IECM 12.0 beta User Manual > Modules Included with the IECM > Integrated Gasification Combined Cycle (IGCC) Plant > GET RESULTS > Overall Plant >

Overall Plant Cost

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The Overall Plant Cost result screen displays a single table with columns which total the annual fixed, variable, operations, maintenance and capital costs associated with the power plant as a whole. These columns correspond with the rows of a standard total cost result table. The costs summarized on this screen are expressed on an annual average basis and are provided in either constant or current dollars for a specified year, as shown in the Status Bar.

Each row corresponds with a technology:

•Air Separation Unit: This is the capital cost for the Air Separation process area of the plant.

•Gasifier Area: This is the capital cost for the equipment in the gasifier process area of the plant.

•Particulate Control: This is the capital cost for the equipment that performs particulate capture in the plant.

•Sulfur Control: This is the capital cost for the equipment that performs sulfur capture in the plant.

•CO2 Capture, Transport & Storage: This is the capital cost for the equipment that performs CO2 capture, transport and storage in the plant.

•Power Block: This is the capital cost for the power block process area of the plant. (This may be negative to reflect a credit - see note below.)

•Post-Combustion NOx Control: This is the capital cost for the equipment that captures post-combustion NOx in the plant.

•Subtotal: This is the cost of the conventional and advanced abatement technology modules alone. This is the total abatement cost. The subtotal is highlighted in yellow.

•Cooling Tower: This is the cost of the cooling tower modules.

•Land: This is the total cost of land required for the plant.

•Emission Taxes: This is the sum of the user assessed taxes on the plant emissions of SO2, NOx and CO2.

•Total: This is the total cost of the entire power plant. This result is highlighted in yellow.

Note:

The internal electricity cost for the power block may be negative to reflect a credit for electricity supplied to other components, as noted on the Power Block O&M Cost screen. This is true for both IGCC and NGCC plants. However, NGCC plants also include the cost of fuel in the variable O&M cost of the power block, and this is typically larger than the credit. IGCC plants, on the other hand, also have a gasifier, which is where the fuel costs are assigned, leaving the internal electricity cost as the only variable cost component for the power block in an IGCC plant. If you change the cost table units to M$/yr, you should see that the value on the this screen matches the internal electricity cost on the Power Block O&M Cost screen.