The group, called 'Action for Renewables' (A4R), is a partnership of NGOs, trade unions, grassroots voices and industry.
Its Campaign Advisory Board consists of journalists, environmental activists and politicians from across the political spectrum.
Tony Juniper, who has been appointed Chairman, said in a statement: "The case for renewable energy is clear. The UK needs to play its part in tackling climate change, which we can achieve by harnessing our extensive natural energy resources.
"The new green industries which will achieve this will also generate tens of thousands of new jobs in some of the most deprived areas of the country."
The group has been set up to counteract "myths and hearsay" about renewables with information, and "is about setting the record straight and encouraging people to stand up and support properly-sited renewable energy developments around the country".
"The silent majority in support of renewables needs to make its voice heard (now more than ever. Action for Renewables intends to give it the tools to achieve just that."
The group believes that the 'silent majority' includes 85% of the population who 'support the use of renewable energy', as they responded to a 2009 Department for Energy Alan Whitehead MP; Bill Oddie; Charles Kennedy MP; Frances O'Grady (TUC Deputy General Secretary); John Sauven (Greenpeace CEO); Jonathon Porritt (former Director of the Sustainable Development Commission); Maria McCaffery (Renewable UK CEO); Peter Ainsworth (Chair of the Conservative Environmental Network); Polly Toynbee (Guardian journalist); Stan Blackley (Friends of the Earth Scotland CEO).
Tony Jupiter has recorded a video about the importance of renewable energy to support the relaunch.
