Thanks for the good ideas regarding the led lighting. Another big amp draw while cruising would be the nav system usage. I am Trying to plan for the days with the most energy draws. I think the need for some energy austerity on these big draw days is a big part of the answer. Thanks again
Does your boat currently have an amp meter on the panel (would show total amp boat draw)? If not, you should add one- gives a good indication of power use- check west marine for a selection. Once your panels are added, you can add an amp meter to the panels to indicate how much amps the panels are producing at any instant. This information will give a good indication of your energy balance.