August 6, 2012. The government will invest 100 million pounds with two specialist investment houses to encourage investment into improving Britain's energy efficiency. Specialist fund managers at Equitix and Sustainable Development Capital (SDCL) will use the money -which will be provided by UK Green Investment, part of the Department of Business, Innovation and Skills -to attract foreign cash needed to improve Britain's energy efficiency. The low carbon sector was growing at an annual rate of 4.4 percent and that it was worth 3.3 trillion pounds ($5.15 trillion) worldwide in 2011. Renewable energy could deliver between 30 and 45 percent of the UK's energy by 2030. Equitix is an infrastructure investment company that focuses on UK Government infrastructure projects. SDCL is an investment banking and advisory firm focusing on large scale sustainable development projects.