2KW system is a low Torque, low wind system, rated 2000w at 20 mph, startup wind speed is 4.47 mph. Wind/Solar Hybrid Charge Controller is included to convert AC to DC. Charge controller can handle 2000w wind load and 600w solar load. Hybrid inverter also has built-in dump load function. Hybrid controller has LCD display to show the charging current and battery voltage. Battery and inverter are not included, you can purchase batteries and inverters separately from our store. Inverter warnings: we don't recommend cheap inverters made in China, because they have serious quality problems and performance is unstable, service life is short on these cheap inverters. They are not UL listed, it won't pass safety inspection. If you are buying these cheap inverters, you run the risk of burning down your house and damage valuable items. Inverter recommendations: We recommend UL listed inverters made by Xantrex or Outback. Technical Specifications: Voltage: DC 48v (DC 120v upon request) Alternator: Direct drive, 3-Phase AC permanent magnet PMA with the most powerful neodymium magnets Rated Power Output: 2000 watts Max Power Output: 3000 watts Rated Speed: 400 RPM Rated Wind Speed: 9 m/s or 20 mph Start-up Wind Speed: 2 m/s or 4.47 mph Wind Blades: 3 blades per system Blade Material: Reinforced Fiber Glass Blade Diameter: 3.2 M (10.6 Feet) Tower Height: 8 Meters/26 Feet and up depending on siting area Pipe Size: 5.5" or more Diameter Steel Pipe Recommended Batteries: 8 x 200AH 12V AGM batteries (2 of battery banks, each battery bank has 4 batteries in series) Over speed Control: Mechanical auto furling