the problem with geothermal, page-17

"Extraction methods for this tricky deposit seem to have been defined in theory, with a recovery rate slightly upwards of 90%"

Meant to read upwards of 80%, not 90%.

Speaking of recovery rates, depending on how much heat we are able to extract from our super-heated geofluid, we are going to need the mother of all binary-exchange surface areas, and a cooling system that dwarfs the plant itself.

If drilling is successful, the demo plant will be the first step in designing the largest surface-heat-exchanger in the world. A technical challenge, so it is good to have Exorka and their direct experience.