To put the demand for batteries into scale: Tesla is making a big deal out of it's BigF'nBattery that they installed in Australia for grid storage.
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https://www.greentechmedia.com/artic...try#gs.ZoGYEGw
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This is just 120 trucks worth of batteries. Our proven Lithium and Cobalt reserves are going to go fast. Grid storage should probably find another more abundant chemistry to save the high performance cells for transportation..