LONDON (Reuters) – Octopus Renewables, the fund management specialist of Octopus Energy Group, has signed four deals to increase wind power generation across Europe, it said on Thursday. The deals will increase Octopus Renewables’ wind generation portfolio by up to 90%, adding up to 690 megawatts (MW) of capacity in Britain, France, Finland and Sweden over the next 10 years, the firm said. This is enough to power nearly half a million homes a year, it added. Octopus Renewables said it was investing in a joint venture to develop nine onshore wind farms in Britain with Wind 2 Limited, with combi…