Tuesday, December 12, 2006

Why a Hydrogen Economy Doesn't Make Sense

Another study, reported in PhysOrg.com reaffirms my belief that the hydrogen economy is not energy efficient.

Hydrogen_vs_normal_power_generation_char

In a recent study, fuel cell expert Ulf Bossel explains that a hydrogen economy is a wasteful economy. The large amount of energy required to isolate hydrogen from natural compounds (water, natural gas, biomass), package the light gas by compression or liquefaction, transfer the energy carrier to the user, plus the energy lost when it is converted to useful electricity with fuel cells, leaves around 25% for practical use — an unacceptable value to run an economy in a sustainable future. Only niche applications like submarines and spacecraft might use hydrogen.

Even though many scientists, including Bossel, predict that the technology to establish a hydrogen economy is within reach, its implementation will never make economic sense, Bossel argues. ... more

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