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RE: Electric Vehicles, EVs, Are the Cars of the Future... NOT!
I wanted to ask also, what about compressed air? The ultimate renewable, almost no mechanical moving parts and "cool" engine.
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The problem with compressed air is that energy storage is tiny. Pretty much like batteries in an electric vehicle.
So, you have a large, heavy tank, that doesn't take you very far (compared to gasoline)
However, they have been using it to power buses around cities.
And, just like battery charges, compressed air is not a renewable, it is a storage media. The energy is made somewhere else, somehow else.