On Fri, 18 Apr 2014 08:05:03 +0200, you wrote: > >Le 17/04/2014 09:08, Steve Blackmore a écrit : >> >> Modern panels are designed to work in daylight and don't need full >> Sunlight. >> >Well not really. There two main technologies, cristalline and amorphous. > >Cristalline cells needs full sunlight to deliver some usable power. >Their efficiency is better. > >Amorphous cells can use indirect light like you have on cloudy day. But >their efficiency is a little bit lower, wich is not a problem because >they are cheaper, so for the same peak power you will pay the same. but >you need more surface to install them.
There are Hybrid cells too - crystalline and thin film mix. In order of purchase price and roughly speaking Poly - 11-15% efficient Mono - 13-17% Hybrids - 17%+ Typical panels over here in UK are 1.2 to 1.8 square metres in size and produce about 180-250W in daylight (NOT full sun). - That's at 52 deg North and are actual figures taken yesterday in overcast conditions on a commercial CHP installation I designed five years ago. Steve Blackmore -- ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
