3 ms·

I have to say that this is one of the dumbest ideas I've heard in a long time. Like "you have to be dropped on your head as a baby" dumb. Let's say the cable i

• _Microft 4y ago
  According to the article, it is 2300 miles long, that is approximately 3700km. Losses for HVDC power lines are in the low single digit percent per 1000km. China already built a 12GW connection over 3000km for example. That was not a submarine cable, though. https://en.m.wikipedia.org/wiki/High-voltage_direct_current https://en.m.wikipedia.org/wiki/High-voltage_direct_current
• nl 4y ago
  > How much power dissipation is there going to be over this distance? Not much, and it should be efficient enough to make economic sense. Note that the article says it is 3700km, not 5000 miles. Ultra high voltage lines lose about 3.5% per 1000km[1] (although this is improving). In China they have multiple 3000km+ lines, eg[2]. Some estimates indicate the US could reduce generation emissions by at least 80% with better long distance transmission capacity[3]. [1] https://en.wikipedia.org/wiki/High-voltage_direct_current https://en.wikipedia.org/wiki/High-voltage_direct_current [2] https://spectrum.ieee.org/chinas-state-grid-corp-crushes-power-transmission-records https://spectrum.ieee.org/chinas-state-grid-corp-crushes-pow... [3] https://www.nature.com/articles/nclimate2921 https://www.nature.com/articles/nclimate2921