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•Solar windmill, according to this invention has several operation modes, or to be more precise has four working regimes: propulsion by the energy of the wind, propulsion by the energy of the Sun, propulsion with the energy of the wind and the Sun, and at last a pump regime.

•Solar windmill, powered on wind energy, collect the air flow close to the ground with part of collector 1 that is open to receive the wind w, with sectors 19, of the collector 1, which are at the windy side (or facing the wind). As transparent roofs 20, of the sectors 19 are semi swivelled around its edge axes (µ, η, ξ), so they can accept additional air from the wind flow and redirect it toward the centre of the collector 1, or the outlet of sector 19, toward the inlet of spiral intake (not numbered in the blueprint drawings), in other words through the space between spiral walls 18, toward the chimney 2. As space between partition walls 21 gets more and more narrow approaching the centre, and this reduction continues through spiral intake between spiral walls 18, looking at the chimney direction, so it is obvious that increased air pressure will acquire +++++++, in the collectors part 1. The air that is stuck in on entrance of the chimney 2, first must pass through the wind turbine rotor 27, to spin that rotor 27 and then to enter in to the chimney 2 in form of a swirl. Wind that flows around cap 3, creates the zone of increased air pressure ++++++++ (around the layer 39 with pattern without tiny holes) and the zone of decreased air pressure ---------- (around the layer 38 with pattern with tiny holes 45). That is how the air is propelled through the chimney from the zone with increased air pressure ++++++++ in collectors 1 surrounding area that is on the base level, up to zone of lowered air pressure ------------ around cap 3, and that has an significant impact on nominal power of chimney 2. With the use of collector 1, and the cap 3, more an updraft through the chimney 2, can be achieved, the power of chimney is increased, which is then manifested on the wind turbine rotor 27, which will tend to increase its rotation per minute (rpm), and finally it is manifested on the electric generator 32 as an increase of electric power.

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