i n t e r n a t i o n a l journa l o f hydrogen energy 3 4 ( 2 0 0 9 ) 3 1 – 3 9
This study explores global energy demand, and hydrogen’s role, over the 21st century. It
considers four illustrative cases: a high (1000 EJ) and a low (300 EJ) energy future, and for
each of these conditions, a high (80%) and low (20%) fossil fuel energy share. We argue that
neither high energy future is probable, because of resource limitations, and rising energy,
environmental and money costs per unit of delivered energy as annual energy demand
rises far beyond present levels. The low energy/low fossil case is most likely, followed by
the low energy/high fossil case, although both require large cuts in energy use, and most
probably, lifestyle changes in high energy use countries. Hydrogen production would be
best favoured in the low fossil fuel options, with production both greater, and implemented
earlier, in the higher energy case. It is thus least likely in the low energy/high fossil fuel
case.
Полный текст статьи в формате .pdf
