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Solar-Powered Refrigeration System

This NASA report describes a solar-powered refrigeration system that uses a variable speed, direct current (DC) vapor compression cooling system, connected to a solar photovoltaic panel. The system, patented by NASA, eliminates reliance on an electric grid, requires no batteries and stores thermal energy for efficient use when sunlight is absent. The system is specifically ideal for off-grid applications, and works well for vaccine coolers and solar-ice makers, among other things. Some of the contexts of this system’s application has been found in various agrisolar operations.