While state officials and representatives from the energy industry met at a conference entitled Renewable Energy Solutions for Energy Prosperity in Texas to talk about the future of the Texas renewables, environmental groups filed a petition charging the state’s Public Utility Commission with dragging its feet on solar and geothermal energy.

At the heart of the petition is a question that’s come up before: whether the PUC is mandated by the state legislature to reach renewable energy “targets.” Environmental groups say it is, and by not complying the PUC is depriving Texas of cleaner power. Sierra Club lawyer Casey Roberts says in 2007 lawmakers amended the Renewable Portfolio Standard, so that private and public electric utilities would comply with the renewable goals.