In order to increase public awareness of renewable energy sources, the Biosphère has acquired two wind turbines. Wind turbines, or aerogenerators, convert the wind’s kinetic energy into electricity. They do not produce any pollution and are a form of energy that is infinitely sustainable. Installed at the end of March on the highest platform of the building, inside the geodesic structure, the Biosphère’s two wind turbines are each of a different type.

The first, a domestic type with three blades, has a horizontal axis and has an average power output of 1.8 kilowatts (kW), based on an annual average wind speed of 20 km/hour. It produces approximately 4,800 kWh (kilowatt-hours) per year, or 13 kWh per day. This energy production represents approximately one quarter of the electricity consumption, including heat, for three to five people living in a single-family house. The second, a commercial-type turbine, has a vertical axis and has an output of 5 kW. This 5 metre diameter vertical-axis wind turbine is noiseless and is safer for birds