DonQI Urban Windturbine
Small windturbine with venturi for additional gain. According to manufacturer faq designed to generate 1400-1800 kwh/year. Diameter 2 m, 90 kg weight. Locations where this type of turbine is installed here. Saves 680 kg CO2/year at a minimum. In the Netherlands expect 22 euro cent per kwh returned into the grid. The design is special in that magnets are attached to the rotor blades, making the rotor a generator at the same time. Recently DonQI was acquired by the UK company Hidden Renewable Energy Limited. Price indication 6500 euro.