Federal environment minister Ian Campbell last week denied responsibility for the shelving of $550million investment for windfarms. He rejected claims by wind generator, Roaring 40s, that the failure to increase the Mandatory Renewable Energy Targets from two per cent was responsible for pulling back from the projects. "The companies have known the targets for a long time," he said. He was also incredulous of media claims that renewable energy missed out in the budget."We are investing hundreds and hundreds of millions of dollars into renewable energies, over and above the massive boost we gave to the renewable sector through the target program," he said.