Standby Generator Installation
A standby generator automatically provides backup power during outages, keeping your lights, HVAC, refrigerator, and critical systems running. Unlike portable generators, standby units turn on within seconds of detecting a power loss and run on natural gas or propane.
Standby vs. Portable Generators
Understanding the difference between standby and portable generators helps you decide which is right for your situation:
- Standby generators are permanently installed outside your home and connected to your electrical panel. They start automatically within 10-30 seconds of a power outage and run on natural gas or propane. No manual setup, no extension cords, no refueling.
- Portable generators must be manually started, connected with extension cords, and refueled regularly. They power limited devices and cannot connect to your home's electrical panel without a transfer switch.
Standby generators are the clear choice for homeowners who experience frequent outages, have medical equipment that requires power, work from home, or simply want worry-free protection. They also protect against frozen pipes, sump pump failure, and food spoilage during extended outages.
Generator Sizing and Costs
Standby generators are sized in kilowatts (kW). The right size depends on what you want to power during an outage:
- Essential circuits (10-14 kW): Powers refrigerator, lighting, sump pump, and a few outlets. $3,500-$6,000 installed.
- Managed whole-home (16-20 kW): Powers most circuits with smart load management. Can run AC, well pump, and major appliances. $5,000-$10,000 installed.
- Full whole-home (22-26 kW): Powers everything including central AC, electric range, and EV charger simultaneously. $7,000-$15,000 installed.
Installation costs include the generator unit, concrete pad, automatic transfer switch, fuel line connection, and electrical work. Natural gas-powered generators have lower fuel costs and unlimited runtime. Propane generators require a tank (250-500 gallon) but work anywhere gas lines are not available.
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Get Free Generator QuotesChoosing a Generator Installer
Generator installation involves electrical, plumbing (gas line), and concrete work. Proper installation is critical for safety and reliability:
- Authorized dealer: Choose an installer authorized by the generator manufacturer (Generac, Kohler, Briggs & Stratton) for full warranty coverage and factory training
- Licensed electrician and plumber: Installation requires both electrical permits (transfer switch) and gas permits (fuel line connection)
- Proper placement: Generators must meet clearance requirements from doors, windows, and property lines. Local codes vary, and your installer should handle all permitting
- Load assessment: A quality installer performs a load calculation to size the generator correctly for your home's electrical needs
Frequently Asked Questions
Natural gas standby generators can run indefinitely since they are connected to the gas utility. Propane generators run until the tank is empty, typically 1-2 weeks on a 500-gallon tank depending on load.
Modern standby generators operate at 60-70 decibels, similar to a normal conversation or dishwasher. They are significantly quieter than portable generators (70-90 dB). Noise levels meet most residential noise ordinances.
Yes. Generators should be professionally serviced annually (oil change, filter replacement, battery check). Most units run a brief self-test weekly to ensure readiness. Annual maintenance costs $200-$400.
Yes. Standby generators add an estimated $3,000-$5,000 in home value and are an attractive feature for buyers, especially in areas with frequent power outages or extreme weather.