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Exactly. If you're on grid, unless and limiting yourself to times when there's a surplus, every KW of clean electricity you use is a KW of dirty, natural gas or coal peaker plant electricity someone else has to use. If you've got an off-grid solar set up, you're just bidding up the price of PV panels.

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As the volume of panels has gone up over the last decade, the he price of panels has also gone down as production scales and efficiencies improve.

You would need enough demand to create a global shortage. That doesn't seem likely and would cause a short-term spike, not a long term price increase.

I would agree except for the fact that PV panels use rare earth metals and other natural resources

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