IECM 12.0 beta User Manual > Modules Included with the IECM > Pulverized Coal (PC) Plant > GET RESULTS > NOx Control > 1. In-Furnace Controls >

O&M Cost

← Previous | Next →

The O&M Cost screen uses a two table format to show the variable and fixed operation and maintenance costs involved with the In-Furnace Controls NOx control techonolgy.

O&M costs are typically expressed on an average annual basis and are provided in either constant or current dollars for a specified year, as shown in the Status Bar . The following results are provided:

•Variable Cost Components: (left table) Variable operating costs and consumables are directly proportional to the amount of kilowatts produced and are referred to as incremental costs. All the costs are subject to inflation.

•Fuel: The total fuel costs associated with gas reburn are included here.

•Reagent: The total reagent costs (urea and ammonia) used for the SNCR system are included here.

•Water: This is the cost of the water used to dilute the urea for the SNCR.

•Electricity: This is the cost of power used for the pumps to move reagents and water in the SNCR.

•Total Variable Costs: This is the sum of the entire variable O&M costs listed above. This result is highlighted in yellow.

•Fixed Cost Components: (right table) Fixed operating costs are essentially independent of actual capacity factor, number of hours of operation, or amount of kilowatts produced. All the costs are subject to inflation.

•Combustion NOx Costs: This is the fixed O&M cost associated with the LNB, OFA, and gas reburn systems.

•SNCR Boiler Costs: This is the fixed O&M cost associated with the SNCR system.

•Total Fixed Costs: This is the sum of all the fixed O&M costs listed above. This result is highlighted in yellow.

•Total O&M Costs: This is the sum of the total variable and total fixed O&M costs. It is used to determine the base plant total revenue requirement. This result is highlighted in yellow.