The US Partnership for Renewable Energy Finance calculated that more than $24bn of wind, solar, geothermal, biomass and transmission projects slated to proceed in 2011 would be stymied without the TGP extension. The industry has been lobbying for an extension since January, but ramped up efforts substantially in recent weeks.. "We made an all-out blitz to emphasise how important it was that this programme continue," says Rhone Resch, chief executive of the Solar Energy Industries Association..