What transfer switch means
A transfer switch moves a house's circuits from utility power to a generator and back, so the generator can never feed power back into the utility lines.
Also called ATS, automatic transfer switch, interlock.
Where it matters on a electrical job
Standby generators use an automatic transfer switch; portable generator setups often use a manual switch or a listed panel interlock. Name which one in the estimate, since the price and the convenience differ a lot.
What it costs
For transfer switch, the closest koira.ai price is the whole house generator installation cost guide, near $10,000 for a typical job and $5,750 to $14,500 for most. The guide shows its sources and what moves the price. The whole house generator cost calculator prices a job line by line.
Work it out
- Free calculator: Whole house generator cost calculator
- Cost guide: Whole house generator installation cost
- Licensing: Electrical license rules by state
- Tools, templates and guides: Free electrical resources