[Reason077]

Feasable, and the concept has been proposed, but doesn't look likely to be built in the near future. There are still lower hanging (more profitable) fruit when it comes to building undersea HVDC cables.

https://en.wikipedia.org/wiki/Icelink

[jfengel]

Seems like one might hold off on underseas power cables until we figure out how to keep Russian and Chinese ships from having so many accidents.

[adgjlsfhk1]

power cables are a lot less vulnerable than fiber since cutting a cable carrying 500kv DC will do nasty things to whatever you're trying to cut with

[appointment]

Estlink 2 (650MW, 450 kV) has been cut twice in a year, with months-long outages in both cases.