There is a growing interest in carbon capture and storage (CCS) as a means of reducing carbon dioxide (CO2) emissions. However, there are substantial uncertainties about the costs of CCS. Costs for pre-combustion capture with compression (i.e. excluding costs of transport and storage and any revenue from EOR associated with storage) are examined here for First-of-a-Kind (FOAK) plant and for more mature technologies (Nth-of-a-Kind plant (NOAK)). For FOAK plant using solid fuels the levelised cost of electricity on a 2008 basis is approximately 10/kWh higher with capture than for conventional plants (with a range of 8-12/kWh). Costs of abatement are found typically to be approximately $150/tCO2 avoided (with a range of $120-180/tCO2 avoided). For NOAK plants, the additional cost of electricity with capture is approximately 2-5/kWh, with costs of the range of $35-70/tCO2 avoided. Costs of abatement with carbon capture for other fuels and technologies are also estimated for NOAK plants. The costs of abatement are calculated with reference to conventional supercritical pulverized coal (SCPC) plant for both emissions and costs of electricity. Estimates for both FOAK and NOAK are mainly based on cost data from 2008, which was at the end of a period of sustained escalation in the costs of power generation plant and other large capital projects.
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