"NPower provides a complete 1800 watt wind power solution Now you can put the power of alternative energy to use with this complete wind power energy package. Capture, store and deliver the power you need for a variety of applications, including your home or cabin. Depending on your level of expertise, professional installation may be required for this item. Alternative Power Collection Yes, Amps 220, Automatic Switch Back Yes, Hardwired Yes, Power Volts 12, Running Watts 1,400, Surge Watts 1,800, Batteries qty. 2, Battery Type 12V, Extended Run No, Allows Backfeeding of Power No, Dimensions L x W x H in. Varies, Electrician Required Possibly, depending on expertise, Standby Unit No, Flex Standby No, Modified Sine Wave Yes, Rechargeable Battery Bank Yes, Run Time hrs. 220 Amp Hours, Solar Power Compatible Yes, Works With Gas Generator Yes. The Sunforce 600 Watt wind turbine is the ideal choice for off-grid power requirements. Charging begins at wind speeds as low as 4MPH, providing clean green battery charging. Industry leading multi layered braking mechanisms allow for confidence under high wind conditions. Includes MPPT maximum power point tracking charge controller, which optimizes power production. Aluminum alloy construction with nylon and fiberglass blades 52in. blade diameter. Optional tower mounting kit Item# 121072 is sold separately. 12V, 110Ah UPG AGM absorbed glass mat batteries are shock-resistant and maintenance-free, producing higher cranking amps, extremely low 1-3 self-discharge rate and greater vibration resistance. Non-hazardous, non-spillable battery design requires no water additions and rugged construction withstands harsh conditions. Two batteries included in this offer, providing a 12V, 220Ah system. The Xantrex PowerHub 1800 is an ideal power solution, with advanced technology that lets user harvest energy from multiple power sources and convert it to AC power. Combines an inverter/charger with batteries that can store up to 400Ah of energy. Can be hardwired into a home's AC power system or devices can plug into 4 AC receptacles on the PowerHub. Automatic transfer switch ensures seamless transfer of your electrical loads to its backup batteries. Modular design allows user to add more battery capacity to extend backup power access for longer periods of time. 20in.L x 14in.W x 14in.H. Once your system is in place, you can expand it further with additional solar panels, wind turbine or portable generator, depending on your needs."