Project Input. Flexible Inputs. Version 7.0

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Project Input Version 7.0 Flexible Inputs SOAPP CT provides worksheets for you to specify your input for each of the four data sets that define a specific project and conceptual design. This worksheet format allows you to copy and paste inputs directly into SOAPP CT from other sources, such as a spreadsheet you might set up to model some of your key assumptions. Fifteen input arrays allow you to specify your own models of critical project assumptions, such as the behavior of contract or market rates for fuel, energy charges, capacity charges, etc. over time. You can choose to define these models with a full set of discrete values or simply specify a starting value and average escalation rate for any number of periods and SOAPP CT will generate values that meet these specifications. SOAPP CT will display plots to assist you in verifying the models you specify. www.soapp.com 1.650.855.2666 info@soapp.com

Project Input (continued) Version 7.0 Accurate Combustion Turbine Modeling Select one of the 100 combustion turbines modeled from data supplied to SOAPP s specifications by manufacturers for specific turbines. Or, use SOAPP CT s Advanced Analysis feature to input the performance and emissions of any other combustion turbine you would like to evaluate. Intelligent Defaults Suggested input values are calculated based on current inputs. Input Validation Input values are validated for internal consistency. Values that are not feasible in the context of other inputs are highlighted in red. Project Validation Input values that cannot be validated out of the context of one or more of the other three data sets of project design criteria are shown in blue. These values are automatically validated before generating a plant design. Multiple Choice Selections Simplified specification of project design. View All Possible Inputs All possible inputs are always shown to speed consideration of options. Unneeded inputs are disabled ( grayed out ) consistent with current user inputs. www.soapp.com 1.650.855.2666 info@soapp.com

Conceptual Design Inputs Summary Conceptual Design: 250 MW CCCG, GE 7FA, Multi Shaft, SCR, ACC, Arizona Unit Data Variable Value Units Min Default Max GE 7FA, CCCG, 3P@1800, Int DB T=1350F, Multi Shaft, SCR, ACC CT Model Number GE PG7241(FA)-60 Hz N/A N/A GE PG7241(FA)-60 Hz N/A Number of CT's 1 N/A 1 2 4 Cycle Type Combined Cycle Cogeneration N/A N/A Combined Cycle Cogeneration N/A Duty Cycle/Mission Base Load N/A N/A Base Load N/A Type of Analysis Periodic N/A N/A Annual N/A Number of Periods 4 N/A 1 1 12 Period Duration - - - hours 0 0 8760 CT NOx Control, Natural Gas Dry Low NOx Combustors N/A N/A Dry Low NOx Combustors N/A CT NOx Control, No 2 Fuel Oil Water Injection N/A N/A Water Injection N/A CT Natural Gas NOx Limit 9 ppmvd @ 15% O2 9 9 75 CT No 2 Fuel Oil NOx Limit 42 ppmvd @ 15% O2 42 42 375 CEM's Included Yes N/A N/A Yes N/A Inlet Air Filtration Pulse Type N/A N/A Pulse Type N/A Inlet Air Cooling Evaporative Coolers N/A N/A No Cooling N/A Inlet Air Cooler Status - - - N/A N/A In Use N/A Air Cooling Discharge Temp - - - F Evaporative Cooler Effectiveness - - - % 0 85 100 CT Pressure Loss Method Workstation Calculated N/A N/A Workstation Calculated N/A CT Inlet Pressure Loss 3.75 in H2O CT Exhaust Pressure Loss 14.00 in H2O Heater Selection Condensate Heater N/A N/A Condensate Heater N/A Deaerator Selection Integral Deaerator N/A N/A Integral Deaerator N/A Number of Pressure Levels Three Pressure N/A N/A Three Pressure N/A HRSG Circulation Natural Circulation N/A N/A Natural Circulation N/A HP Steam Pressure 1800 psia 320 1465 2415 IP Steam Pressure 490 psia 170 440 1650 LP Steam Pressure 100 psia 20 75 200 Hot Reheat Pressure Calc Method Workstation Calculated N/A N/A Workstation Calculated N/A Hot Reheat Pressure 366.3 psia HP Steam Temp 1000 F 628 1000 1050 IP Steam Temp 526 F 475 525 642 LP Steam Temp 338 F 338 460 642 HP Pinch Point 15 F 9 15 400 IP Pinch Point 15 F 9 15 400 LP Pinch Point 30 F 9 15 400 Date: 02/21/04 16:11 Page: 1

