•      In the part of the collector 1 that is on the leeward side, or the opposite side of wind direction w (with sectors 19 which are in leeward side of the collector 1) the electro mechanic valves 16, in their corresponding spiral intakes (not numbered in the blueprint drawings) are semi opened, or even closed and preferably automatically regulated. Collector 1 is centrally symmetric and constructed in the way that the sectors 19 which are in the wind can be additionally opened according to the wind direction w – or on windy side, and the other side rotated for 180˚away from the first, or leeward side is then out of the function, and does not have any effect on rotor 27, and if it is more appropriate it can be completely shut down with electro mechanic valves 16. Windy side or leeward side are in the correlation with wind direction, but as all of the sectors 19 of the collector 1, are identical, then all of them are able to catch the wind regardless of the wind direction.

• Solar windmill, with propulsion on the Sun energy only, works in a way that collector 1 allows Sunrays to pass through transparent roofs 20, to thermo accumulating slopes 7, and with constant heating of this slopes 7, the heat transfers to the air by convection, which is moved toward rotor 27, because it has been pushed by the colder and more dense air outside of the collector 1, almost radially through the collector 1, toward centre, and chimney 2.

•So collector 1 accepts and directs the air flow almost on the same way towards rotor 27 regardless of the cause of the air movement, whether is the wind or the Sun, only in the second case all electromagnetic valves 16 are completely opened, because the similar air pressure is expected in all sectors 19, of the lower part 5, of the collector 1, if  the Sun rays inclination angle isn’t too big, or if it is close to vertical like on equator, or with in the summer mounts in the North geographic regions, on that latitude. On the other side of the chimney 2, the cap 3 is in place and one side of the cap is heated by the Sun rays, which pass through transparent layers 38 and/or 39 and fall to the thermo accumulating layer 41, which transmits that energy to the surrounding air in air gap 40 and increase its potency to leave the cap 3, through additional openings 43 on the top, or on the back end of the cap 3, as well as on tiny holes 45, of the transparent layer 38, so again in this way cap 3 is used as an amplifier for the air stream out of the chimney2.