1st law:
The increase in the internal energy of a thermodynamic system is equal to the amount of heat energy added to the system
minus the work done by the system on the surroundings.
http://en.wikipedia.org/wiki/First_law_of_thermodynamicsThe 1st law applies to H2 fuelcells like this
This is the "work": A unit of energy (electricity) is used to break the nuclear bonds of H20, resulting in H2 & O.
minus the work done by the system. Take the H2, use it in the fuelcell car. Rsults: fuelcell car travels 1000 miles.
Now if we take the above mentioned work out of the equation, and just use the electricity in an electric car, said car will travel (i'm guessing) 1400 miles.
Lets take this issue a step further.
The amount of emissions using a large coal fired electrical generating plant to power an electrcic car 1000 miles, will be less than the emissions by a high milage small gas or diesel car 2 1000miles.
Why you ask?
Because of the economies of scale. utilities build electrical generating plants in the 1000 MW scale because it is the most efficient way to generate 1000 MW of electricity. Utilities dont use car engines (120hp 4 cylinder) to generate electricity because its very inefficient.
SO like I said when you or some one else develops a work around to the 1 st law of thermodynamics, I will kiss your ass, or their ass. Untill then you can kiss my ass.
David Talbot
writesNobody has made this point more clearly than Joseph Romm does in Hell and High Water. Romm is an MIT-trained physicist who managed energy-efficiency programs in the U.S. Department of Energy during President Clinton's administration and now runs a consultancy called the Center for Energy and Climate Solutions. His book provides an accurate summary of what is known about global warming and climate change, a sensible agenda for technology and policy, and a primer on how political disinformation has undermined climate science. In his view, the rhetoric of "technology breakthroughs"--including the emphasis by President Bush and some in the auto industry on a future hydrogen economy--provides little more than official cover for near-term inaction.
a 2004 National Academy of Sciences study predicted that fossil fuels would be the main source of hydrogen for "several decades." The other way is to split water molecules using electricity.
According to Romm's analysis, the math for hydrogen cars simply doesn't work out. .
about Joseph RommAbout the Author
Joseph Romm, Ph.D. is executive director and founder of the Center for Energy and Climate Solutions and a senior fellow at the Center
for American Progress, the premier progressive think tank. During the Clinton administration, Romm was Assistant Secretary at the Department of Energy, where he headed the Office of Energy Efficiency and Renewable Energy. He is the author of "The Hype about Hydrogen:
Fact and Fiction in the Race to Save the Climate" and stars in the documentary film "Who Killed the Electric Car." Dr. Romm holds a Ph.D. in physics from MIT.
From
WikiHydrogen does not come as a pre-existing source of energy like fossil fuels, but rather as a carrier, much like a battery. It can be made from both renewable and non-renewable energy sources. A potential advantage of hydrogen is that it could be produced and consumed continuously, using solar, water, wind and nuclear power for electrolysis. Currently, however, hydrogen vehicles utilizing hydrogen produced using hydrocarbons, produce more pollution than vehicles consuming gasoline, diesel, or methane in a modern internal combustion engine, and far more than plug-in hybrid electric vehicles.<1> This is because, although hydrogen fuel cells generate less CO2 than conventional internal combustion engines, production of the hydrogen creates additional emissions.<4> While methods of hydrogen production that do not use fossil fuel would be more sustainable,<5> currently such production is not economically feasible, and diversion of renewable energy (which represents only 2% of energy generated) to the production of hydrogen for transportation applications is inadvisable.
Chemically pure hydrogen is derived from a feed stock. The energy to drive this conversion can be produced from fossil fuels, or renewable energy sources etc. Thus, hydrogen is not a harvestable energy source comparable to fossil fuels, solar energy, and wind energy. The conversions to produce hydrogen will have inherent losses of energy that make hydrogen less advantageous as an energy carrier. Additionally, there are economic and energy penalties associated with packaging, distribution, storage and transfer of hydrogen. Current technologies use between 165% to 212% of the higher heating value to produce the hydrogen.