The largest windfarm in the world is Gansu Wind Farm, China. It has an installed capacity of 20,000 MW (20 GW). That means that it can produce enough electricity to power up 20 million homes.
Gansu Wind Farm was finished in 2013 and comprises 131 separate wind turbines. The highest one stands at 227 meters.

The second largest wind farm in the world is also in China and it’s called Longyuan Haian Jiangjiasha Wind Power Base. It has an installed capacity of 15,000 MW (15 GW). That is enough to power up 15 million homes.
It was finished in 2016 and comprises 166 turbines. The highest one stands at 175 meters.
The third largest wind farm in the world is Thanet Wind Farm, UK. It has an installed capacity of 756 MW (0.75 GW). That means it can power up 0.75 million homes.
It was finished in 2008 and comprises 67 turbines. The highest one stands at 180 meters.
The fourth largest wind farm in the world is also in the UK. It’s called London Array and has an installed capacity of 630 MW (0.6 GW). That means it can power up 0.6 million homes.
It was finished in 2013 and comprises 175 turbines, which are mostly rated at 3.6 megawatts each. However there are nine at 6 megawatts. The highest one stands at 190 meters.
The fifth largest windfarm in the world is also in the UK. It’s called Westermost Rough and has an installed capacity of 300 MW (0.3 GW). That means it can power up 0.3 million homes.
It was finished in 2013 and comprises 47 turbines, which are mostly rated at 3 megawatts each. However, there are 4 at 5 megawatts and 1 at 7.5 megawatts. The highest stands at 182 meters.

The sixth largest windfarm in the world is also in the UK. It’s called Clyde Wind Farm and has an installed capacity of 300 MW (0.3 GW). That means it can power up 0.3 million homes.
It was finished in 2012 and comprises 67 turbines, which are mostly rated at 2 megawatts each. However, there is one at 4 megawatts and another at 7 megawatts. The highest stands at 137 meters.
The seventh largest windfarm in the world is also in the UK. It’s called Robin Rigg Wind Farm and has an installed capacity of 210 MW (0.21 GW). That means it can power up 0.21 million homes.
It was finished in 2013 and comprises 60 turbines, which are all rated at 3 megawatts each. The highest stand at 150 meters.
The eighth largest windfarm in the world is also in the UK. It’s called Galloper Wind Farm and has an installed capacity of 185 MW (0.18 GW). That means it can power up 0.18 million homes.
It was finished in 2012 and comprises 51 turbines, which are mostly rated at 2 megawatts each. However, there is one at 3 megawatts and another at 5 megawatts. The highest stands at 147 meters.

The ninth largest windfarm in the world is also in the UK. It’s called Sheringham Shoal Offshore Wind Farm and has an installed capacity of 180 MW (0.18 GW). That means it can power up 0.18 million homes.
It was finished in 2012 and comprises 40 turbines, which are mostly rated at 3.6 megawatts each. However, there is one at 5 megawatts and another at 7.5 megawatts. The highest stands at 160 meters.
So, there you have it. The biggest wind farm in the world is Gansu Wind Farm in China with an installed capacity of 20 GW (20,000 MW) and it’s followed by Longyuan Haian Jiangjiasha Wind Power Base with 15 GW (15,000 MW).