
738 Solar Bicycles, Mercedes, Handcuffs—PlusEnergy Buildings
Figure 44.39 Chesa Futura in St. Moritz was built by Lord Norman Foster
in 2002. Thanks to its envelope with 50 cm of insulation, the big energy losses
are reduced by 70 to 95%.
44.5 PEB Cover 75% of World’s Energy Demand
a
44.5.1 From Solar Collectors to PlusEnergy Buildings
44.5.1.1 Conclusion of Tour de Sol, WSC as well as Swiss and
European Solar Prize
Races such as the Tour de Sol, World Solar Challenge and Sunrayce
as well as other solarcar races have demonstrated that people can
be moved in individual cars with only 2 to 10% of the usual energy
need. Today, an average car with fossil