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Originally Posted by bruce
$100-a-barrel oil also made strip-mining northern Alberta for oil viable.
It makes the developing nothern Alaska oil fields financially and politically viable.
It makes developing previously untapped off-shore oil fields viable.
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When it comes to energy, more than cost needs to be taken into account. Basically, it takes energy to get energy, and if you are using a resource for energy, then EROEI (energy returned on energy invested) must be taken into account. If it takes more energy to extract the resource than the energy you get out, then it's not viable as an energy resource no matter what the cost.
The EROEI of light sweet crude (Texas or Saudi Arabia), is many times that of tar sands or deep water oil.
Once a source gets to an EROEI of < 1, forget it.