@livinglava,
Quote:If there are coolers now that can keep ice frozen for two weeks without power, it must be possible to design a refrigerator/freezer that can stay cold all night while the sun isn't shining.
We're off grid for electricity. Our fridge/freezer has genuine spray-foam insulation, (as opposed to loose fill) and the bottom freezer section has 70 mm thick walls and door, so it is very efficient in design. Uses just 4 amps at 27 volts, but only when running.
It's 210 litres capacity, so plenty big enough for two of us, though I have a 41 litre portable fridge as well, in case we want some beer, or buy lots of fruit.
Surprisingly easy to establish an off-grid power supply. The technology is improving bigtime. Can run air conditioning all day when the sun is shining, and set it to switch off about midnight.