A next-generation geothermal technology that currently is still in its R&D phase is called Enhanced Geothermal Systems (EGS). This technology is gathering considerable attention and interest. While EGS technology is similar to traditional geothermal systems, it differs in that it is accomplished by fracturing rock by engineered techniques. In natural geothermal systems these fractures (or cracks) occur naturally and fill up with rainwater. In EGS, by way of a synthetic process, the water is pumped deep into the fractured rock to create steam. The result is an enhancement of these reservoirs such that they exhibit the same permeability characteristics as a natural hydrothermal zone. This can create opportunities in larger geographic areas for deploying geothermal technologies. Further, EGS technology may have the capability to significantly expand the regions where geothermal technologies could be employed. A report done by the Massachusetts Institute of Technology (MIT) concluded that using EGS could result in 100,000MW or more of potential energy generation in the US within twenty years.[1]
Research by Eva Patry
