The CO2-DISSOLVED project proposes a different approach to CO2 Capture and storage by focusing on a cheaper solution targeting small industrial emitters such as a bio–energy plant. The capture part of the CO2-DISSOLVED system, designed and patented by Pi-Innovation [1] basically consists in injecting the fumes into a special storage well where CO2 would dissolve into the water within the well prior to its injection in a deep saline aquifer. This capture strategy makes mandatory to use a water/brine movement. Therefore, the CO2-DISSOLVED concept consists in coupling this CO2-brine dissolution technology to a geothermal loop with a hot brine production well for heat extraction and an injection well for re-injecting the cooled brine saturated with CO2[2]. This loop provides storage and heat for the processes of the emitting plant. Due to the limited amount of CO2 that can be totally dissolved in the geothermal loop (about 10 to 15 ton/h, typically), the CO2-DISSOLVED concept is well suited for small-size emitters.For a sugar beet refinery [3], the BECCS approach provides excellent environmental results with negative emission due to the production of the bioethanol. However, on the economic standpoint, the performance of the project was poor due to the small volume of emission stored that could not offset the CAPEX.Applying the CO2-DISSOLVED approach to the same plant, i.e. coupling CO2 capture with a geothermal loop, enables significant reductions both on the emissions, between 25 to 60%, and on the energy, between 5 to 30% depending on the assumptions compare to the no CCS case (i.e. currently operating conditions). As compared to the BECCS reference case (Laude et al., 2011), the CO2-DISSOLVED approach can achieve an emission reduction between 15 to 50% while the corresponding non-renewable energy consumption can be reduced by 5 to 30%.The CO2 emission reduction is bigger than the non-renewable energy consumption reduction because the first stages of compression for the CO2-DISSOLVED approach require significant compression energy. On the economic standpoint, to reach an emission reduction from 15% to 50% higher, the BECCS approach costs between 100% and 350% more than the CO2-DISSOLVED approach.The cost per ton of CO2 saved (stored + not emitted by the combustion due the use of geothermal energy) for the range of performance of the project is between 39 and 72 €2015/ton saved over a 30 year lifetime (at 6% WACC). This is still higher than the current CO2 price level in Europe. However, the project reduced natural gas consumption via the geothermal loop which significantly improves the economics of the project.The probabilistic distribution of the Net Present Value of this project ranges between – 5 MM€2015 and +20 MM€2015 with an average value of 8 MM€2015. This wide range is linked to the wide range of CO2 prices considered in the model (5 to 50 €/ton of CO2). It shows that the project can be reasonably profitable at 6% discount rate (WACC) for the average scenario. Considering the best efficiency scenario, the project can be profitable in the current market conditions.It is also interesting to mention that from 12.5 €/ton onward, the CO2-DISSOLVED project is worth doing as compared to a pure geothermal project. This shows that this approach should be seriously envisaged for future geothermal projects provided local conditions make the project technically feasible (CO2 sources and storage integrity).Even if this study is at a conceptual stage, the CO2-DISSOLVED approach seems really worth investigating for small CO2 sources. It can contribute to reduce CO2 emission at significantly lower cost than CCS. It is noteworthy to mention that very specific conditions have to be fulfilled to be able to develop a CO2-DISSOLVED project, such as CO2 availability, and subsurface favorable context (geothermal and storage). However, a previous study [4] demonstrated the existence of an actual potential of application of this technology in France, Germany, and the U.S.A.