Conceptual Design Inputs Summary Conceptual Design: 250 MW CCCG, GE 7FA, Multi Shaft, SCR, ACC, Arizona Variable Value Units Min Default Max HP Evap Approach 20 F 9 20 120 IP Evap Approach 20 F 9 20 120 LP Evap Approach 30 F 9 20 120 HP Export Flow 0 lb/h 0 0 711790 HP Export Process Return Percentage 0.0 % HP Export Process Return Temperature 80 F IP Export Flow 0 lb/h 0 0 43956 IP Export Process Return Percentage 0.0 % IP Export Process Return Temperature 80 F LP Export Flow 0 lb/h 0 0 0 LP Export Process Return Percentage 50.0 % LP Export Process Return Temperature 80 F 60 80 350 Export All Available Flow No N/A N/A No N/A Specify HRSG HP Steam Production? No N/A N/A No N/A User Specified HRSG HP Steam Flow Goal 406000 lb/h Include Duct Burners Yes - Interstage N/A N/A No N/A Duct Burner Maximum Firing Temperature 1400 F 1200 1400 1675 Duct Burner Performance Calc Method Specify Firing Temp N/A N/A Specify Firing Temp N/A Duct Burner Status - - - N/A N/A In Use N/A Duct Burner Firing Temperature - - - F 1100 1300 1600 Duct Burner HP Stm Flow Increase - - - % Duct Burner Fuel Capability Primary Fuel Only N/A N/A Dual Primary/Secondary Fuel N/A SCR Configuration Anhydrous Ammonia Injection N/A N/A Anhydrous Ammonia Injection N/A Include CO Oxidation Catalyst No N/A N/A No N/A CT/ST Shaft Arrangement Multi-Shaft N/A N/A Multi-Shaft N/A Steam Turbine Arrangement G-Reheat, 2 Casing, 1 Flow, Direct Drive N/A N/A G-Reheat, 2 Casing, 1 Flow, Direct Drive N/A ST Exhaust Configuration Axial N/A N/A Axial N/A ST Sizing Criteria Excluding Max Exports/Extractions N/A N/A Excluding Max Exports/Extractions N/A Number of ST Extractions 0 N/A 0 0 4 ST Extraction 1 Export Flow 0 lb/h ST Extraction 1 Export Pressure 1391 psia ST Extraction 1 Process Return Percentage 0.0 % ST Extraction 1 Process Return Temperature 80 F ST Extraction 2 Export Flow 0 lb/h ST Extraction 2 Export Pressure 1245 psia ST Extraction 2 Process Return Percentage 0.0 % ST Extraction 2 Process Return Temperature 80 F Date: 02/21/04 16:11 Page: 2

Conceptual Design Inputs Summary Conceptual Design: 250 MW CCCG, GE 7FA, Multi Shaft, SCR, ACC, Arizona Variable Value Units Min Default Max ST Extraction 3 Export Flow 0 lb/h ST Extraction 3 Export Pressure 1098 psia ST Extraction 3 Process Return Percentage 0.0 % ST Extraction 3 Process Return Temperature 80 F ST Extraction 4 Export Flow 0 lb/h ST Extraction 4 Export Pressure 952 psia ST Extraction 4 Process Return Percentage 0.0 % ST Extraction 4 Process Return Temperature 80 F ST Efficiency Method Workstation Calculated N/A N/A Workstation Calculated N/A HP ST Efficiency 80.0 % IP ST Efficiency 83.0 % LP ST Efficiency 85.0 % Include a Steam Bypass Yes N/A N/A Yes N/A Cooling System Type Air Cooled Condenser N/A N/A Wet Mech Draft Cooling Twr N/A Cycles of Concentration 5.0 N/A Condenser Pressure Calc Method Workstation Calculated N/A N/A Workstation Calculated N/A Design Condenser Pressure 2.83 in Hg Condenser Tube Material Titanium N/A N/A Titanium N/A Condenser Tube Cleaning None N/A Circ Water Pump Sparing 2-50% N/A Include an Auxiliary Boiler No N/A N/A No N/A Auxiliary Boiler Steam Press 1000 psia Auxiliary Boiler Steam Temp 600 F Auxiliary Boiler Steam Flow 500000 lb/h Boiler Feed Pump Sparing 1-100% N/A N/A 1-100% N/A Boiler Feed Pump Design Separate HP and IP Pumps N/A N/A Separate HP and IP Pumps N/A Condensate Pump Sparing 2-50% N/A N/A 2-50% N/A HRSG Enclosures No N/A N/A No N/A Power Block Enclosure Yes N/A N/A Yes N/A Water Treatment Enclosure Yes N/A N/A Yes N/A Warehouse Included No N/A N/A No N/A Include Fire Protection System? Yes N/A N/A Yes N/A Fire Water Source River/Lake N/A N/A River/Lake N/A Substructure Requirements No Piles N/A N/A No Piles N/A Fuel Oil Storage Duration 1 days Fuel Oil Storage Basis Oil Tank Size W/O DB Operating N/A N/A Oil Tank Size with DB Operating N/A Bypass Stack/Diverter Valve No N/A N/A No N/A Date: 02/21/04 16:11 Page: 3

