the afternoon of 20th july, Barbara drove harry and me to her parents who live away from salzburg town, in pondorf, schweigern. Her father, Franz Herzog, is a solar & biomass installer. His company promotes use of solar & biomass energy, http://www.solarier.net/main.php?menuid=ref:pellets
Maria, her mum was happy to see me again just after a few months of meeting in tanzania. We sat down to a nice meal and later a tour of the house.
Below, franz is doing his best to answer my questions regarding solar energy.