On 8/21/06, Olin Lathrop wrote: > > Brian Riley wrote: > > Sadly not even close to true. The accepted figure for tracker gain > > is 10% tops. > > That doesn't add up mathematically. Unless I've really screwed up the > integrals (quite possible since I'm supposed to be getting home and am > rushed), it seems up to 57% gain is possible. That assumes that sunlight > is > the same strength and available for a whole 180 degrees and the tracker is > kept flat on to the sun as apposed to a fixed midday orientation. The curve of power available vs time of day ought to be gaussian or sinusoidal (can't remember which offhand), so those early and late hours don't actually add up to much in terms of joules in the can. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist