By Stephen Proctor, The Cool Down (TCD).  Excerpt: Two innovative companies, Solarwatt and Stiebel Eltron U.K., have collaborated on a first-of-its-kind home in the United Kingdom. According to  Solarwatt , the companies unveiled their fully integrated solar energy and  heat pump  system at a home in North Wales....  Full article at https://www.thecooldown.com/green-home/solarwatt-stiebel-eltron-uk-home-energy/ .