the autumn of that year. In October 2014 Ecotricity and marine consultants DNV GL were moving from laboratory trials to sea trials. In 2013, Ecotricity's electricity supply became 100% renewable, rather than a mix. In October 2014, it was announced that Ecotricity had partnered with Skanska to build and finance new turbines, which added a further 100MW to its existing 70 MW capacity, The following month, the company decided not to attempt new planning applications in England because of the political climate, instead concentrating on Scotland. It went on to spin its small turbine manufacturer out into a subsidiary called Britwind, which, in collaboration with a local company, offered free electricity to crofters in return for installing a small turbine, keeping any excess power generated. In March 2015, Ecotricity announced it had refinanced its existing wind farms with the aim of using the extra capital to expand production to 100 megawatts by November 2016. In 2016 Ecotricity had approximately a 25% shareholding stake in competitor Good Energy, which has been sustained to 2020. In the 2017/2018 financial year the company had a turnover of £176 million, with a gross profit of £55 million and a loss on ordinary activities before tax of £4.9 million, but after charges and revaluation of investments had a "Total comprehensive (loss) for the year" of £9.5 million. It gave £416,000 to charity. By 2019, the company had 200,000 customers. A corporate restructure in 2020 created Green Britain Group Limited; the company's directors are Dale Vince and Kate Vince, and its subsidiaries include Ecotricity Limited and Forest Green Rovers Football Club Limited. In January 2021 the company agreed to buy 3 Megawatt-hours yearly from United Downs Deep Geothermal Power, the UK first geothermal plant. In summer 2021, Ecotricity made a bid to take over Good Energy, where it already owned 27% of the shares, which was rejected. In April 2022, Dale Vince stated an intention to sell the company. It was reported that the company planned to build a further 2,500MW of renewable energy generation, which would require investment of some £2billion. Tariffs Before August 2013, Ecotricity ran a mix of fuels. Ecotricity's proportion of renewable energy rose from 24.1% in 2007 to 51.1% in 2011 (compared with a national average of 7.9%), with plans for a further increase to 60% by 2012 In the past, a substantial proportion of the electricity (25.9% in 2007) sold