Table TS.3. Summary of CO2 capture costs for new power plants based on current technology. Because these costs do not include the costs (or credits) for CO2 transport and storage, this table should not be used to assess or compare total plant costs for different systems with capture. The full costs of CCS plants are reported in Section 8.

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Table TS.3. Summary of CO₂ capture costs for new power plants based on current technology.
Because these costs do not include the costs (or credits) for CO₂ transport and storage, this table should not be used to assess or compare total plant costs for different systems with capture. The full costs of CCS plants are reported in Section 8.
Performance and cost measures	New NGCC plant		New PC plant		New IGCC plant
	Range	Rep.	Range	Rep.	Range	Rep.
	Low - High	value	Low - High	value	Low - High	value
Abbreviations: Representative value is based on the average of the values in the different studies. COE=cost of electricity production; LHV=lower heating value. See Section 3.6.1 for calculation of energy requirement for capture plants. Notes: Ranges and representative values are based on data from Special Report Tables 3.7, 3.9 and 3.10. All PC and IGCC data are for bituminous coals only at costs of 1.0-1.5 US$ GJ^-1 (LHV); all PC plants are supercritical units. NGCC data based on natural gas prices of 2.8-4.4 US$ GJ^-1 (LHV basis). Cost are stated in constant US$2002. Power plant sizes range from approximately 400-800 MW without capture and 300-700 MW with capture. Capacity factors vary from 65-85% for coal plants and 50-95% for gas plants (average for each=80%). Fixed charge factors vary from 11-16%. All costs include CO₂ compression but not additional CO₂ transport and storage costs.
Emission rate without capture (kgCO₂/kWh)	0.344 - 0.379	0.367	0.736 - 0.811	0.762	0.682 - 0.846	0.773
Emission rate with capture (kgCO₂/kWh)	0.040 - 0.066	0.052	0.092 - 0.145	0.112	0.065 - 0.152	0.108
Percentage CO₂ reduction per kWh (%)	83 - 88	86	81 - 88	85	81 - 91	86
Plant efficiency with capture, LHV basis (% )	47 - 50	48	30 - 35	33	31 - 40	35
Capture energy requirement (% increase input/kWh)	11 – 22	16	24 - 40	31	14 - 25	19
Total capital requirement without capture (US$/kW)	515 - 724	568	1161 - 1486	1286	1169 - 1565	1326
Total capital requirement with capture (US$/kW)	909 - 1261	998	1894 - 2578	2096	1414 - 2270	1825
Percent increase in capital cost with capture (%)	64 - 100	76	44 - 74	63	19 - 66	37
COE without capture (US$/kWh)	0.031 - 0.050	0.037	0.043 - 0.052	0.046	0.041 - 0.061	0.047
COE with capture only (US$/kWh)	0.043 - 0.072	0.054	0.062 - 0.086	0.073	0.054 - 0.079	0.062
Increase in COE with capture (US$/kWh)	0.012 - 0.024	0.017	0.018 - 0.034	0.027	0.009 - 0.022	0.016
Percent increase in COE with capture (%)	37 - 69	46	42 - 66	57	20 - 55	33
Cost of net CO₂ captured (US$/tCO₂)	37 - 74	53	29 - 51	41	13 - 37	23
Capture cost confidence level (see Table 3.6)	moderate		moderate		moderate

Source: IPCC Carbon Dioxide Capture and Storage: Technical Summary (2005)
2. Sources of CO₂, p. 25