Can people please help me anticipate energy requirements for my Moris Justine 36?
I am considering switching from engine
to 12V with solar
. I have two Group 31 batteries which were new in 2007 and still charge to 14.1 V and do not drop below 12.5 in a day's usage. I have a 90 Amp alternator
and a Balmar regulator
. I have never seen my energy use exceed 5A at any given moment. During the day I currently run an autopilot
and rarely might use radar
. At night energy usage seems to be mostly lights as we have foot pumpsfor water
, iPod for entertainment, a portable inverter
that charges phones--all with low energy requirements. We have a manual windlass
and no electric
winches. We currently run the engine
one hour per day in Maine
. We are considering the switch because the current
engine-driven fridge needs a new condenser and because running the engine for an hour per day is onerous for us. We prefer to just sail and anchor
. We plan to go to the tropics. The insulation
is 4". A five pound block of ice is gone in 4 days.
I am considering the Sea Frost air and water
cooled with 2 plates. I would want to add enough solar
so that on at least 75% of the days I would not need to use the engine to charge my batteries. I do not cover enough ground to have a hydro generator
and do not particularly want wind
. How much solar will I need, do I need a bigger battery
bank or alternator
, other things I am not thinking about? Thanks.