Originally Posted By BZH
... you need the sun directly impinging on the panel. A slight angle off of 90 degrees (between panel and incoming light) kills the panel. ...


A common misconception. Solar panels are charged by daylight, not sunlight. More than just semantics there. Direct sunlight is certainly the most efficient, but any daylight can charge a panel, even on cloudy days, since some light filters through the clouds. They just won't charge very much/put out much power on such days.