The exact subsurface configuration will depend on geological conditions and the selected project design. In a closed-loop configuration, a working fluid circulates through an engineered underground system, absorbs heat from the surrounding high-temperature rock and transfers that thermal energy to the surface.

At the surface, the heat can be used in several ways:

Electricity
High-temperature geothermal heat drives an appropriate power-conversion cycle to generate continuous electricity.

Industrial heat
Instead of converting all thermal energy into electricity, heat can be supplied directly to industrial processes where high-temperature heat is required.

Hydrogen
Continuous geothermal electricity can power electrolysers, while geothermal heat can potentially be integrated into hydrogen-production processes.

The major advantage is that the same geothermal resource can serve multiple energy applications, depending on the requirements of the industrial customer.