Construction company Tarmac is collaborating with electrical engineering specialists Furrer+Frey to develop a retractable overhead electrical supply system suitable for freight terminals. The chosen site for trials is at Dunbar near Edinburgh, where Tarmac operates a busy cement plant. The terminal is adjacent to the busy East Coast Main Line, part of the UK’s electrified network. The trial is being supported by the UK government’s ‘First of a Kind’ innovation scheme.