Holy $800 dollars Batman! This solar powered grill can cook a meal for up to 8 people in about an hour without using any fuel. It uses aluminum reflectors to direct sunlight to the food (converts nearly 80% of entering sunlight) which is inside a borosilicate glass vacuum tube. Did I mention it costs $800? The GoSun Grill can cook meat, vegetables, stews, soups, and can even bake bread.