Solar & Wind Power

Installed the Wind Bugger 216 watts, a Kyocera 80 watt, and two Grape 100 watt flexible solar panels.  Flexcharge NC25A-12 is the controller I choose, but I cannot run the Wind Bugger at the same time as the solar panels, without possibly exceeding the Flexcharge 25 amp capability.  Already time to upgrade.  I need to calculate the number of years break even point, probably at least 8 or more.  The excess power from the divert goes to the hot water.