Overhead transmission lines, conductors and towers
BOTTLENECKNew transmission corridors require 10-15 years for permitting and T&D contractor backlogs are at record levels, constraining grid expansion.
Strung conductors on steel lattice, monopole or wooden structures carry bulk power over hundreds of miles, plus construction and right-of-way services. New corridors face 10-15 year permitting; existing line upgrades take 2-4 years. T&D contractor backlogs are at record levels, with Quanta Services alone holding $39.2bn.
What the evidence shows
Building new overhead transmission costs millions per km and has lengthy project timelines.
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Where it sits in the stack
Takes in: Power at sending-end substation; steel, aluminium, composite conductor materials
Sends on: Power at receiving-end substation
Related nodes
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