I wonder if there are constructions that also utilize the absorbed heat, i.e. energy that isn't caught by the solar cells. You could at least heat up the househ

I wonder if there are constructions that also utilize the absorbed heat, i.e. energy that isn't caught by the solar cells. You could at least heat up the household water with that energy, or possibly use it to generate additional electricity on a parallel track or in combination with the solar cells.