Octopus Energy Group has added £3.4 billion worth of renewable energy projects to its portfolio with the acquisition of sister company Octopus Renewables. From June the large retailer will manage Octopus Renewables’ European portfolio of more than 300 green assets under new business arm Octopus Energy Generation. Chris Hulatt, co-founder of Octopus Group, the parent company of both businesses, said he hoped the move would unlock a “multitude of new investment opportunities”.