Philip Wolfe, director general of the REA, said: "Given all the rhetoric on 'Green New Deal' and 'Green Tech' it is astonishing that so far the renewables industry has received no dedicated support even in areas that don't cost extra money."
He claimed that many of Britain's green energy companies are struggling to gain access to investment and competitive rate loans.
Last month, the government scrapped its solar energy grant scheme.
Campaigners claimed the decision to end because of unprecedented demand made a mockery of its commitment to building a green economy, reducing carbon emissions and tackling climate change.
Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.