Yangzhou Shenzhou Wend-Driven Generator Co., Ltd. is a supplier based in China that lists wind turbines on Global Trade Plaza. The company offers a 50 kW model (Glb50kw) with a 13.8 m rotor diameter, fiberglass reinforced polyester blades, a Siemens 55 kW induction motor, helical gearbox, Mitsubishi PLC controller with Schneider contactors, GPRS/ADSL remote control and a 24 m hot-dip galvanized steel tower. It also lists a 10 kW upwind turbine with an 8.0 m GFRP rotor, three blades, 180 rpm rated speed, hydraulic yaw with auto/manual mode, 12 m hydraulic tower and an annual yield of 24,000 kWh. A smaller S-600 model rated at 600 W, 24 V DC features a 1.6 m carbon reinforced fiberglass rotor, three blades, PMG generator, dump-load protection and a 15-year designed life with a 2-year warranty.