A chest freezer is 10 TIMES more energy efficient than a standing one. In a nutshell, if you need 1 solar panel to power a chest freezer you would need 10 panels to power a standing one! I’ve been hesitant to get a chest freezer because it doesn’t seem as easily organized but I’m willing to do a little extra organizing in order to benefit from the savings of a chest version. Read more about it here at Off-Grid.
“The theory is that a chest freezer will use less power because the horizontal lid doesn’t let cold air fall out when it’s opened, and it has very thick insulation compared to a fridge.”