answer!

Of course, whole home generators are a solution that can now provide adequate electricity during a power outage of any length. Recent advances in technology and availability have put generators within reach of most homeowners. However, the installation of a new generator is not a do-it-yourself task. If you are considering purchasing a whole home generator, call AirPro Houston for a free consultation for your purchase to help you make these decisions.

Sizing Your Whole Home Generator for Any Power Outage

1. Finding the size generator. This decision is based on the size of the home and the electrical needs of the home. It accounts for the appliances that require 220 volts, such as the HVAC system, an electric range, and the water heater, but it also includes the lighting circuits, the refrigerator, the freezer, and communication devices.

The key to sizing a generator is to calculate the sum of the starting demand for the home’s appliances and add 25%. This ensures the generator can handle the load apart from the power grid, to give peace of mind when needed. An electrical consultant will be very helpful in making this calculation.

1. Determining the fuel type. Does your neighborhood have a natural gas utility? If so, this makes the fuel source easy. If not, propane might be an option. If neither is an option, is there adequate storage for some initial gasoline or diesel supplies? The storage must be separated from the home. A consultation will explore all of the fuel options and determine the best fit.
2. Proper placement. A whole home generator is a permanent addition to the landscaping of a home. It must be placed at least 18” from the home and at least 5’ from windows, doors, and fresh air intakes to ensure the exhaust from the generator does not enter the home. It must also be positioned 5’ from openings in neighboring homes and preferably away from bedroom windows to avoid annoying neighbors. Local building codes may require further guidance. Some locations require that generators be elevated above flooding dangers. With so many considerations, some expert advice will be welcomed.
3. Pricing decisions. The size of the generator, the type of fuel, and installation considerations are key to pricing, but are not the only factors. Brands and auxiliary features also figure into the price.

An additional feature of every generator must be a transfer switch.

• When the power grid goes down, the home is still connected to the grid.
• The generator creates electricity and energizes the home’s network
• The generator is also capable of energizing the power grid, which endangers repair crews and neighboring homes.

The transfer switch automatically engages when the power grid is interrupted and calls for the generator to start within seconds. When power is restored, the transfer switch turns the generator off and restores contact with the power grid.

Stop Guessing: Let Air Pro Houston Help With Your Whole Home Generator Selection

Don’t risk purchasing a whole home generator that is too small or improperly fueled for your needs. The process of calculating electrical load, selecting fuel, and ensuring code-compliant placement requires expert knowledge. Call AirPro Houston today for a free, comprehensive consultation to guide your purchase and ensure your home is fully protected. Our experts will help you make the right decisions for total peace of mind during any outage.

With our four decades of experience as residential electricians, AirPro Houston provides you with answers to your questions and assists with your whole home generator installation. Call our residential electrician team at 281-880-8805.