Michael Watterson wrote:
> Also I'd set the elevation to be optimal for midwinter rather than the
> "average".

That's backwards.  Solar cells are more efficient when cold.  At 28 deg
latitude, the sun isn't going to be that much weaker in winter due to
traversing more atmosphere on the way to the panel.

Apparently the power will be running some electronics.  He hasn't said
anything that indicates the load will vary seasonally.  If the power were
used for heating, then optimizing for winter might make some sense, or if
you knew that location was significantly more cloudy in winter.

Considering all the competing effects together, just pointing it down from
vertical by latitude is simpler and never too wrong.


********************************************************************
Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products
(978) 742-9014.  Gold level PIC consultants since 2000.
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.