### Development of Fly Ash Handling Conveyance Methodologies - **Conveyance Equations and Factors**

This Excel file contains the following worksheets:

Conveyance Equipment

Conveyance Installation

Conveyance Engineering

Conveyance Operating Labor

Conveyance Maintenance Labor

Conv Op and Maint Labor Rate

Conveyance Maint Mats Combination of the operating and labor rates from "Conveyance Operating Labor" and "Conveyance Maintenance Labor" tabs, to calculate the overall median. The value used is highlighted orange. Evaluates the data from the Steam Electric Survey for dry vacuum systems (from Question C2-36) and corresponding cost data for maintenance materials. EPA calculated the ratio between the cost for maintenance materials and the total O&M cost to estimate a factor. The value used (the calculated median percentage) is highlighted orange on the tab. This Excel workbook documents EPA's analyses to calculate equations and factors used in the fly ash conveyance cost methodology.

Contains data from Clyde Bergemann Power Group (CBPG) used to develop a cost curve to estimate equipment capital costs associated with the conveyance portion of the fly ash handling systems, based on fly ash conveyance rates in tons per day

. Contains data from United Conveyor Corporation and capital cost data from the Steam Electric Survey

(Question C2-34) to estimate an installation factor for conveyance data. Contains data from the Steam Electric Survey (Question C2-34) to evaluate the percentage of total capital costs represented by engineering overhead costs. The value used (the calculated median percentage) is highlighted orange. Evaluates the data from the Steam Electric Survey for dry vacuum systems (from Question C2-36) and corresponding data for the operating labor rate. Ultimately, EPA combined operation labor rate and maintenance data for conveyance to calculate the estimate operating and maintenance labor rate for the conveyance portion of the system. See the "Conv Op and Maint Labor Rate" tab for the calculation of the combined rate. Additionally, EPA used this data to determine the operating hours per day estimate for operation for the conveyance system. The value used (the calculated median value) is highlighted orange. Evaluates the data from the Steam Electric Survey for dry vacuum systems (from Question C2-36) and corresponding data for the maintenance labor rate. Ultimately, EPA combined operation labor rate and maintenance data for conveyance to calculate the estimate operating and maintenance labor rate for the conveyance portion of the system. See the "Conv Op and Maint Labor Rate" tab for the calculation of the combined rate. Additionally, EPA used this data to determine the maintenance hours per year estimate for maintenance for the conveyance system. The value used (the calculated median value) is highlighted orange.Combination of the operating and labor rates from "Conveyance Operating Labor" and "Conveyance Maintenance Labor" tabs, to calculate the overall median. The value used

Evaluates the data from the Steam Electric Survey for dry vacuum systems (from Question C2-36) and corresponding cost data for maintenance materials. EPA calculated the ratio between the cost for maintenance materials and the total O&M cost to estimate a factor. The value used (the calculated median percentage) is highlighted orange on the This Excel workbook documents EPA's analyses to calculate equations and factors used in the fly ash conveyance cost methodology.

Contains data from Clyde Bergemann Power Group (CBPG) used to develop a cost curve to estimate equipment capital costs associated with the conveyance portion of the fly ash handling systems, based on fly ash conveyance rates in tons per day

. Contains data from United Conveyor Corporation and capital cost data from the Steam Electric Survey

(Question C2-34) to estimate an installation factor for conveyance data. Contains data from the Steam Electric Survey (Question C2-34) to evaluate the percentage of total capital costs represented by engineering overhead costs. The value used (the calculated median percentage) is highlighted orange. Evaluates the data from the Steam Electric Survey for dry vacuum systems (from Question C2-36) and corresponding data for the operating labor rate. Ultimately, EPA combined operation labor rate and maintenance data for conveyance to calculate the estimate operating and maintenance labor rate for the conveyance portion of the system. See the "Conv Op and Maint Labor Rate" tab for the calculation of the combined rate. Additionally, EPA used this data to determine the operating hours per day estimate for operation for the conveyance system. The value used (the calculated median value) is Evaluates the data from the Steam Electric Survey for dry vacuum systems (from Question C2-36) and corresponding data for the maintenance labor rate. Ultimately, EPA combined operation labor rate and maintenance data for conveyance to calculate the estimate operating and maintenance labor rate for the conveyance portion of the system. See the "Conv Op and Maint Labor Rate" tab for the calculation of the combined rate. Additionally, EPA used this data to determine the maintenance hours per year estimate for maintenance for the conveyance system. The value used (the calculated medianEPA's Methodology for Developing the Conveyance Equipment Capital Cost Curve (per unit conversion)

From Clyde Bergemann Power Group's (CBPG) fly ash handling conversion costs, EPA used the following non CBI data to generate a cost curve to estimate capital costs for conveyance equipment based on fly ash conveyance rate.

