Ijen’s Blind Geothermal System vs. Zanskar’s AI-Discovered Resources: Two Models for Finding Hidden Heat The geothermal industry is entering a new phase in which the most valuable resources may no longer be the fields marked by obvious hot springs, geysers, fumaroles, or steaming ground. Increasingly, developers are targeting “blind” or hidden geothermal systems,reservoirs that lack clear surface expressions but can still contain the temperature, permeability, and fluid needed for commercial power generation. Two examples illustrate how different parts of the industry are approaching this challenge. In Indonesia, the Blawan-Ijen geothermal field in East Java was developed through geological interpretation, magnetotelluric imaging, conceptual modelling, and drilling. The project is now operating commercially, with its first phase delivering approximately 35 MW to the Java grid under a 30-year power purchase agreement. In the United States, Zanskar Geothermal & Minerals is using...
Engie’s Geothermal Ambitions in Réunion Island: A Turning Point for Energy Independence in Volcanic Territories By: Robert Buluma In a world increasingly defined by the urgency of energy transition, remote island territories stand at the frontline of both vulnerability and opportunity. The recent move by to secure a geothermal exploration permit in marks more than just another project milestone—it signals a potential transformation in how isolated regions harness their natural resources to break free from fossil fuel dependency. This development, centered in the Cafres-Palmistes highlands, is not merely about drilling wells or building a power plant. It is about unlocking the immense geothermal promise hidden beneath volcanic landscapes, navigating environmental sensitivities, and setting a precedent for sustainable energy in island economies worldwide. A Strategic Foothold in Volcanic Terrain Réunion Island, located east of Madagascar in the Indian Ocean, is a geological marvel...