National Grid wind farm pylon plan revealed
18 September 2013 Last updated at 15:02 BST
National Grid has revealed plans to use 25 miles (40km) of pylons to connect to controversial planned wind farms in Powys.
In addition to the pylons, eight miles (nearly 13km) of cables would be buried underground in the Meifod valley.
National Grid has also identified a preferred "secluded" site for a substation, on the Tir Gwynt wind farm.
The wind farm plans have sparked opposition from campaign groups, while a public inquiry is already under way.
Kevin Renddell of National Grid and farmer Rob Whittall, an opponent of the wind farms, give their views.