RoofMill™, 2 Turbine complete Grid Tied Wind/Solar Rooftop Home Energy Kit, HO-2.8 kW, Maximum Output 2800 watts, includes 2 HO Wind Turbines, Blades, Cones, Rotors, Tails, Roofmount Kits, Charge Controllers, 4 Solar Panel Kit, Hardware, and Grid-Tie System. This is an HO Hybrid Wind/Solar Power system with maximum output of 2800 watts. Kit has all required components. Customer must add batteries and some required wiring.