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Re:A Room-Temperature Superconductor? New Developments by jojobas on Tuesday August 01, 2023 @07:59PM (#36965004)
>The efficiency of high voltage AC power lines is limited by capacitive coupling to ground.

As often in engineering, the sweet spot is where multiple factors have ~equal contributions, so even a 50% win in one of the factors can't give you that much benefit.

For high voltage AC power lines it's Ohmic losses, corona discharge losses, and inductive losses.

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