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Wind turbines work on a very simple principle: the wind turns the blades, which causes the axis to rotate, which is attached to a generator, which produces DC electricity, which is then converted to AC via an inverter that can then be passed on to power your home. The stronger the wind, the more electricity is generated from the motion. That’s why we tend to see industrial scale wind farms with high towers and large blades located in the breeziest parts of the countryside, including offshore.

A turbine’s efficiency comes from how well it captures the power of the wind and turns it into a rotational torque that can then push electrons out from the generator and into the grid. The towers are normally made of steel but the blades can be manufactured from glass fibre or reinforced polyester that need to be strong yet light enough to turn in the wind. A single 1.8 MW wind turbine running at normal capacity will produce enough electricity in a year to feed 1,000 average homes