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Solar ice makers
A solar ice maker would be useful for disaster relief, refugee camps, and developing nations, as well as camping and simply reducing energy use.
- Researchers at San Jose State University in California say they have created an ice making machine that uses the heat from sunlight to power a chemical reaction. Solar Ice Maker: No Moving Parts, No Electricity, greenUPGRADER, September 17, 2008.
- The Design and Development of a Solar Powered Refrigerator
Researchers at California Polytechnic State University in San Luis Obispo, California have created an ice machine that uses solar energy and can possibly pair with numerous other applications like a charging station, LED lighting, solar cooker, or aquaponics systems. 
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