Geothermal Energy for PICTs

The following chapter explores the utilization of geothermal resources to provide energy, food, and water solutions in both urban and rural populations in the Pacific—several of which have vast geothermal reservoirs. A variety of geothermal-based technologies are presented providing alternative approaches to essential services such as electricity, food drying, refrigeration, and desalination. A set of design principles for geothermal solutions in the Pacific is also outlined and explored in further detail via a brief pre-feasibility case study for a geothermal village development on Tanna Island, Vanuatu. Finally, the opportunities of direct heat using underground geothermal implementations are discussed, indicating that these may well be an excellent means to provide low-cost solutions to rural areas, reduce investment risks associated with deeper geothermal well drills, and recycle waste heat to provide a wide range of services.