Conceptual Design Inputs Summary Conceptual Design: 250 MW CCCG, GE 7FA, Multi Shaft, SCR, ACC, Arizona Variable Value Units Min Default Max Main Stack Height 150 ft 35 150 300 Switchyard Voltage 115.0 kv 15.0 115.0 500.0 Book Life 30 years 3 30 50 Tax Life 20 years 3 20 50 Commercial Operating Year 2007 N/A 1950 2006 2050 Commercial Operating Month January N/A N/A January N/A Capacity Factor - - - % 1 70 75 Service Factor 75.0 % 40.0 75.0 98.0 Equivalent Availability Factor 92.0 % 75.0 92.0 98.0 Output Degradation Factor - - - %/yr 0.00 1.00 20.00 Heat Rate Degradation Factor - - - %/yr 0.00 0.50 10.00 Number of Starts Per Year 17 N/A 1 17 2000 Tax Depreciation Method MACRS N/A N/A MACRS N/A Tax Depreciation Schedule - - - %/yr 0 0 100 Capital Tax Adjustment - - - % -100 0 100 Import Duties Adjustment - - - % -100 0 100 Freight Adjustment - - - % -100 0 100 Royalties Adjustment - - - % -100 0 100 User Specified Adjustment - - - % -200 0 200 Salvage Values - - - % 0 0 100 Site Data AZ - Moderate Labor Rates, 5 ppm NOx, periodic Max Ambient Dry Bulb Temp 104 F 31 85 125 Max Ambient Wet Bulb Temp 75 F 58 89 104 Min Ambient Dry Bulb Temp 31 F -35-20 104 Min Ambient Wet Bulb Temp 20 F -35-20 75 Perf Point Dry Bulb Temp - - - F 31.00 59.00 104.00 Perf Point Wet Bulb Temp - - - F 54.17 52.00 93.00 Site Elevation 1,117 ft -1,500 600 9,000 Ambient Air Quality Clean N/A N/A Dusty N/A Max Daily Rainfall 3.0 in/day 0.0 7.0 100.0 Average Annual Rainfall 7.5 in/yr 0.0 31.0 460.0 Max Cooling Water Temp 80 F Perf Point Cooling Water Temp - - - F Heat Rejection Water Source River N/A Unit Makeup Water Source Well Water N/A N/A Well Water N/A Makeup Raw Water Consump Charge - - - USD/1,000 gal 0.00 1.00 100.00 Date: 02/21/04 16:11 Page: 4

Conceptual Design Inputs Summary Conceptual Design: 250 MW CCCG, GE 7FA, Multi Shaft, SCR, ACC, Arizona Variable Value Units Min Default Max Circulating Water Thermal Charge - - - USD/MBtu UBC Seismic Zone Zone 0 N/A N/A Zone 0 N/A Stack Natural Gas NOx Limit 5.0 ppmvd @ 15% O2 2.5 5.0 9.0 Stack Fuel Oil NOx Limit 9.0 ppmvd @ 15% O2 Ammonia Emission Limit 5 ppmvd @ 15% O2 2 5 15 Labor Crew Wage Rates - - - USD/h 0.00 50.00 150.00 Construction Labor Index Value - - - N/A 0.00 1.00 2.00 Productivity Multiplier - - - N/A 0.10 1.00 3.00 General Facilities Capital 3.00 % 0.00 5.00 20.00 Eng. & Home Office Fees 6.00 % 0.00 7.00 30.00 Project Contingency 10.00 % 0.00 10.00 50.00 Process Contingency 0.00 % 0.00 0.00 70.00 Land Cost 1,000 USD/acre 0 10,000 1,000,000 Ammonia (Delivered) 192.82 USD/ton 0.00 180.00 500.00 NaOH (Delivered) 240.00 USD/ton 50.00 240.00 500.00 H2SO4 (Delivered) 300.00 USD/ton 50.00 300.00 500.00 SCR Catalyst (Delivered) 200.00 USD/ft3 50.00 280.00 500.00 CO Catalyst (Delivered) 150.00 USD/ft3 Other Waste Disposal 12.85 USD/ton 0.00 12.00 500.00 Catalyst Disposal 22.50 USD/ft3 0.00 21.00 500.00 Non-operating Purchased Power Cost 50.00 USD/MWh 10.00 50.00 100.00 O&M Cost Method WorkStation Calculated N/A N/A Workstation Calculated N/A Fixed O&M Direct Operating Labor 798,000 USD/yr Fixed O&M Direct Maintenance Labor 510,000 USD/yr Fixed O&M Annual Services, Materials & Purch Power 259,000 USD/yr Fixed O&M Indirect Labor Costs 778,000 USD/yr Variable O&M Sched Maintenance Parts & Materials 922,000 USD/yr Variable O&M Sched Maintenance Labor 3,690,000 USD/yr Variable O&M Unplanned Maintenance Allowance 280,000 USD/yr Variable O&M Catalyst Replacement 709,000 USD/yr Variable O&M Other Consumables 691,000 USD/yr Variable O&M Disposal Charges 113,000 USD/yr Variable O&M Byproduct Credit 0 USD/yr Total Fixed Costs 15.50 USD/kW-yr Total Variable Costs 1.50 USD/MWh O&M Labor Index Value 1.000 N/A 0.000 1.000 2.000 O&M Labor Productivity Multiplier 1.000 N/A 0.100 1.000 3.000 Date: 02/21/04 16:11 Page: 5

