Tags: energy

In the world, 80% of the energy used is produced by burning fossil fuels, including oil, coal, methane. 
Plants that use fossil fuels generate polluting gases that damage the environment. In recent years, to protect the environment and to compensate for the growing demand for energy, states around the world have committed themselves to pursuing a model of sustainable development, including the exploitation of kinetic energy produced by wind.
The need to find alternative sources of energy spread following the 1973 economic crisis, when the Arab countries raised the price of oil which caused, among other things, the increase in the price of electricity, consequently increased among the States the awareness of the exhaustion of fossil fuels and therefore the need to seek alternative and renewable resources.
By way of example, an onshore wind farm consisting of 30 wind turbines of 300 kW each in an area where the wind blows at a speed of about 25 km / h can produce 20 million kWh per year, or the requirement of about 7000. families. To achieve the same result, a coal plant would release 22 tons of carbon dioxide, 125 tons of sulfur dioxide and 43 tons of nitrogen oxide into the air.