Early this year, the U.S. geothermal industry caught a rare win with the passage of a PTC provision that allows projects to qualify for the tax credit as long as they are "under construction" by the end of the year. Many had been hopeful that the provision would help kickstart geothermal development in the U.S. Today, however the industry is still waiting for a clear definition of what "under construction" means, which is making it difficult for investors to feel confident enough to pull the trigger on new projects.