is it open source? would you like to explain how we can build one?
seems like it's an evacuated tube on a concentrator trough. How many square feet of area does it cover? How big is the tube? how do you make the seal between the tube and the food tray?
I've seen a similar system that heats
water in those tubes, creates steam, and then uses the steam for cooking. With an insulated thermal mass, you could cook 24/7, and inside the home.
Your design looks interesting, and I hope you'll share some details to help people experiment with it. It may have potential.