Supercritical geothermal systems are very high-temperature geothermal systems that are located at depths near or below the brittle–ductile transition zone in the crust where the reservoir fluid is assumed to be in the supercritical state, that is for pure water, temperature and pressure are, respectively, in excess of 374 °C and 221 bar.

Halcyon is actively engaged in projects around the world, including South America where we hope to establish supercritical geothermal systems that will produce incredible amounts of green energy.