So here they are, the latest yearly average of miles of high-voltage transmission added to the grid since 2010:Transmission lines of under 345KV are largely used for local distribution networks. Some transmission experts say the industry should add about 5000 miles per year to keep up with needs. Before the sudden increase in demand on the system caused by the new AI load, the electric reliability organization and infrastructure engineers lamented the inadequacy of additions to the transmission grid, warning of the impact on grid reliability. Now a plethora of data center builders in a hurry want to add large power plants to the grid. So discount all those plans unless the builders also enlarge the transmission network or they build generating capacity unconnected to the grid.