Principle: Trap heat energy by concentrating sunlight into a single point to produce heat required for cooking applications.
Operation: A solar cooker is a device which uses the energy of direct sunlight to heat, cook or pasteurize drink. Many solar cookers currently in use are relatively inexpensive, low-tech devices, although some are as powerful or as expensive as traditional stoves, and advanced, large-scale solar cookers can cook for hundreds of people. Because they use no fuel and cost nothing to operate.
Application: A Solar Cooker has the possibility to cook food for up to 10000 people if designed likewise.
- High-performance parabolic solar cookers can attain temperatures above 290 °C (550 °F). They can be used to grill meats, stir-fry vegetables, make soup, bake bread, and boil water in minutes.
- Conventional solar box cookers attain temperatures up to 165 °C (325 °F). They can sterilize water or prepare most foods that can be made in a conventional oven or stove, including bread, vegetables and meat over a period of hours.
- Solar cookers use no fuel. This saves cost as well as reducing environmental damage caused by fuel use. Since people cook on open fires using biomass fuels, solar cookers could have large economic and environmental benefits by reducing deforestation.