Solar Power

The SolarMan arrived at 7:00am. I didn't think he would but he lives round the corner and is doing our quick job on the way to his main job.  It was an exact like for like swap of the old for the new unit.  With some effort the new inverter was placed on the wall and connected up with no visible sign it had turned on.  After some fiddling he goes 'I wonder if it needs the sun!'  Derr it was still dark. About an hour later all seems to be working with readings up to 600 W and it is a completely cloudy day.