Photovoltaic Panels

  • REC 250w Panels

    The 250w panels are 165cm x 99cm 1.6335m^2 so efficiency at 1000watts per m^2 is 15.3% (250 divided by 1634) I am a bit put out by the physical size and have thought I probably only needed one not 4 ?? Initially I set up a single panel to charge one of… more »