Decided to add to existing roof array. Roof array gets quite a bit of shading from trees and especially in winter ends up with a very short solar day. It faces south east.   New array will be ground mounted vertically, more optimised for winter generation than summer. The vertical is also to protect from bits that can fall from overhanging trees.   So doing it on the cheap and myself, except the electric hookup.   Panels 12x 380W, 2 years previously installed life,