The Borkum Riffgrund 2 off-shore wind farm is 54km from the German coast and uses about 200km of cables to supple power, using 5,800 tonnes of copper that will ultimately be abandoned on the ocean floor once the wind farm reaches its end-life. It doesn't seem to me to be a reasonable use of resources, even if it makes sense, economically, at this point in our economy.
https://hell.twtr.plus/media/c47570072a3add25a2047aa354ed247db09758933bf3a54c204f54632d7ec534.file