Fuel Cells: A Green Solution?
Hydrogen fuel cells are portrayed as the green alternative to internal-combustion engines, which emit greenhouse gases that cause global warming. We are told the only emissions created by driving a hydrogen fuelcell-powered vehicle will be water.
But where does the hydrogen come from? What polluting emissions will be created by generating it? To be pollution-free, the hydrogen must be derived from renewable energy, such as solar or wind. Unfortunately, hydrogen from these sources is not yet available at a commercial scale. It is currently manufactured by “stripping” it out of fossil fuels, such as natural gas, methanol or gasoline, or by passing a heavy electric current through water. These fossil fuel-based sources of hydrogen differ widely in the emissions they generate, but they are now being proposed as the power source for fuel cell vehicles, without public discussion of the environmental consequences.
This document summarizes a 50-page technical report on the specifics of Life-Cycle Value Assessment, including findings and data related to current hydrogen production systems.
Climate-Friendly Hydrogen Fuel: A Comparison of the Life-cycle Greenhouse Gas Emissions for Selected Fuel Cell Vehicle Hydrogen Production Systems
This report is a 50-page technical document on the specifics of Life-Cycle Value Assessment, complete with findings and data related to current hydrogen production systems.