IECM 12.0 beta User Manual > Modules Included with the IECM > Common Input and Result Screens > Other >

Plant Performance

The Plant Performance result screen displays performance results for the plant as a whole. Heat rates and power in and out of the power plant are given in a two table layout.

The content of the table on the right, Plant Energy Requirements, varies depending on the plant type. The table on the left, Performance Parameters, is fairly standard. The following performance parameters are shown in the left table:

•Net Electrical Output: This is the net plant capacity, which is the gross plant capacity minus the losses due to plant equipment and pollution equipment (energy penalties).

•Net Elec. Output (Annual Avg.): (Hybrid Cooling Only) A hybrid cooling system uses different cooling systems at different times of the year; thus, the net plant capacity varies. In this case, the value shown above is a worst-case value. This value gives the average net plant capacity across the entire year.

•Primary Fuel Power Input: (PC Only) This is the fuel energy input for the plant, given on an hourly basis (maximum capacity). This rate is also referred to as the Fuel Power Input.

•Auxiliary Fuel Power Input: (PC and NGCC Only) This is the fuel energy input for the auxiliary natural gas boiler if used with the Amine System. This is additional fuel energy used by the plant, given on an hourly basis. This rate is also referred to as the Auxiliary Fuel Power Input.

•Total Plant Power Input: This is the total of all the fuel energy used by the plant, given on an hourly basis (maximum capacity). This rate is also referred to as the Total Plant Power Input.

•Gross Plant Heat Rate: This is the heat rate of the gross cycle including the effects of the boiler efficiency. This rate is also referred to as the Gross Heat Rate.

•Net Plant Heat Rate: This is the net heat rate, which includes the effect of plant equipment and pollution control equipment.

•Annual Operating Hours: This is the number of hours per year that the plant is in operation. If a plant runs 24 hours per day, seven days per week, with no outages, the calculation is: 24 hours * 365 days, or 8,760 hours/year.

•Annual Power Generation: This is the net annual power production of the plant. The capacity factor and all energy credits or penalties are used in determining its value.

•Net Plant Efficiency: The net plant efficiency is displayed here on an HHV basis.