Hello,apologies for the pervious misspost
some info on hydrogen and fuel cells-If hydrogen is produced from any fossil fuel, there is a co2 byproduct (now waste). Through some research I have done I discovered that the well to wheel greenhouse gas emissions of fuel cell powered vehicles using natural gas as a feedstock fuel produces roughly 250 grams per mile of co2 equivalent, internal combustion engines produce 420 g/mCO2e.
Another way to produce hydrogen is via electrolysis which breaks water into hydrogen and byproduct oxygen. Electrolytic hydrogen from a hypothetical grid mix utilizing 100% natural gas combined cycle combustion plants is roughly380 g/mCO2e. not much advantage. Renewable energy if used to produce hydrogen yields a negligable amount roughly 10 - 20 g/mCO2e. However, to produce economic hydrogen, you need electricity feedstock costs under $0.05 kW/h, as well as certain electrolyzer cost targets, achievable by volume production.
The magic of hydrogen is that it is in everything, it can be produced from waste biomass, from photovoltaic energy, and from nuclear power plants (low atmospheric emissions and manageable wastes) via electrolysis or an other integrated method that I have not examined. Two other most promising methods for hydrogen production are photobiological and photocatalytic, each are very low emission techniques of the future.
Fossil fuels can and will help us reach a future solar hydrogen infrastructure. first there is a transition period during which fuel cells and hydrogen technologies can develop. In turn the fuel cell and hydrogen technologies can add diversity and reliability to the existing energy system. Combine this with information technology and you have an energy system that provides instant feedback.
Some solid oxide type fuel cells are fuel flexible, able to run utilizing either internally reformed natural gas, or pure hydrogen. PEM fuel cells, the ones Ballard makes require hydrogen for fuel.
What I like about the hydrogen fuel cell option is that in a distributed configuration, these technologies can afford maximum flexibility to an organization/cooperative to combine future fleet refueling options with stationary power for peak and emergency backup. Hydrogen and fuel cell technologies offer a tremendous opportunity to use our energy much more efficiently, some say that using a fuel cell in place of conventional power generation is at least 50% more efficient. Ballard/Ebara just introduced a 1 kW combined heat and power module that at optimum (rarely achieved), runs at 94% efficiency. Fuel cell vehicles offer a 250% efficiency gain over traditional ICE engines.
I agree with the comment that governments must be more proactive. To me kyoto is about energy efficiency and creating new market rules that allow a shift from an extractive model to a regenerative model. These emerging technologies offer policy makers a golden opportunity to enable the triple interface between technology, ecology, and the economy and resolve some of the tension between environmental values and economic values.
As for the zephyr, you will probably be able to drive it for many more years, or park it and hopefully it will soon become an antique relic of great value to future fossil collectors :-).
[quote="Charlotte"]I've noticed a fair bit of news recently about the Bush administration's request for over a billion dollars to be spent on hydrogen fuel cell research over the next few years. I've also heard that one of the methods of producing the hydrogen needed for the fuel cells that will be investigated involves extracting it from coal/fossil fuels. Correct me if I'm wrong, but does this not mean that greenhouse gases will still be produced, only in a slightly different way?
And Jay, this might interest you - according to an article I just read at http://www.eetuk.com/tech/news/OEG20030207S0042
"Ballard Power Systems Inc. (Vancouver, British Columbia), which pioneered much of the fuel cell development now being employed by auto makers, is working with Ford, Daim