NOVELTY - The windmill has flat wide surfaced shutters, sheets, or blades fixed one above the other to frames (2) through hinges. The shutters are also distributed in sets fixed to a central shaft through props. The shutters in each set are distributed into upper and lower halves. When wind pressure acts on the windmill, the shutters in the upper half close against a stopper fixed to the frames, while the shutters in the lower half open without resistance. The props, including a central prop, include wheels movable on rails on the ground.    USE - Flat louvered/shuttered windmill for use with pump for extracting water and generator for producing electricity. Can also be used for charging batteries of electric vehicles or electronic items (claimed), as well as providing heating, cooling and illumination for trains.    ADVANTAGE - The windmill can be used to generate electricity or uplift underground water by using wind at lower speed and at lower cost but with higher efficiency. The windmill can provide higher output of energy while being sustained on stable infrastructure, and can be grouped together with other windmills in rows or columns when installed in small areas. Since only one generator is required for number of windmills, costs are further reduced. The windmills can be shifted from one location to another using foldable, detachable components for reassembly at new locations where seasonal wind is available. The windmills can also run for number of months by merely using difference in wind speeds at height beyond 1000 feet and at ground level. Solar cells may be equipped on the shutters to generate solar energy together with wind energy. The windmills may be made small for installation on electric or hybrid vehicles or trains to charge their batteries, or for charging electronic items.    DETAILED DESCRIPTION - The windmill has flat wide surfaced shutters, sheets, or blades fixed one above the other to frames (2) through hinges. The shutters are also distributed in sets fixed to a central shaft through props. The shutters in each set are distributed into upper and lower halves. When wind pressure acts on the windmill, the shutters in the upper half close against a stopper fixed to the frames, while the shutters in the lower half open without resistance. The props, including a central prop, include wheels movable on rails on the ground. The central shaft has a gearbox attached to a generator or a pump. The windmills are also provided in rows or columns. The props are made of fibers, glass, aluminum, steel, reinforced cement concrete, metal alloys, wood, or bamboos. The shaft is made of aluminum, steel, bamboos, wood, or metal alloys. The shutters are made of wood, ply, aluminum sheets, alloy sheets, or bamboos arranged in rows.    DESCRIPTION OF DRAWING(S) - The drawing shows two side views of a windmill.    Frames (2)    Portions of frames (PORTION A,PORTION B,PORTION C,PORTION D)