Conceptual Design Inputs Summary Conceptual Design: 250 MW CCCG, GE 7FA, Multi Shaft, SCR, ACC, Arizona Variable Value Units Min Default Max Maintenance Cost Adjustment 1.000 N/A 0.100 1.000 10.000 Operating Tax Rates - - - % 0.00 35.00 90.00 Insurance Rate 0.40 % 0.00 0.50 30.00 Economic Data IPP, Current$, ROE18%, Mortgage, 2% Inf IPP Loan Period 15 years 5 15 50 Evaluation Basis Current Dollar Analysis N/A N/A Current Dollar Analysis N/A Ownership Type Independent Power Producer N/A N/A Independent Power Producer N/A IPP Analysis Method Solve for Capacity/Energy Charges N/A N/A Solve for Capacity and Energy Charges N/A IPP Equity Repayment Period 20 years 1 20 50 IPP Loan Repay Method Mortgage Style N/A N/A Mortgage Style N/A Inflation Rate 2.00 %/yr 0.00 2.00 30.00 Base Year 2003 N/A 1950 2003 2100 Const Sched Calc Method Workstation Calculated N/A N/A Workstation Calculated N/A User Defined Const Sched Duration 30 months Capital Costs Esc Rate 2.00 %/yr 0.00 2.00 30.00 O&M Costs Esc Rate 2.00 %/yr 0.00 2.00 30.00 Common Equity Fraction 0.25 N/A 0.00 0.25 1.00 Preferred Equity Fraction 0.10 N/A Debt Fraction 0.75 N/A 0.00 0.75 1.00 Return on Common Equity 18.00 % 0.00 18.00 50.00 Return on Preferred Equity 8.40 % Return on Debt 9.000 % 0.000 9.000 30.000 Return on Debt During Construction 10.000 % 0.000 10.000 30.000 Investment Tax Credit Rate 0.00 % 0.00 0.00 90.00 Capacity Payments - - - Energy Payments - - - Byproduct Payments 0.00 USD/klb 0.00 0.00 0.00 HP Steam Export Sales - - - USD/klb IP Steam Export Sales - - - USD/klb LP Steam Export Sales - - - USD/klb ST Extraction 1 Steam Sales - - - USD/klb ST Extraction 2 Steam Sales - - - USD/klb ST Extraction 3 Steam Sales - - - USD/klb ST Extraction 4 Steam Sales - - - USD/klb Fuel Data Natural Gas- $5.25MBtu, 3.5% Esc Date: 02/21/04 16:11 Page: 6

Conceptual Design Inputs Summary Conceptual Design: 250 MW CCCG, GE 7FA, Multi Shaft, SCR, ACC, Arizona Variable Value Units Min Default Max CT Primary Fuel Type Natural Gas N/A N/A Natural Gas N/A CT Secondary Fuel Type None N/A N/A No 2 Fuel Oil N/A CT Secondary Fuel Usage - - - % CT Primary Fuel Price - - - USD/MBtu 0.00 3.00 100.00 CT Secondary Fuel Price - - - USD/MBtu Natural Gas Supply Pressure 400 psig 50 400 1,000 DB Primary Fuel Type Natural Gas N/A N/A Natural Gas N/A DB Secondary Fuel Type None N/A N/A None N/A DB Secondary Fuel Usage - - - % DB Primary Fuel Hydrogen (H2) Constituent 0.00000 mole fraction DB Primary Fuel Hydrocarbon (CxHy) Constituent 0.98806 mole fraction DB Primary Fuel Carbon Dioxide (CO2) Constituent 0.00804 mole fraction DB Primary Fuel Nitrogen (N2) Constituent 0.00390 mole fraction DB Primary Fuel Carbon (C) Constituent 0.00000 mole fraction DB Primary Fuel Sulfur (S) Constituent 0.00000 mole fraction DB Primary Fuel LHV 20,960 Btu/lb DB Primary Fuel HHV Factor 1.11 N/A DB Primary Fuel Price - - - USD/MBtu 0.00 3.00 100.00 DB Secondary Fuel Hydrogen (H2) Constituent 0.13000 mole fraction DB Secondary Fuel HydroCarbon (CxHy) Constituent 0.00000 mole fraction DB Secondary Fuel Carbon Dioxide (CO2) Constituent 0.00000 mole fraction DB Secondary Fuel Nitrogen (N2) Constituent 0.00000 mole fraction DB Secondary Fuel Carbon (C) Constituent 0.86950 mole fraction DB Secondary Fuel Sulfur (S) Constituent 0.00050 mole fraction DB Secondary Fuel LHV 18,560 Btu/lb DB Secondary Fuel HHV Factor 1.06 N/A DB Secondary Fuel Price - - - USD/MBtu Date: 02/21/04 16:11 Page: 7

