RoofMill™ HO-4.2kW (High Output) 3 Rooftop Turbine Wind/Solar, Complete Kit (NO INVERTER) RoofMill™ complete Off-Grid Wind/Solar 3 Rooftop Turbine Home Energy Kit, HO-4.2kW, Maximum Output 4200 watts, includes 3 HO Wind Turbines, Blades, Cones, Rotors, Tails, Roofmount Kits, Charge Controllers, 6 Solar Panel Kit, Hardware, and NO Inverter. This is an HO Hybrid Wind/Solar Power system with maximum output of 4200 watts. Kit has all required components. Custom config for existing 24v battery bank & inverter, and has everything but some required wiring. Price: $13,890 ea. - - - Quantity Discount Avail. for 5 or More Units Quantity:   Product Details