The CO2-Plume Geothermal (CPG) technology is a promising concept within the context of a future CCUS economy and enables combining carbon sequestration with power generation. Various regions worldwide display promising geological settings for future CPG projects. However, next to the geological characteristic, also the ambient temperature has a pivotal impact on the CPG performance and potential off-design performance of its components. This work investigates the annual net power output for three promising regions regarding potential future CPG systems: Switzerland, Saudi Arabia and Texas, United States. The results show that Switzerland displays the highest net power output for all months, followed by Texas. For both Texas and Saudi Arabia, the achievable net power is only marginal during the hottest summer months. However, also in Switzerland the CPG system displays a significantly lower net power output during the summer. Nevertheless, the significant power output potential of the CPG technology during colder periods is promising, considering the current and future installed capacities of PV in the electricity mix. Thus, CPG can especially provide high power outputs during periods with low or no PV power supply. In combination with advanced CPG systems for enhanced flexibility, CPG has the potential to provide reliable flexibility in combination with its general advantages of a true CCUS technology.
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The CO2-Plume Geothermal (CPG) technology is a promising concept within the context of a future CCUS economy and enables combining carbon sequestration with power generation. Various regions worldwide display promising geological settings for future CPG projects. However, next to the geological characteristic, also the ambient temperature has a pivotal impact on the CPG performance and potential off-design performance of its components. This work investigates the annual net power output for thre...
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