can I ask you how you managed to connect the hot and cold part to the solar panel as the ones we use are not very much flexible since they are made for high temperatures and I couldn't find this answer from the video please help.
Banev left a comment on this sun tracker project that shows his cool Solar Hot Water Panel with Sun Tracker in operation. The panels follow the sun and heat water in a hot water tank. The computer monitoring is what makes it real interesting!