SolSource is a portable solar-powered stove. No gas or charcoal needed. Made by One Earth Designs. One Earth Designs recognizes better, cleaner and more efficient ways to meet our future energy needs. Nature has already given us inspiration in the form of photosynthesis, which turns sunlight efficiently into energy and storing it in organic molecules for later use. With that inspiration, we have developed technologies that are 92% efficient in turning sunlight into energy (heat) directly. Our SolSource brand of solar cookers are the most efficient on the market. We are also developing technologies that can store this energy in organic compounds.