posted on Dec, 25 2007 @ 06:33 PM
This is somewhat dealing with Peak Oil. The idea is that oil itself is an energy carrier from dead organisms, so it is a tradeoff of life for eons
being used today. SO most Peak Oilers know that you need a replacement and some are good and some not so good.
The best are probably solar, hydroelectric, geothermal, and wind, but does the energy it costs to manufacture (lets take one for example) a wind
turbine less than the energy the wind turbine will produce over its lifetime?
For example, it (the turbine) is a product of many pieces and each one requires energy in various forms to produce. Energy to recycle steel,
aluminums, etc. More energy to work the raw materials into the final products. It requires energy to fuel the manpower required to manufacture all
this, and energy to even have a manufacturing plant to make them in. So with all this energy being spent to produce and end product, can one wind
turbine extract enough energy from the wind to pay for all the energy spent making the turbine itself?
I think the answer is probably no, but it would be quite complex to account for everything.