That’s the conclusion of a government-commissioned report by consulting engineer Arup.
In October 2010 the Department of Energy and Climate Change (DECC) appointed Arup to analyse the data available for the UK and put an estimate on the maximum feasible deployment potential and generation costs of renewable electricity technologies up to 2030.
Arup found huge potential to expand the use of renewable energy technology across the country. However, there are barriers to greater use and it is up to government, industry and the public to decide how to overcome these.
Simon Power, technical director for the study at Arup, said: "Our research indicates that by 2020 renewable sources could provide 35% of the UK's energy generating capacity. Indeed, in many cases the generation potential of these technologies is greater than we previously expected.
"We have taken into consideration costs and barriers to deployment - from planning policy, to skill levels, and the availability of land, materials and equipment. However, this report is not designed to say one solution is better than another. Rather, it provides the Government and other stakeholders with a comprehensive evidence base to make economic and political decisions."
Arup's team looked at three levels of constraints that could affect potential annual energy generation from renewable sources - low, medium and high - modelling the effect of changes in output under different scenarios.
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