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Energy in the real world
Solar and Wind are not renewable. The energy from solar and from wind is available but not renewable. An oak tree is renewable. A horse is renewable. They reproduce themselves. But, and a very important but, the human made equipment used to capture solar energy or wind energy is not renewable. ...
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DrumBeat: January 2, 2009
The Oil Drum — ... shop owners to think that they were largely insulated from a slowing economy. But the economy has continued to spiral downward, taking bicycle sales and much else with it. The question now is whether all the bicyclists who appeared last summer will be back next summer. “This is not like the rest of the recessions we’ve been through,” said Jay Graves, who owns six Bike Gallery stores in Portland, Ore., the first of which his father started in 1974. Energy in the real world Solar and Wind are not renewable. The energy from ...

Energy in the real world
Peak Oil News — ... energy choices. There is an important accounting system connected to energy decisions. Any system must give more energy than it takes to create/generate. This accounting system is Energy Invested on Energy Returned (EroEI). When it costs more to pull oil from the ground than we get back, then it is over for that well. On any technology, this has to be a main consideration. Many have heard that it takes as much energy to make ethanol as it provides. This makes it a dead end street. Energy Bulletin

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