Period Number Period Duration 1 2383 2 1953 3 2462 4 1962 Period Number Inlet Air Cooler Status Design Point In Use 1 In Use 2 Not in Use 3 Not in Use 4 In Use Period Number Air Cooling Discharge Temp Design Point 59 1 59 2 59 3 59 4 59 Period Number Evaporative Cooler Effectiveness Design Point 85 1 85 2 85 3 85 4 85 Period Number Duct Burner Status Design Point In Use 1 In Use 2 Not in Use 3 Not in Use 4 In Use Period Number Duct Burner Firing Temperature Design Point 1350 1 1350 2 1350 3 1350 4 1350 Period Number Duct Burner HP Stm Flow Increase Design Point 5 1 5 Page: 1

2 5 3 5 4 5 Period Number Capacity Factor Design Point 70 1 70 2 70 3 70 4 70 Year Output Deg. Factor 2003 1 Year HR Deg. Factor 2003.5 Year Tax Deprec. Sched. 1 6.563 2 7 3 6.482 4 5.99 5 5.546 6 5.13 7 4.746 8 4.459 9 4.459 10 4.459 11 4.459 12 4.46 13 4.459 14 4.46 15 4.459 16 4.46 17 4.459 18 4.46 19 4.459 20 4.46 21.56 Component Local Sales Tax Auxiliary Boiler 0 Boiler Feed System Equipment 0 Page: 2

CEM Equipment 0 Circ Water System Equipment 0 Closed Cooling Water System Equip.0 Combustion Turbine 0 Concrete Materials 0 Condensate Heating Equipment 0 Condensate System Equipment 0 Controls & Instrumentation Equipme0 Controls & Instrumentation Materials0 Cranes & Hoists 0 Deaerator 0 Diverter Valve/Bypass Stack 0 Duct Burner 0 Duct Materials 0 Electrical Equipment 0 Electrical Materials 0 Fire Protection Equipment 0 Fuel Gas Compressor 0 Fuel System Equipment 0 HRSG 0 HVAC Equipment 0 HVAC Materials 0 Inlet Air Cooling Equipment 0 Inlet Air Filtration Equipment 0 Insulation Materials 0 Main Condenser and Accessories 0 Main Stack Materials 0 Misc Mechanical Equipment 0 Misc Mechanical Materials 0 Piping Materials 0 Plant Control Systems 0 Post Combustion Emission Cont Equ0 Station & Instrument Air Equipment 0 Steam Turbine 0 Steam Turbine Bypass Equipment 0 Steel Materials 0 Water Treatment Equipment 0 Wiring Materials 0 Page: 3

Component Import Duties Adjustment Auxiliary Boiler 0 Boiler Feed System Equipment 0 CEM Equipment 0 Circ Water System Equipment 0 Closed Cooling Water System Equip.0 Combustion Turbine 0 Concrete Materials 0 Condensate Heating Equipment 0 Condensate System Equipment 0 Controls & Instrumentation Equipme0 Controls & Instrumentation Materials0 Cranes & Hoists 0 Deaerator 0 Diverter Valve/Bypass Stack 0 Duct Burner 0 Duct Materials 0 Electrical Equipment 0 Electrical Materials 0 Fire Protection Equipment 0 Fuel Gas Compressor 0 Fuel System Equipment 0 HRSG 0 HVAC Equipment 0 HVAC Materials 0 Inlet Air Cooling Equipment 0 Inlet Air Filtration Equipment 0 Insulation Materials 0 Main Condenser and Accessories 0 Main Stack Materials 0 Misc Mechanical Equipment 0 Misc Mechanical Materials 0 Piping Materials 0 Plant Control Systems 0 Post Combustion Emission Cont Equ0 Station & Instrument Air Equipment 0 Steam Turbine 0 Steam Turbine Bypass Equipment 0 Page: 4

