One More

Yeh pehle hi bata chuka hoon. Vacuum tubes my design install in restaurants, hotels, malls and supply thermal energy for cooking. Very cost effective setup. Very easy to operate.  Try to take as many roofs as possible. In malls, the food court is usually located on top floor. Easier integration with rooftop solar thermal and biogas. 

Combine this with a biogas unit. All restaurant/hotel waste will be recycled which will provide thermal energy for night. Digestate can be used as well. 

You can install these in houses as well. End of houses will be fine. 

Thermal to thermal is the best utilization of solar energy. You can realize upwards of 60 percent efficiency i.e. 3 times that of solar PV at 1/3rd the cost (if you are prudent with buying) of solar PV. So 9 times more beneficial. If you want rough calculation, i can show it to you. The reflector brings down the weighted cost per sqm significantly. 

The challenge to solar thermal was large collector areas if concentration was not used. If concentrators were used, it was tracking. Concentrators were needlessly expensive with all the tracking. With these, the collector area can be increased significantly wihout loss of energy which allows the use of plain reflectors. Plain reflectors are very cheap. You can put up anything for plain reflectors. This thing is also good for handling diffuse radiation which is typically not captured effectively by concentrators. This increases the efficiency further. 

Plus all the thermal energy absorbed reduces your cooling requirements. Cuts down on air conditioning bills. Two birds killed with one stone. 

I haven't explored electricity generation with this. You can easily get above 250 C in my design. So steam can easily be done. 

Don't ask me to prove my usefulness. I have proved it multiple times over. This single insight can have a very significant impact on climate change. 

Many jobs can be done.  These are ground level solutions which can be easily implemented and have a significant impact on the entire ecosystem. No fancy stuff. Very easy to do. 

Very effective for climate change. Giving for free. 

One-third of the global population (about 2.6 billion people) relied on traditional fuels such as wood, charcoal and agricultural residues for household cooking in 2019. Imagine if they started using solar thermal and biogas. So much impact on climate change. Then remove all LPGs and other fossil sources. Also health benefits.

2.6 percent emissions (game number?) is from cooking food. Maybe but check. 

I will run a program where I give people solar cookers for free and get things like sugarcane bagasse for pyrolysis. Win win for everyone. 

This is the future.