What is a standby generator?
It is a generator mounted permanently outside the house and fueled by natural gas or propane. Through an automatic transfer switch, it starts on its own when the grid fails and stops once power is restored.
How much does a standby generator cost?
For a standard whole-house standby unit, HomeGuide's installed range is roughly $6,000 to $11,000. Bigger generators or long runs can climb to $9,500 to $24,000. Expect Westchester prices toward the upper end, and plan around a written quote after a site visit.
Who will install my generator?
A local electrician or generator installer who serves your town. They quote you directly, pull permits and do the work.
What size generator do I need?
That depends on the loads you want covered more than the size of the house. An installer works it out from a load calculation that lists your heating, cooling, appliances and pumps.
Natural gas or propane?
Natural gas is simplest if your street has service and your meter can supply enough. Propane works anywhere but needs a tank and deliveries.
Do I need a permit?
Almost always. Generator, transfer switch and panel work need permits and inspections in most villages and towns. The installer should pull them.
What does a transfer switch do?
It shifts your home from utility power to generator power and back, and it stops generator power from reaching the utility lines. Every standby generator needs one.
Is it safe to plug a portable generator into a wall outlet?
No. That is called backfeeding and it can injure utility workers and damage your wiring. Use a transfer switch or interlock installed by a licensed electrician.
Can I run a portable generator in the garage?
No. Never run a portable generator indoors, in a basement or in an attached garage. Carbon monoxide can build up quickly and kill. Keep it outside, away from windows and doors.
How often does a generator need service?
Most home standby units need service at least once a year, plus extra after long run times. Fixr puts yearly maintenance at about $200 to $500.
Will I need a panel upgrade?
Sometimes. Older or full panels may need work before a transfer switch or EV charger. An electrician will tell you during the site visit.
Can my generator charge an electric car?
Only if it is sized and wired for that. Many owners keep the EV charger off the backup circuits to save capacity.
How do I check an electrician's license?
In Westchester County, electrical work must be done by a county-licensed electrician or their employee. Ask for the license number and proof of insurance, and contact the Westchester County Department of Consumer Protection with questions.