…are these not sold in stores? Really…

Nearly every household on Earth has a fridge that totally wastes at least 30 kwh of energy every month. Most of the energy is wasted every time you open the door. Cold air is heavier and falls out on the floor every time you open your fridge and warm air rises to fill the space it left. But with a top opening fridge; even if you leave the door wide open, gravity effortlessly leaves the heavy cold air inside.

A clever Australian inventor, Tom Chalko has converted a deep freeze into an incredibly efficient refrigerator that only has to run for a minute or two every hour to maintain normal fridge temperatures, using only about 100 watts of power a day.

The rest is here.