Energy firms face inquiry over £1.3bn green power cable

National Grid and Scottish Power project was two years late and has suffered outages

National Grid and Scottish Power face an investigation by the energy industry regulator after repeatedly bungling the startup of a 1.3bn subsea power cable which is supported by home energy billpayers.

The high-voltage power cable began transmitting renewable electricity from Scottish windfarms to homes and businesses in England and Wales in late 2017, about six months behind schedule.