plus there are other significant changes that can change in that time. HVDC power transmission lines lose something like 3% of their power over 600 miles, wher

plus there are other significant changes that can change in that time. HVDC power transmission lines lose something like 3% of their power over 600 miles, where AC ones lose closer to 7%. And use much less precious metals, since they require 2 lines instead of 3.