“Within the next decade, we’ll have several supercritical wells on land, and I think that would get the attention of the industry to develop more wells on land and then perhaps move out to the ocean, where most of the heat flow is occurring along these mid-ocean ridges,” Elders said. Vast geothermal resources are out there, and once the business case is made, there’s no telling where industry will go with supercritical geothermal technology. But Elders is confident about where it will start. “The proof of concept will come in Iceland.”