Finally attained, under the heung yee kuk many times for, New Territories, the chief executive secretary lam regard it. 'Address' ease restrictions on ding house rooftop solar panel installation is put forward, it is understood that highly restricted by 1. 5 meters to relax to 2. 5 meters, but solar panels can only half of ding house roof area is about 350 feet, and may not be around the back cover. With solar panels, said technology can build a waterproof, seamless solar panels for roof cover, disguised to ding house more than a layer of space use, Hong Kong more than 40000 houses both benefit.