|i have built a solar flower a la this design, with space to walk underneath it. The problem is, if i put wires away from the stem, they do not conduct energy. There is nothing wrong with the flower, because it will power a furnace directly attached to the stem, but it will not power anything attached to cables branching away from it. This also seems to affect any sort of energy generating device, as it also affects a wind farm i constructed, making it useless.
This is on IC2 v1.15 on Minecraft 1.8.1
This is, IMHO a very serious bug, and renders the mod completely non-functional for any type of power grid design.