The renewable energy industry had quite a bit to celebrate this week as 2013 rang in a PTC extension that many had feared would never come to fruition. Though the extension to January 1, 2014 greatly benefits the wind industry, whose PTC was set to expire at the end of 2012, it also included a provision that could be huge for geothermal development. This provision states that projects under construction by January 1, 2014 would quality for the PTC, rather than the previous rule that required projects to be completed and operational.