Thermeleon Panels Tiles
If you are among the people searching for better power consumption other than turning to the expensive solar panels, here is one that may interest you. The Thermeleon Panel Tiles change their colors based on temperature and turn while it is hot and reflect heat when it is cold to absorb the warmth of the sun. This translates into better temperature for rooms. No word on whether they would be made official but they seem like great conceptual alternatives to the usual solar panels that cost a lot.
(Source) Dvice








