Business Green: The UK is set to install twice as many small wind systems in 2008 than it did in 2007, according to the renewable energy trade association BWEA. According to the BWEA Small Wind Systems UK Market Report published last week, the market for small wind systems which generate less than 50kW of power will see 7,844 installed this year, compared with just 3,459 in 2007. The jump comes particularly in building-mounted small wind turbines as high energy prices and renewable incentives …