Business Green: The installed capacity of photovoltaic (PV) solar technologies more than doubled during 2008, despite the onset of global recession in the second half of the year. That is the conclusion of a major new report from US solar industry consultancy Solarbuzz, which also confirmed that increased supplies of polysilicon combined with the impact of the recession has led to a significant fall in the price of solar cells during the first few months of this year. The report found that the …