If you will always be connected to shore power
, that will work.
If you want refrigeration
away from the dock
, you would be far better off with a 12Vdc refrigeration system based on a Danfoss BD35 or BD50 compressor. I sell and install Nova Kool brand. These units will operate a reasonably insulated ice box of about 4 cu/ft and provide a small freezer compartment while consuming about 50 A-hrs per day.
Assuming you have 4 x group 27, lead-acid, deep cycle batteries in good condition, you have 400 A-hrs of rated capacity or 120A-hrs of usable capacity (with a 50% to 80% SOC cycle when away from shore power).
So assuming your daily consumption
total is about 100 A-hr / day, you will need to replenish this with some form of charging
For this size system, I would recommend the following:
- 20A min shore power battery charger
. (This will take about 18 hrs to fully charge batteries from down to 50% SOC.)
- 80 - 100 A alternator
with smart regulator
. (This will take about 2 hours to charge batteries from 50% to 80%.)
- 400W of solar
. (This will keep batteries topped on sunny days.)
- 400W wind generator
. (This will keep batteries topped up on windy days (15+knots).