Steel Materials 0 Water Treatment Equipment 0 Wiring Materials 0 Component Freight Adjustment Auxiliary Boiler 0 Boiler Feed System Equipment 0 CEM Equipment 0 Circ Water System Equipment 0 Closed Cooling Water System Equip.0 Combustion Turbine 0 Concrete Materials 0 Condensate Heating Equipment 0 Condensate System Equipment 0 Controls & Instrumentation Equipme0 Controls & Instrumentation Materials0 Cranes & Hoists 0 Deaerator 0 Diverter Valve/Bypass Stack 0 Duct Burner 0 Duct Materials 0 Electrical Equipment 0 Electrical Materials 0 Fire Protection Equipment 0 Fuel Gas Compressor 0 Fuel System Equipment 0 HRSG 0 HVAC Equipment 0 HVAC Materials 0 Inlet Air Cooling Equipment 0 Inlet Air Filtration Equipment 0 Insulation Materials 0 Main Condenser and Accessories 0 Main Stack Materials 0 Misc Mechanical Equipment 0 Misc Mechanical Materials 0 Piping Materials 0 Plant Control Systems 0 Post Combustion Emission Cont Equ0 Page: 5

Station & Instrument Air Equipment 0 Steam Turbine 0 Steam Turbine Bypass Equipment 0 Steel Materials 0 Water Treatment Equipment 0 Wiring Materials 0 Component Royalties Adjustment Auxiliary Boiler 0 Boiler Feed System Equipment 0 CEM Equipment 0 Circ Water System Equipment 0 Closed Cooling Water System Equip.0 Combustion Turbine 0 Concrete Materials 0 Condensate Heating Equipment 0 Condensate System Equipment 0 Controls & Instrumentation Equipme0 Controls & Instrumentation Materials0 Cranes & Hoists 0 Deaerator 0 Diverter Valve/Bypass Stack 0 Duct Burner 0 Duct Materials 0 Electrical Equipment 0 Electrical Materials 0 Fire Protection Equipment 0 Fuel Gas Compressor 0 Fuel System Equipment 0 HRSG 0 HVAC Equipment 0 HVAC Materials 0 Inlet Air Cooling Equipment 0 Inlet Air Filtration Equipment 0 Insulation Materials 0 Main Condenser and Accessories 0 Main Stack Materials 0 Misc Mechanical Equipment 0 Misc Mechanical Materials 0 Page: 6

Piping Materials 0 Plant Control Systems 0 Post Combustion Emission Cont Equ0 Station & Instrument Air Equipment 0 Steam Turbine 0 Steam Turbine Bypass Equipment 0 Steel Materials 0 Water Treatment Equipment 0 Wiring Materials 0 Component User Specified Adjustment Auxiliary Boiler 0 Boiler Feed System Equipment 0 CEM Equipment 0 Circ Water System Equipment 0 Closed Cooling Water System Equip.0 Combustion Turbine 0 Concrete Materials 0 Condensate Heating Equipment 0 Condensate System Equipment 0 Controls & Instrumentation Equipme0 Controls & Instrumentation Materials0 Cranes & Hoists 0 Deaerator 0 Diverter Valve/Bypass Stack 0 Duct Burner 0 Duct Materials 0 Electrical Equipment 0 Electrical Materials 0 Fire Protection Equipment 0 Fuel Gas Compressor 0 Fuel System Equipment 0 HRSG 0 HVAC Equipment 0 HVAC Materials 0 Inlet Air Cooling Equipment 0 Inlet Air Filtration Equipment 0 Insulation Materials 0 Main Condenser and Accessories 0 Page: 7

Main Stack Materials 0 Misc Mechanical Equipment 0 Misc Mechanical Materials 0 Piping Materials 0 Plant Control Systems 0 Post Combustion Emission Cont Equ0 Station & Instrument Air Equipment 0 Steam Turbine 0 Steam Turbine Bypass Equipment 0 Steel Materials 0 Water Treatment Equipment 0 Wiring Materials 0 Component Salvage Values Auxiliary Boiler 0 Boiler Feed System Equipment 0 CEM Equipment 0 Circ Water System Equipment 0 Closed Cooling Water System Equip.0 Combustion Turbine 0 Concrete Materials 0 Condensate Heating Equipment 0 Condensate System Equipment 0 Controls & Instrumentation Equipme0 Controls & Instrumentation Materials0 Cranes & Hoists 0 Deaerator 0 Diverter Valve/Bypass Stack 0 Duct Burner 0 Duct Materials 0 Electrical Equipment 0 Electrical Materials 0 Fire Protection Equipment 0 Fuel Gas Compressor 0 Fuel System Equipment 0 HRSG 0 HVAC Equipment 0 HVAC Materials 0 Inlet Air Cooling Equipment 0 Page: 8

