NOVELTY - Two rotors (54,56) mounted adjacent to one another coaxially, rotates in opposite direction, when encountered by a wind in any direction. A generator (71) which is placed in between the rotors has field (74) to drive the armature (76). The field is connected to one rotor and the armature is connected to the another rotor.    USE - Double speed Savonius rotor generator.    ADVANTAGE - Control unit controls the excessive speed of the rotors in the double speed Savonius rotor system, in order to provide regenerative breaking on the rotor to cause additional power generation. The generating unit is protected from moisture by a cylindrical housing, thereby making the device well suited for use in wet and damp condition. The control system facilitates constantly maintained non-varying power generation at the desired level with predetermined frequency using frequency converting circuit. The use of silicon carbide for manufacturing generation unit, reduces the size, facilitates to operate over wide range of temperature and provides extremely long and reliable life. Facilitates horizontal and inclined positioning by suitable supports. Rotors are made of plastic to reduce it weight and provided with ball bearings at each end of unit, for free rotation.    DETAILED DESCRIPTION - Semicircular blades (62,64) are attached in between circular end plates (58,60) of each rotor. The lower side circular end plate of rotor (54) and the upper side circular end plate of rotor (56) are adjacent to each other. The field and the armature are carried by individual end plates of the rotors. The two rotors are supported on a central pipe (66) along the axis of common rotation. The adjacent end plates which are spaced axially from one another, form a space in between, covered by a cylindrical housing (82).    DESCRIPTION OF DRAWING(S) - The figure shows the fragmentary perspective and exploded views of double speed Savonius wind or water driven electrical power generating energy recovering apparatus.    Rotors (54,56)    Circular end plates (58,60)    Semicircular blades (62,64)    Central pipe (66)    Generator (71)    Field (74)    Armature (76)    Cylindrical housing (82)