 s  g A propeller driven in rotation by the force e of the wind allows the production of mechanical or electrical energy in any sufficiently windy place. The wind energy captured on the blades drives the rotor which, coupled to a generator, converts mechanical energy into electrical energy. The amount of energy produced by a wind turbine depends mainly on the speed of the wind but also on the surface swept by the blades and the density of the air. The Algerian EnR program initially plans, over the period 2011-2013, the installation of the first wind farm with a power of 10 MW in Adrar. Between p 2014 and 2015, two wind farms of 20 MW each should be built. Studies will be carried out to identify favorable locations in order to carry out e other projects over the period 2016-2030 e for a power of approximately 1,700 MW.