NOVELTY - A solar concentrator system has a solar concentrator array (4) of adjustable optical elements. The elements are coupled to an electric wind motive device (1). The electric wind device produces a propelling electric wind force. The electric wind force is created by emission from the electric wind device by at least one of the group that consists of electrons, negative ions, positive ions, and neutrals. The force produces an alignment of the optical elements to track and focus sunlight into a receiver e.g. group of solar cells.    USE - Solar concentrator system. Uses include but are not limited to a rooftop, in the ground and other applications where much weight cannot be tolerated.    ADVANTAGE - The improved solar concentrator is more reliable and lighter since the expensive, bulky, and heavy motors are no longer needed. The system provides ease of calibration, and speedily response in producing a given desired motion or deflection by utilizing an electric wind. The system allows the electric field and the motive force to be constant, independent of deflection, linear motion, or rotation. The power requirements to produce the electric wind by the different mechanisms are moderate. The system is more amenable to miniaturization such as required in nanotechnology. The system is more robust regarding whisker lifetime. The system is tolerant of random whisker depletion since the emitted current can be maintained constant by increasing the voltage to get the same force and the same deflection. The calibration can be done with respect to current rather than voltage so that the effects of whisker tip dulling can be mitigated both by regeneration and by separate control of emission. The combination of thermal elevation and field elevation capability in the same cathode permits a regeneration of electric field enhancing whiskers on the cathode.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for    (1) method of concentrating light;    (2) concentrator apparatus    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of an electric wind motive device for mirror alignment that produces a force by the emission of electrons.    Electric wind motive device (1)    Whisker (2)    Electrode (3)    Solar concentrator array (4)    Field free region (5)