For wind turbines to work effectively, there must be three contributing factors:
1. The sun must unevenly heat the atmosphere.
2. There must be an uneven surface to the earth.
3. Our planet has to rotate.
Working together, these factors create wind. The wind is air in motion. Warm air weighs less than cold air, and when warm air rises and is replaced by cool air, the result is wind.
Because climates and environment differ across the globe, some countries, and their environments, are far better suited to this type of energy generation. That is also why we see wind turbines built, on the majority, at sea. Due to the fact, the air renewal rate is much higher, so too are the winds.