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Aloisius
4mo ago
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You need them for solar inverters, but you also need them for the turbines like those used to generate power with geothermal/wind/hydro/nuclear/etc.
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pfdietz
4mo ago
Erbium perhaps for some power semiconductors, but in very small amounts.
What's the use in turbines? Most generators associated with turbines don't use permanent magnets.
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