Approximately 50 tonnes.
The wind turbine foundation steel bar with a diameter of 22 meters and a depth of 3 meters uses about 50 tons of steel bars and about 1,000 meters concrete cubes.
A wind turbine is an electrical device that converts wind energy into mechanical work, which causes the rotor to rotate and ultimately produces alternating current. Wind turbines generally consist of components such as a wind wheel, a generator (including devices), a steering (tail), a tower, a speed-limiting safety mechanism, and an energy storage device.