Business Green: The government has been warned by MPs that a rush to meet 2020 renewables targets may mean over expansion of existing technologies and not enough research into new ones. As part of an EU target to increase renewables by 20 per cent by 2020, the UK was set a 15 per cent renewable energy target. But to encourage a long term approach the cross-party EU committee wants the government to adopt 2030 targets soon. “We believe that the EU’s 20 per cent by 2020 target, and the …