Trade body Energy UK also estimates total energy cost of leaving bloc could reach £10bn by end of decade

Brexit has added up to £370m a year to the price of power supplies from Europe, according to industry representatives who calculate that the total energy costs of leaving the EU could amount to £10bn by the end of the decade.

Energy UK, the sector’s trade body, has called on Keir Starmer to negotiate a closer trading relationship with the bloc as part of the “reset” he is seeking with Brussels.