Quote:
Originally Posted by NeilBlanchard
If these are so great - why don't we have them? They have to have energy and material inputs, and they can't be perpetual - so, how are they renewable?
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So do giant wind turbines which wear out. And 1,000s of square miles of grid scale solar farms with their inverters and batteries that wear out. All of which can only be constructed and serviced with immense liquid fuel inputs.
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Wind and sun are renewable. Turbines and solar farms are rebuildable. If we have the transportable and dense energy surplus to rebuild them.