
758 Solar Bicycles, Mercedes, Handcuffs—PlusEnergy Buildings
to even optimise it by massively decreasing emissions in the cities
worldwide. What is already possible in Europe today, might also be
possible on other continents.
The Stanford professors confirm that there are enough
renewable energies (PV, solar-thermal, wind, hydropower and wave
energy as well as biomass and geo-thermal energy) to supply
100% of the world’s energy needs. A new and pleasing, but not
surprising phenomenon are the very low future energy costs, that
are indicated with 4–5 ects.
a
However, the energy price is only
important to “energy illiterates”, because they have not understood ...