Off-Grid Solar Grill Can Store Energy & Cook at Night With Zero Electricity

This is a really cool invention that could revolutionize cooking around the world. It’s called this Wilson Solar Grill. This grill can not only cook your food when the sun is out, but it is able to harness the heat energy so you are able to cook food at night — long after the sun has gone down. The first question asked is obviously, how does this grill work? This solar grill utilizes a fresnel lens that heats Lithium Nitrate. According to Wikipedia, Lithium nitrate “is the lithium salt of nitric acid. It is made by reacting lithium carbonate or lithium hydroxide with nitric acid.”

The Wilson Grill can actively store heat energy it accumulates from the sun for up to 25 hours. The convective heat that is released can reach amazing temperatures of up to 450 degrees.

This technology used for solar cooking such as this comes courtesy of MIT professor David Wilson. The wide range of uses for this technology goes beyond cooking alone. With the technology, you could easily store heat energy and use it to supplement heat in your home, heat water used for cooking, washing, or bathing, and people are already looking at this technology to generate electricity as well. Since heat is energy, the energy the Wilson Grill demonstrates should be able to be converted to electricity without a lot of modifications. Since heat is the source, this new technology could quite successfully provide it.

Just to note, the Wilson Grill is a concept product. It is backed by real technology and science. Since the sun is the most powerful powerful source of energy known to man, capturing the sun’s energy with fresnel lenses and storing the heat energy is possible and is already being done.

Recommended Products

Where to Buy
LeJoy Garden Portable Solar Grill
Hiosun Portable Solar Cooker
SolSource Classic Solar Cooker
All American Sun Oven
GOSUN Fusion Solar Oven - Hybrid Electric Grill


The Wilson Solar Grill is indeed a great equipment to use and it makes cooking possible even without electricity. But aside from that, there are also many similar grills that can work through solar power. If you’re looking for other options, here are some of the best ones we can recommend.

1. LeJoy Garden Portable Solar Grill

This portable solar grill will enable you to cook a meal in less than 15 minutes, and it can reach temperatures up to 626 degrees F in full sunlight. It can utilize every drop of sunshine, in fact, even during the winter season, you can still use it to cook a meal. This solar grill does not have smoke and fire. It also does not require any electricity and fuel. You just simply have to load it with food. You can use it to grill, roast, steam, sauté, and even bake. And if you keep the tray closed, it can keep your food hot for hours’ even if it’s not under the sun.

2. Hiosun Portable Solar Cooker

This is a smoke-free and zero pollution solar cooker that will help you create an amazing meal in just a few minutes. It is made of 304 culinary grade stainless steel, beech, mirror aluminum and violet gold vacuum heat collecting glass, making it safe to cook for up to 550 degrees F. With this solar cooker, you will be able to prepare different foods such as potatoes, broccoli, bacon, chicken wings, and more without the use of electricity or fuel. It is perfect for camping, parties, or even on a simple afternoon at home or in your garden.

3. SolSource Classic Solar Cooker

This solar cooker is 100 percent sun powered and there’s no need for propane, gas, fire, or electrical power. It harnesses the power of the sun by reflecting and intensifying its rays toward your cookware. This solar cooker can reach temperatures comparable to kitchen ovens and aside from that, it can also reach those temperatures five times faster compared to a charcoal grill. It will also allow you to control the temperature by adjusting the reflectors. With this solar cooker, you will be able to cook healthy foods without getting soot or ash in your food like with charcoal grills.

4. All American Sun Oven

This sun oven will allow you to cook, bake, dehydrate, and boil foods with just the power of the sun. It is lightweight and portable, and can reach 360 to 400 degrees F. It comes with a dehydrating and baking rack set, easy to stock pots with lids, and loaf pans. This will enable you to cook food anywhere without the use of electricity and fuel. Just simply put it in direct sunlight and you’re ready to cook. It can be used in every day cooking whether in your backyard, at parties, at picnics, or any outdoor trips. It is also essential to have at home in case of power outages.

5. Outdoor Portable Solar Grill

This solar grill can help you cook a meal in just 20 minutes because it can reach temperatures up to 550 degrees F. You just have to load it with foods and relax because there’s no monitoring required. This solar grill can also retain the flavor and nutrition of your food. You can use it not just to grill foods but to roast, steam, and sauté as well. There is also no fire hazard with this solar grill because its solar vacuum tube cooking chamber has a near perfect layer of insulation which keeps heat in and cold out. You can also easily store or carry it because its reflectors and base fold into a clamshell case with carrying handles.

These are some of the other solar grills that you might find useful as a comparison reference against traditional grills. Having a solar powered grill is essential because it also helps us become prepared in case of power outages. Having one will enable us to still cook delicious and nutritious foods even in times of emergencies.