On 8/21/06, Bob Axtell wrote: > To my delight, I have been given a shot at designing a solar tracking > system, > the arrays running at 24V. The arrays are very large, 14' sq and 18' sq. The > user is UNCONNECTED from the AC mains, running his entire business > from inverters attached to the system. > > Anybody have ideas? I know about (1) not allowing the moon to be tracked, > (2) end the day by moving the array to immediately catch the dawn sun > when it comes up, to minimize movement, and (3) the funny 4-diode array > to determine where the sun is.. > Search for MPPT (maximum power point tracker ) and Photovoltaic and you might get some interesting results. http://www.fsec.ucf.edu/pvt/pvbasics/ Regards, Xiaofan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist