National Grid’s plans for a vast new electricity converter station and sub-station covering the area of 22 football pitches near the Kent coast is aimed at boosting the south east’s supply of ‘clean green’ energy. So why are environmentalists up in arms? Here we lay out the proposals and arguments for and against. What is it? Sea Link is one of several projects forming part of The Great Grid Upgrade – the largest overhaul of the electricity grid in generations, aimed at boosting and distributing ‘homegrown’ power and helping the UK switch to clean energy. It has been designed to link the Kent …