Refrigeration of food consumes a large amount of energy (about 21%) in an average home. Reducing the energy consumption for cooling, German designer Stefan Ulrich has devised a fridge concept that harvests the leftover energy from the kitchen and uses it for cooling through an innovative combination of new materials. The “Neff,” as the designer calls the portable fridge, can either be mounted on the wall or you may simply place it on a table, allowing fast and easy access to the most commonly used groceries in the kitchen. Once fully charged, you may remove the fridge from the wall or table and place it wherever you want to keep the food cool for hours. The portable fridge modules not only reduce the energy bills in a great way but also help in reducing the carbon footprints of the users.