... even when we're not aboard. I put on a keel-cooled Frigoboat last year. Once the box and contents are cool is takes something like 30-35 AH per day, has a small freezer bin as well as a mid-sized box. The solar panels easily handle the load during the week when we're away from the boat. It is a real treat not to have to unload the box after each cruise, and to return to the boat with butter, drinks, ice, fruits etc already aboard from last week. Simplifies the whole process.