FLATTAXRATE wrote:I'll tell you whats wrong with the liberal argument.
First they make bad assumptions which lead to bad policy.
They assume that alternate energy sources for transportation would manifest themselves if market forces would get out of the way of order as they see it. This is a bad and bold assumption considering the same people have no understanding of what energy is. If you ask a liberal how many kilowatt hours it takes to produce one gallon equivalent of hydrogen from water, they couldn't tell you but they would swear all you needed was a solar pannel to produce sufficient electricity. Let me state the facts. It takes 67 KW-HRs to produce a gallon of gas equivalent or one kilo of Hydrogen. Now most solar panels are rated for 700 watts during peak sunlight. You need 67 KW-HRs of energy. That would take (67,000/700) or 95 hours of sun to produce one gallon equivalent. Now remember if the sun shined that long you might want some AC going on in your house while you wait for enough energy to get you to the store. Considering that most air conditioners use 4 KW, you would need 4x95 hr or an additional 380 KW-hrs of electricity to cool your home while you wait on that hydrogen.
Now I'm not saying hydrogen fuel cells can't be a marketable solution, but it will require an additional 200 gigawatts of power generation to produce the gallon of gas equivalent that we currently use for transportation.
Well, I'll go out on a limb to say that it's not a marketable solution -- or even a physically possible one.
I think the important thing to remember is that if you can split H from H2O with less energy than you get from recombining the H and the O to make H2O; then what you've essentially done is create a perpetual energy machine. In other words, it is impossible according to the Laws of Thermodynamics to get more electricity out of the fuel cell than you put into the electrolysis of the water to split-off the hydrogen.
And that's ignoring the costs of capture, containment, transport, and distribution of the hydrogen.
I was a huge proponent of Fuel-Cell cars (I did a senior thesis on them back in undergrad), until I began to ask where we'd get the Hydrogen. The answer, unfortunately, is either from Methane (one of those evil fossil fuels) or nowhere.
People looking for alternative fuel sources usually fail to recognize that there are only four different types of energy available to Earthlings: 1) Tidal/Gravitational; 2) Geothermal; 3) Nuclear; and 4) Solar Energy.
(geothermal could actually be considered a type of nuclear power - but I digress)
Solar Energy includes: photovoltaics, wind, biofuels like ethanol, and fossil fuels.
Let's compare the solar energy of ethanol to the solar energy of, say, oil. How could it ever be possible to extract more of the solar energy from a single-year's plant growth, than one could get from millions of years of solar energy in plant and animal matter compressed, condensed, and concentrated for further millions of years? That's what we're essentially talking about: the amount of solar energy contained in one year of crop growth vs. the solar energy stored by millions of years of plant/animal growth.
I think that if our Senators and Congressmen could only grasp two things: 1) the Laws of Thermodynamics, and 2) the Law of Supply and Demand; our nation would be much better off. Unfortunately, most of the clowns we elect are lawyers to whom science and economics are as foreign as the U.S. Constitution.