The challenges of climate change necessitate a shift from fossil fuels to renewable energy sources, with a particular need for sustainable base load-capable energies. Geothermal energy emerges as a promising solution, offering ecological and economic benefits with a growing installed capacity globally. In 2021, geothermal electricity capacity reached 16 GWe, and direct use of geothermal heat achieved 108 GWt. In countries like Chile and Germany, hydrothermal systems can provide significant energy outputs and moreover contribute to supplying critical raw materials essential for the energy transition, such as lithium. Geothermal energy production harnesses the Earth’s internal heat via deep wells, producing naturally occurring hot fluids. These fluids, enriched with elements like lithium, present opportunities for multi-use approaches producing both energy and raw materials. This dual approach can enhance the sustainability of the mining sector, the economic feasibility of geothermal projects, and the diversification of global value chains. This study highlights the potential of hydrothermal geothermal systems in Chile and Germany to address global energy challenges. By leveraging geothermal energy for both power generation and raw material extraction, these systems can provide a resilient, sustainable solution to the energy and material demands of the future.