David W. Rogers, Grand Island, New York: In the
July/August issue of Sierra Magazine, pages 28 - 39, you reviewed
the future power sources after fossil fuels are essentially
depleted. Nuclear, solar and wind all will have their place
as stationary suppliers of energy. These sources can be transferred
to batteries for portable use but serious limits of power, weight,
and recharging exist. Hydrogen power is discussed as a good
portable source. I want to believe this too, but as an engineer
with 40 years in machine design, I can see absolute limits to
its use. On page 32 you state "the trick is storing it."
You are 100% right. Forget hydrogen in a liquid state. Maintaining
its cold temperature except for short periods of time is impractical.
And in the high pressured gas state in tanks it doesn't store
enough energy to be practical for the millions of vehicles of
medium to large size.
Sorry to predict, but as we run low on oil, our future will
see a major contraction of transport and all its implication
on civilization as we know it.
Choose another topic
Up to Top