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. A 13 to 16 kW generator may suffice for smaller houses 1,500 sq.

It costs on average between $12,000 and $13,000 to install a new roof. A small- or medium-sized business will likely require a generator that produces between 10kW and 20kW, costing ium-sized business ...