ft. house costs $4,250 to $6,600. What size home generator do I need? A 17 to 20 kW generator is needed to run a whole house.

What is the average cost to have a Generac generator installed? The cost of a Generac generator ranges from $2,000 to $5,000 for a unit that can produce 7 to 24 kW, plus installation, which can cost ...