The Scottish Government has approved plans to build new power line pylons between Beauly and Denny substations in Scotland.
The 137-mile, 400kV power line will transmit 2.5GW of electricity through its 600 towers and the old 132kV line will be dismantled for the upgrade.
Scotland's Energy Minister Jim Mather said the country's electricity network needs reinforcement to allow its vast renewables potential to be harnessed, transmitted and exported.
"Currently we simply do not have the transmission capacity to carry the green energy that Scotland will generate over the coming years," Mather said.
The development, which will connect renewable power projects to the national grid, has been widely opposed on the grounds it could affect the beauty of the Scottish countryside.