However much you may like grilling food on a warm day, you probably don't like dealing with gas tanks or other typical grill hassles... and most solar cookers won't help much if it's overcast outside. The upcoming GoSun Grill might be a smarter way to handle those backyard shindigs, however. It can bake, boil and roast meals for eight people using a sunlight-powered thermal battery that will keep cooking no matter how gloomy it gets outside. Yes, you can have some grilled chicken at the beach even if it starts raining. The reflector-based system also doesn't require you to flip your food, and it shouldn't dry out your moister meats and veggies.