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Don’t forget the beef subsidies, too!
Per a 2015 Berkeley study, witjouy the beef and dairy subsidies, a Big Mac would cost $13 and a pound of beef would cost $30. Obviously both would be more now since inflation has raised prices by about 1/3 across the board and food prices have definitely grown faster than the average.
Europe and the US already have UHV transmission lines. Grid interconnects and long-distance transmission have voltage between 500kV-1,000kV
China is still developing its national grid.