At the heart of the energy transition is the dual challenge of ensuring access to efficient, reliable and sustainable energy for all, while reducing climate-changing emissions. CO2-based geothermal power generation has the potential to meet both the challenges by combining long term CO2 storage with geothermal energy extraction by using CO2 as a working fluid within a geothermal system.
We will summarize the concept of CO2-enhanced geothermal systems, including the thermodynamics, and discuss ongoing joint development between topside site analysis and turbine designs with existing mature oil and gas technology in the subsurface. Such collaborations will accelerate the time to successfully prove out the CO2 flood systems that will harness geothermal energy. CO2 power generation moves us beyond merely offsetting carbon emissions by providing carbon capture and storage systems that are net carbon negative.