Inlet Air Filtration Equipment 0 Insulation Materials 0 Main Condenser and Accessories 0 Main Stack Materials 0 Misc Mechanical Equipment 0 Misc Mechanical Materials 0 Piping Materials 0 Plant Control Systems 0 Post Combustion Emission Cont Equ0 Station & Instrument Air Equipment 0 Steam Turbine 0 Steam Turbine Bypass Equipment 0 Steel Materials 0 Water Treatment Equipment 0 Wiring Materials 0 Period Number Perf Point Dry Bulb Temp Design Point 71 1 93.5 2 48.3 3 64 4 88.9 Period Number Perf Point Wet Bulb Temp Design Point 62 1 68 2 41 3 50 4 66 Period Number Perf Point Cooling Water Temp Design Point 60 1 60 2 60 3 60 4 60 Year MU Consump Charge Escalation 2003 1 0 Year CW Thermal Charge Escalation 2003.06 0 Page: 9

Name Code Base Comp Fringes Other Equip FICA Profit Rate Concrete Chimney CONC 22.5 5.49 8.64 0 6.95 1.98 14.48 60.04 Concrete Direct COND 21.66 3.39 8.33 0 2.63 1.91 12.16 50.08 Concrete Pump CONP 22.15 3.35 8.65 0 8.25 1.94 14.1 58.44 Condenser CNDR 24.86 2.8 10.52 0 7.28 2.15 15.18 62.79 Conduits And Trays ECND 24.36 2.36 8.59 0.88 2.12 12.37 50.68 Earthwork ETWK 25.28 2.2 10.48 0 61.72 2.19 31.47 133.34 Electrical, Heavy EQ 1 EHEA 23.52 2.46 8.73 0 2.08 2.05 12.5 51.34 Electrical, Heavy EQ 2&3 EHEB 24.9 3.85 9.95 0 3.07 2.16 14.08 58.01 Electrical, Heavy EQ 4 EHEC 24.9 3.85 9.95 0 4.3 2.16 14.45 59.61 Embedded Steel EMBD 20.99 1.97 8.74 0 11.22 1.86 14.19 58.97 Excavation EXFD 20.98 1.97 8.73 0 11.21 1.86 14.18 58.93 Formwork FORM 22.55 3.58 8.18 0 17.39 1.97 16.91 70.58 HVAC HVAC 24.71 1.82 9.5 0 4.84 2.13 13.79 56.79 Instrumentation Electrical INEL 26.71 1.22 9.36 0 3.22 2.29 13.8 56.6 Insulation INSL 24.54 2.49 9.71 0 1.99 2.12 13.14 53.99 Masonry MSRY 24.7 3.4 8.22 0 3.08 2.14 13.35 54.89 Misc. Mechanical EQ MECH 25.05 1.64 9.66 0 7.62 2.17 14.75 60.89 Painting PNTR 21.63 8.06 6.56 0 4.02 1.9 13.43 55.6 Paving Bituminous PBIT 23.97 2.45 9.02 0 14.83 2.09 16.57 68.93001 Pumps And Drives PUMP 25.44 1.82 9.79 0 7.42 2.2 14.92 61.59 Reinforcing Cadwelds REIN 25.57 8.41 11.48 0 1.05 2.21 15.54 64.25999 Seeding & Mulching MSTR 20.88 2.91 7.44 0 10.26 1.85 13.76 57.1 Station Piping SPNG 25.48 1.76 9.7 0 11.88 2.21 16.23 67.25999 Steam Generator SGEN 25.44 2.84 10.69 0 15.83 2.2 18.02 75.02 Structural Steel STST 25.7 6.85 11.46 0 17.96 2.22 20.18 84.37 Tanks TANK 24.76 1.7 9.4 0 8.74 2.14 14.91 61.65 Turbine Generator TURB 24.31 2.41 9.45 0 2.03 2.12 12.97 53.29 Water Treatment WTRT 25.43 1.64 9.74 0 8.28 2.2 15.1 62.39 Wiremen WIRE 26.99 1.39 9.67 0 10.31 2.32 16.18 66.86 Yard Piping YDPP 25.01 1.72 9.7 0 9.8 2.17 15.42 63.82 Page: 1

