> just had some solar panels installed and ended up on the East > facing roof section where is was supposed to be North facing East-facing will be most illuminated in the morning, and no direct illumination after that .... > I suggested put 7 panels facing North and 1 panel facing East ..... so if you wanted an early morning boost and most illumination until evening (and why not one facing West ?) I'd have thought that would be the most effective way I know MPPT inverters can be pretty smart and make the most of what's / watts available but it seems to me you're missing out on a lot of energy A quick Google - http://www.solarshop.com.au/blog/solar-myths/solar-myths-west-and-east-faci= ng-roofs-won-t-produce-very-much-electricity but I don't see why your panels weren't installed North-facing if it was not impractical to do so, unless East-facing meets either your energy needs or is all the inverter can handle. That said though, on a miserable winter's day they might be struggling. In the summer, excess or unuseable production from North-facing panels could be shunted or burnt off with a dummy load Joe=20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .