solar-powered refrigeration system

Promethean Power Systems is developing a solar-powered refrigeration system for commercial cold-storage applications in off-grid and partially electrified areas of developing countries. Their refrigeration technology will enable food suppliers to store and preserve perishable food items—such as milk, fruits and vegetables—without the need for expensive diesel-powered generators. The refrigeration technology is works with thermoelectric cooling based on the Peltier effect discovered by Jean Peltier in 1834. When a current is passed through a circuit of two dissimilar conductors, there will be a rise or fall in temperature at the junction depending on the direction of the current flow.

Will thermoelectric cooling emerge as a disruptive technology that will some day displace conventional, vapor-compressor refrigeration in consumer and commercial applications throughout the world.