More research on fractured reservoirs just published in the Journal of the Geological Society, London. The latest paper is from Loraine Pastoriza’s PhD work to characterise fracture attributes in a geothermal reservoir at Southern Negros in the Philippines. Situated on an active plate margin, the high heat flow in the Philippines is a viable geothermal energy source that is already producing electrical energy at several plants throughout the country.
Of course, a potential downside in areas of active tectonism is the increased seismic and volcanic hazard. We are currently instrumenting geothermal plants at a number of locations with our low-cost GNSS units to provide 24/7 ground motion monitoring.