Energy BrainBlog

Each wind turbine has a rated capacity, which depends on the length of the rotor blades and the power rating of the generator. The turbine produces at the rated capacity at a certain wind speed.

Among the many possible technical designs for power generation, turbines with a horizontal axis and three blades oriented towards the wind (so-called upwind turbines) are the most successful ones. Depending on the field of application wind turbines with a vertical axis or with more or less than three blades have been developed for niche applications.

Air masses that move are called wind. It is created by radiation from the sun onto the earth. Incident irradiation causes the air to heat up, where air with higher temperature has a lower density. The result is the creation of high and low pressure areas.

Depending on geographic conditions different types of hydro power stations are being used.

Photovoltaik (PV) power plants transform sunlight directly into electricity via the photoelectric effect. Specifically processed materials, such as silicon are necessary for that effect to occur. The materials are doped with other materials for better performance.