Business Green: The first study to put a financial value on the UK’s offshore renewable energy resource has concluded that the nascent sector could transform the country from a net energy importer to a net energy exporter by 2050. The report, which was commissioned by a coalition of government and industry organisations known as the Offshore Valuation Group, argues that the creation of a North Sea supergrid would allow the UK to export energy generated by offshore wind farms and marine energy systems …