Monday, July 7, 2008
Watched a fun presentation on the kinds of technology we might find in a future city, from folding cars to desalination plant. Part of the infrastructure was algae producing hydrogen which was sent down pipelines to supply transport vehicles, cooling cables on the way. I have the feeling, and I may well be wrong, that we assuming hydrogen will be part of the future mix and are looking for solutions.
Supposing the best use of algae was to create hydrogen, would it not be more energy efficient to convert directly to electricity and put the electricity on the grid than creating an additional infrastructure for hydrogen, not to mention more complex engines? I would be very interested to see the capital costs and running costs of hydrogen vs. electric cars. Given that hydrogen cars are electric cars with the addition of a fuel cell and hydrogen storage, it must be considerably more?