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Chapter 8: Cost and economic potential 343 table 8.1 Summary of new plant performance and CO2 capture cost based on current technology. (units for H2 Plant) Performance and Cost measures New NGCC Plant New PC Plant New iGCC Plant New Hydrogen Plant Emission rate without capture (kg CO2 MWh-1) 344 - 40 - 83 - 47 - 11 - 379 367 66 52 88 86 50 48 22 16 724 568 811 762 682 145 112 65 - 846 773 78 - 174 - 28 - 96 - 68 - 22 137 17 86 60 8 kg CO2 GJ-1 (without capture) Emission rate with capture (kg CO2 MWh-1) 736 - 92 - 81 - 88 85 30 - 35 33 24 - 40 31 - 152 81 - 91 31 - 40 14 - 25 108 7 86 72 35 52 194 kg CO2 GJ-1 (with capture) Percent CO2 reduction per kWh (%) % reduction/unit of product Plant efficiency with capture, LHV basis (% ) Capture plant efficiency (% LHV) Capture energy requirement (% more input MWh-1) % more energy input per GJ product Total capital requirement without capture (US$ kW-1) 515 - 909 - 64 - 31 - 43 - 12 - 37 - 33 - 37 - 1161 - 1486 1286 1894 - 2578 2096 44 - 74 63 43 - 52 46 62 - 86 73 18 - 34 27 42 - 66 57 23 - 35 29 29 - 51 41 1169 - 1565 1326 1414 - 2270 1825 19 - 66 37 41 - 61 47 54 - 79 62 9 - 22 16 20 - 55 33 11 - 32 20 13 - 37 23 moderate [No unique normalization for multi-product plants] Capital requirement without capture Total capital requirement with capture (US$ kW-1) 1261 998 100 76 50 37 72 54 24 17 69 46 57 44 74 53 Capital requirement with capture Percent increase in capital cost with capture (%) -2 - 6.5 - 7.5 - 0.3 - 54 10.0 13.3 3.3 33 39 56 18 7.8 9.1 1.3 15 12 15 % increase in capital cost COE without capture (US$ MWh-1) H2 cost without capture (US$ GJ-1) COE with capture only (US$ MWh-1) H2 cost with capture (US$ GJ-1) Increase in COE with capture (US$ MWh-1) Increase in H2 cost (US$ GJ-1) Percent increase in COE with capture (%) 5 - 2 - 2 - % increase in H2 cost US$/tCO2 captured US$/tCO2 avoided Cost of CO2 captured (US$/tCO2) Cost of CO2 avoided (US$/tCO2) moderate to high Confidence Level (see Table 3.7) Capture cost confidence Level (see Table 3.7) moderate moderate low Range Rep. Range Rep. Range Rep. Range Rep. high value low high value low high value low high value COE = Cost of electricity Notes: [a] Ranges and representative Chapter 8 for total CCS costs. [b] All of 2.8-4.4 US$ GJ-1 (LHV basis). [d] Costs are in constant US$ (approx. year 2002 basis). [e] Power plant sizes range from approximately 400-800 MW without capture and 300-700 MW with capture. [f] Capacity factors vary from 65-85% for coal plants and 50-95% for gas plants (average for each=80%). [g] Hydrogen plant feedstocks are natural gas (4.7-5.3 US$ GJ-1) or coal (0.9-1.3 US$ GJ-1); some plants in dataset produce electricity in addition to hydrogen. [h] Fixed charge factors vary from 11-16% for power plants and 13-20% for hydrogen plants. [i] All costs include CO2 compression but not additional CO2 transport and storage costs. values are based on data from Tables 3.7, 3.9, 3.10 and 3.11. All costs in this table are for capture only and do not include the costs of CO2 transport and storage; see 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. [c] NGCC data based on natural gas pricesPDF Image | CARBON DIOXIDE CAPTURE AND STORAGE
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