Ian Woollard <[EMAIL PROTECTED]> wrote:
Surprisingly, plants are a very inefficient way to process sunlight- they are under 2% efficient.Point missed. To use plants to create energy, you have to burn them or their byproducts, releasing CO2.
I'd expect the high efficiency solar cells and electrolysis to be much more efficient.
But its not efficiency, it's cost of course. I don't have a clue which is cheaper. And plants are environmentally friendly, whereas solar cells are very nasty to make with lots of waste products.
Tony Fredericks wrote:Yes but plants don't introduce more CO2 into the atmosphere, they suck it out; we put it back. No net gain."Paul F. Dietz" <[EMAIL PROTECTED]> wroteBen Zarzycki wrote:The point of electrolysis is not that it is cheaper (although it may be if we had an abundance of clean energy such as solar cells). The point is that is creates a clean "hydrogen cycle" that is not dependent on plants. Water is split. Water is made. No intermediary steps. This is not the case for any other method.
Why is 'not using plants' a desideratum? What are we, some religious sect
that cannot tolerate the killing of our leafy brethren?
I believe his objection to using plants has to do with the introduction of more CO2 into the atmosphere, not whether or not plants should be killed.
Tony Fredericks "Mind that bus!"
Amateur Rocket Scientist "What Bus?"
E.R.P.S. Member SPLAT!! - Arnold Rimmer
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