Solar Energy
COMPLETE SOLAR HEATING AND DOMESTIC HOT WATER SOLUTION
The German Solar Industry Association is convinced that 100 percent of the heat requirement of new buildings could be covered by solar energy even today. In existing buildings, the proportion of solar heating could be increased to over 70 percent by solar-oriented rehabilitation of the heating system, including improved insulation. The German Solar Industry Association estimates that by the year 2030, the "100-percent solar heated house" will be the general standard



