GreenFire Energy's CO₂E^TM

Unlike conventional water-based geothermal energy, CO₂E^TM uses carbon dioxide as the geothermally heated fluid. At GreenFire's initial project site near the St. Johns Dome in Arizona and New Mexico, this CO₂ exists naturally near a geothermal resource. GreenFire will produce this CO₂ through wells, similarly to how super-heated water is produced in a conventional design. The CO₂ will then be cycled through a heat exchanger in a "binary geothermal system" – the heat exchanger will create steam for the turbines, while the CO₂ will be recompressed and reinjected into the geologic formation in a closed-loop system without atmospheric CO₂ emissions. CO₂E^TM has a number of advantages over water-based systems, and is expected to produce the lowest-cost baseload energy of any commercially scalable renewable energy source.

The Future of CO₂E^TM

At first, GreenFire will use naturally occurring CO2 to produce clean energy without harmful greenhouse gas emissions. Eventually, GreenFire's goal is to use CO₂ from coal-fired power plants. We believe the low cost of our baseload electricity will both improve the economics and facilitate the implementation of carbon capture, and we know we have a geologic formation that can sequester CO₂ – after all, it is currently holding both CO₂ and Helium. Because a significant fraction of CO₂ used in our process will be sequestered in the geologic formation, we can actually reduce greenhouse gases while simultaneously generating electrical power. Thus, we envision CO₂E^TM to be the only renewable and scalable energy source that also sequesters carbon. Magic? Not at all - it's just good science.

Basic Overview of CO₂E^TM