Industrial Revolution 2

Technology Review: Cheap, Off-Grid Cooling: “A startup based in Cambridge, MA, has developed a new solar-powered refrigeration system for food storage in Indian villages that are off the grid. Promethean Power Systems’ design is a hybrid of conventional compressor-based refrigeration and thermoelectric materials–semiconductors that convert electricity into cooling and vice versa.”

(Via Technology Review: Cheap, Off-Grid Cooling.)

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