Cost Category CNDR CONC COND CONP ECND EHEA EHEB EHEC EMBD ETWK EXFD Auxiliary Boiler And Accessories.88.88.88 Boiler Feed System.88.88.88 Buildings.88.88.88 Bypass Stack and Diverter Valve.88.88.88 Circulating Water System.88.88.88 Closed Cooling Water System.88.88.88 Combustion Turbine And Accessori.88.88.88 Condensate Heating System.88.88.88 Condensate System.88.88.88 Condenser and Accessories.88.88.88 Continuous Emission Monitoring Sy.88.88.88 Cranes and Hoists.88.88.88 Deaeration System.88.88.88 Duct Burner System.88.88.88 Electrical Systems - Combustion Tur.88.88.88 Electrical Systems - HRSGs.88.88.88 Electrical Systems - Steam Turbine.88.88.88 Fire Protection System.88.88.88 Fuel Gas Compressor and Accessor.88.88.88 Fuel Systems.88.88.88 HRSGs and Accessories.88.88.88 Inlet Air Cooling System.88.88.88 Inlet Filtration System.88.88.88 Main Exhaust Stack.88.88.88 Plant Control System.88.88.88 Post Combustion Emission Controls.88.88.88 Station and Instrument Air System.88.88.88 Steam Bypass System.88.88.88 Steam Piping.88.88.88 Steam Turbine And Accessories.88.88.88 Waste Water Treatment System.88.88.88 Water Treatment System.88.88.88 Cost Category CNDR CONC COND CONP ECND EHEA EHEB EHEC EMBD ETWK EXFD Auxiliary Boiler And Accessories 1 1 1 Boiler Feed System 1 1 1 Buildings 1 1 1 Bypass Stack and Diverter Valve 1 1 1 Page: 1

Circulating Water System 1 1 1 Closed Cooling Water System 1 1 1 Combustion Turbine And Accessori 1 1 1 Condensate Heating System 1 1 1 Condensate System 1 1 1 Condenser and Accessories 1 1 1 Continuous Emission Monitoring Sy 1 1 1 Cranes and Hoists 1 1 1 Deaeration System 1 1 1 Duct Burner System 1 1 1 Electrical Systems - Combustion Tur 1 1 1 Electrical Systems - HRSGs 1 1 1 Electrical Systems - Steam Turbine 1 1 1 Fire Protection System 1 1 1 Fuel Gas Compressor and Accessor 1 1 1 Fuel Systems 1 1 1 HRSGs and Accessories 1 1 1 Inlet Air Cooling System 1 1 1 Inlet Filtration System 1 1 1 Main Exhaust Stack 1 1 1 Plant Control System 1 1 1 Post Combustion Emission Controls 1 1 1 Station and Instrument Air System 1 1 1 Steam Bypass System 1 1 1 Steam Piping 1 1 1 Steam Turbine And Accessories 1 1 1 Waste Water Treatment System 1 1 1 Water Treatment System 1 1 1 Page: 2

FORM HVAC INEL INSL MECH MSRY MSTR PBIT PNTR PUMP REIN SGEN SPNG STST TANK FORM HVAC INEL INSL MECH MSRY MSTR PBIT PNTR PUMP REIN SGEN SPNG STST TANK Page: 3

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TURB WIRE WTRT YDPP TURB WIRE WTRT YDPP Page: 5

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Year Federal Income TaxState Income Tax City Income Tax Property Tax Revenue Tax 2003 35 9 0 1.5 0 Page: 1

Year Escalation Period #1 Period #2 Period #3 Period #4 2003 0 0 0 0 0 Year Escalation Period #1 Period #2 Period #3 Period #4 2003 0 0 0 0 0 Page: 1

Year HP Steam Export Sales Escalation 2003 4.82 0 Year IP Steam Export Sales Escalation 2003 4.82 0 Year LP Steam Export Sales Escalation 2003 4.82 0 Year ST Extraction 1 Steam Sales Escalation 2003 5 0 Year ST Extraction 2 Steam Sales Escalation 2003 5 0 Year ST Extraction 3 Steam Sales Escalation 2003 5 0 Year ST Extraction 4 Steam Sales Escalation 2003 5 0 Period Number CT Secondary Fuel Usage Design Point 5 1 5 2 5 3 5 4 5 Date: 02/21/04 16:15 Page: 1

Year Escalation Period #1 Period #2 Period #3 Period #4 2003 3.5 5.25 5.25 5.25 5.25 Year Escalation Period #1 Period #2 Period #3 Period #4 2003 3.5 0 0 0 0 Date: 02/21/04 16:15 Page: 1

Period Number DB Secondary Fuel Usage Design Point 5 1 5 2 5 3 5 4 5 Date: 02/21/04 16:15 Page: 1

Year Escalation Period #1 Period #2 Period #3 Period #4 2003 3.5 5.25 5.25 5.25 5.25 Year Escalation Period #1 Period #2 Period #3 Period #4 2003 3.5 0 0 0 0 Date: 02/21/04 16:15 Page: 1