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CCS applied to a modern conventional power plant could reduce CO2 emissions to the atmosphere by approximately 80-90% compared to a plant without CCS. Capturing and compressing CO2 requires a great deal of energy and would increase the fuel needs of a plant with CCS by 10-40%. These and other system costs are estimated to increase the cost of energy from a power plant with CCS by 30-60% depending on the specific circumstances. Storage of the CO2 is envisaged either in deep geological formations, deep oceans, or in the form of mineral carbonates. Geological formations are currently considered the most promising, and these are estimated to have a storage capacity of at least 2000 Gt CO2. IPCC estimates that the economic potential of CCS could be between 10% and 55% of the total carbon mitigation effort until year 2100. Capturing and compressing CO2 requires much energy, significantly raising the costs of operation, apart from the added investment costs. It would increase the energy needs of a plant with CCS by about 10-40%. This, the costs of storage, and other system costs are estimated to increase the costs of energy from a power plant with CCS by 30-60%, depending on the specific circumstances. The costs of CCS are dominated by costs of capture. The storage is relatively cheap, geological storage in saline formations or depleted oil or gas fields typically cost $0.5-8 per ton of CO2 injected, plus an additional $0.1-0.3 for monitoring costs. However, when storage is combined with Enhanced oil recovery to extract extra oil from an oil field, the storage could yield net benefits of $10-16 per ton of CO2 injected (based on 2003 oil prices). Article Source: http://www.articlewheel.com
About the Publisher: This report is published by Energy Business Reports, an energy industry think tank and leading source for energy industry information and research products. Visit HERE to read more about this topic, 'Future of Carbon Sequestration: Key Drivers and Resistors, Costs and Technologies'.
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