5 Conclusions

The second report as part of the Global CCS Institute's Strategic Analysis of the Global Status of CCS in 2009 (Foundation Report Two) gave a detailed analysis of the capture, transport and storage costs for power plants and a select range of industrial applications. This has been updated in 2011 to reflect updates to:

  • the regional localisation estimates;
  • capital cost estimates for power and select industrial CCS applications; and
  • the overall economic model.

The revised results of the economic assessment of CCS technologies are summarised in Table 5-1.

The primary purpose in providing these costs is to compare the relative costs of CCS for various technologies. The costs are prepared for specific bases and when comparing to other project costs, variations are to be expected based on changes in design specification, owner's preferences and appetite for risk and how the project is financed. Great care and study is required to make these comparisons.

Table 5-1 Summary results of the economic assessment of CCS technologies

    Power generation Industrial applications
PC supercritical & ultrasupercritical*1 Oxyfuel combustion standard & ITM*1 IGCC NGCC Blast furnace steel production Cement production Natural gas processing Fertiliser production
Levelised costof production Dimensions US$/MWh US$/MWh US$/MWh US$/MWh US$/tonne steel US$/tonne cement US$/GJ natural gas US$/tonne ammonia
Without CCS*2 73-76 73-76*3 91 88 570-800 66-88 4.97 375
With CCS FOAK*3 120-131 114-123 125 123 82 34 0.056 11
With CCS NOAK*4 117-129 112-121 123 121 74 31 0.056 11
% Increase over without CCS*5 61-76% 53-65% 37% 40% 10-14% 39-52% 1% 3%
Cost of CO2 avoided*6 ($/tonne CO2) FOAK 62-81 47-59 67 107 54 54 19 20
NOAK 57-78 44-57 63 103 49 49 19 20
Cost of CO2 captured ($/tonne CO2) FOAK 53-55 42-47 39 90 54 54 19 20
NOAK 52 41-45 38 87 49 49 19 20

Notes:

1 The ultra-supercritical and ITM technologies are currently under development and are not commercially available. These technologies represent options with the potential for increasing the process efficiency and reduce costs.

2 Without CCS cost of production for industrial process are typical market prices for the commodities.

3 Oxyfuel combustion systems are not typically configured to operate in an air fired mode. Therefore, oxyfuel combustion without CCS is not an option. The values here are the PC without CCS value to be used as a reference for calculating the cost of CO2 avoided.

4 For industrial processes, levelised cost of production presented as cost increment above current costs.

5 Expressed with respect to current commodity prices industry industrial processes.

Key findings based on the updated economic modelling are presented in the following sections.