Backup Generator Cost Calculator
Backup Cost
Estimate the cost of a whole-home backup generator including installation and transfer switch
Formula
Total = (Unit Cost x Fuel Mod) + Transfer Switch + Electrical + Fuel Line + Pad + Permits
Frequently Asked Questions
How much does a whole-home generator cost?
A standby generator costs $5,000 to $15,000 installed. A 22 kW unit that powers a whole home typically costs $8,000 to $12,000 with installation.
What size generator do I need for my house?
A 10 kW generator covers essential circuits. A 16-22 kW unit powers most or all of a typical home. Large homes with central AC may need 30 kW or more.