Hi, don't know if you are familiar with him but John Canivan along with I believe Richard Heiliger developed a "Modified Trickle Down" (MTD) solar collector panel system that is more modular and scalable. There are a few YouTube videos available that he made as well. Mad hippy scientist type, I found him entertaining and his ideas are interesting.
https://builditsolar.com/Experimental/MTD/MTD.htm
