Electricity on yachts or boats can be provided by the main motors, generators, batteries, solar cells, or a combination of the above.Most sailing yachts have an engine alternator as a primary power source, with additional alternative energy sources to top this up and, on occasions, supply all power needs. Also diesel generators were more commonly fitted, sometimes along with other sources such as wind and water turbines, and solar panels. Indeed, wind and water sources were popular in all size ranges except those above 56ft – the larger yachts tended towards shaft generators and solar panels for additional power.
Take in consider that refrigerators on boats are not the same as the one you have at home ! They have no exact temperature cooling abilities. They only cool when the motor is running so consider that your fridge may not keep everything as cold as you like. The fridge and freezer are often combined. So, before you start out with lots of ice in the fridge, run your engine every day to cool off the fridge or you have try to go to places- ports which are equipped with electricity.