It turns out that human ingenuity has devised a myriad of designs for cooking with the sun, but most fall into one of three main categories: solar panel cookers, solar ovens and parabolic solar stoves. All three concepts are based on the same cool idea: to concentrate sunlight onto cookware, produce heat, and prepare food. The big difference is how they concentrate light.
Information from: *https://www.oneearthdesigns.com/blog/compare-solar-cookers/ *