SummaryGEA Geothermal Expo is happening from 14 October 2018, Sunday to 17 October 2018, Wednesday at Peppermill Resort Spa Casino in Reno, NV. The organizer of the event is Geothermal Resources Council. GEA Geothermal Expo is open to trade visitors. The estimated number of attendance is 1,200. The estimated number of exhibitors is 80. The frequency of GEA Geothermal Expo is annual.