After several painfully slow years for geothermal developments, industry advocates will be glad to hear that 2012 turned out to be one of those most successful years in the past decade, according to Karl Gawell, executive director of the Geothermal Energy Association (GEA). With more than 100 megawatts (MW) of capacity brought online and plenty of burgeoning international markets, the geothermal industry has reason to celebrate – despite some nagging ongoing barriers to development.