Yeah, see, it wouldn't. Transmission lines are priced per kilometre. Superconducting transmission will almost certainly cost more than vanilla SCAW (steel core

Yeah, see, it wouldn't. Transmission lines are priced per kilometre. Superconducting transmission will almost certainly cost more than vanilla SCAW (steel cored aluminum wire), and you still have to pay for pylons, bridges, and/or directional drilling over land, or for laying if on the sea bed. Return on capital employed drives investment decisions. With the cost of PV, wind, and storage falling rapidly, and the efficiency of PV rising, the numbers are starting to fall out in favour of overbuilding supply near demand (in Siberia, to take your example), not building long transmission lines. No one lives in Siberia anyway, to a first approximation. No market, no investment.