Hellow guys, Welcome to my website, and you are watching ☀️The Most Efficient Greenhouse on Earth | $100/year to heat in -40C with Sand Battery Thermal Mass. and this vIdeo is uploaded by Arkopia at 2024-03-29T15:44:51-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.