For the Dry

Vacuum System (with Dry Vacuum Pumps), EPA used the following costs (assuming that all hopper & branch line equipment will be re-used).

Table Format: FlyAsh Generation Rate TPH 5.5 11.5 16 FlyAsh Conveyance Rate (Generation Rate x 2) TPH 11 21 32 Pri mary Line Size Inches 6 8 10

New Header, Filter-Receiver, Dry Pumps 359,750.00 419,100.00 540,000.00

Using the values above, EPA generated the following plot:

419,100.00 540,000.00 732,312.00

y = 9791.9x + 233721 400,000.00 500,000.00 600,000.00 700,000.00 800,000.00 

## Dry V **acuum Cap Cost**EPA generated the equation of the line using a linear trend line (which had the best r-squared value). Therefore, the following equation was used to estimate unit-level conveyance capital costs for equipment.


### Cost (2010$) = (9,791 × Recalculated Unit Fly Ash Conveyance Rate, tph + 23,372) × Num ber of Unit Vacuum Systems 359,750.00 419,100.00 y = 9791.9x + 233721 R2 = 0.9892

- 100,000.00 200,000.00 300,000.00 400,000.00

0 10 20 30 40 50EPA's Methodology for Developing the Conveyance Equipment Capital Cost Curve (per unit conversion)

From Clyde Bergemann Power Group's (CBPG) fly ash handling conversion costs, EPA used the following non CBI data to generate a cost curve to estimate capital costs for conveyance equipment based on fly ash conveyance rate.

For the Dry

Vacuum System (with Dry Vacuum Pumps), EPA used the following costs (assuming that all hopper & branch line equipment will be re-used).

25 50 12

732,312.00

732,312.00EPA generated the equation of the line using a linear trend line (which had the best r-squared value). Therefore, the following equation was used to estimate unit-level conveyance capital costs for equipment.


### Cost (2010$) = (9,791 × Recalculated Unit Fly Ash Conveyance Rate, tph + 23,372) × Num ber of Unit Vacuum Systems 60From Clyde Bergemann Power Group's (CBPG) fly ash handling conversion costs, EPA used the following non CBI data to generate a cost curve to estimate capital costs for conveyance equipment based on fly ash conveyance rate.EPA generated the equation of the line using a linear trend line (which had the best r-squared value). Therefore, the following equation was used to estimate unit-level conveyance capital costs for equipment.EPA's Methodology for Determining Conveyance Equipment Installation Factor - Determined Using Data from UCC and the Steam Electric Survey (Question C2-34)

**From UCC Data (nonCBI):**

Ty pe of Conversion Approx Equip Cost Min Approx Equip Cost Max Dry Vacuum 4,000,000 4,000,000 Vac/Pressure 10,000,000 15,000,000

**From Questionnaire: Summary Statistics**

Original Ratio Min Original Ratio Max Original Ratio Median [Redacted] 6.917719635 0.676295495

Raw Data from Survey

(Question C2-34) - Installation costs for Dry Vacuum Systems if available.

Plant ID SE Unit ID CBICap Table 2079 SE Unit-A TRUE 2601 SE Unit-2 FALSE 2601 SE Unit-3 FALSE 2601 SE Unit-4 FALSE 9861 SE Unit-3 TRUE 4993 SE Unit-1, SE Unit-2 FALSE 4993 SE Unit-3 FALSE 4237 SE Unit-1 TRUE 4237 SE Unit-2 TRUE 8462 SE Unit-4 TRUE 6672 SE Unit-1 TRUE 7175 SE Unit-1 TRUE 7651 SE Unit-5 TRUE 4599 SE Unit-5 TRUE 4011 SE Unit-1 TRUE 2601 SE Unit-1 FALSE 4702 SE Unit-4 TRUE 8179 SE Unit-1 TRUE 8179 SE Unit-2 TRUE 7761 SE Unit-3 TRUE 7761 SE Unit-4 TRUE 2402 SE Unit-1 FALSE **Notes:**UCC stated that it is difficult to estimate installation capital cost from equipment capital cost. Cost data from UCC show that it can range from a factor of 1 to 3. The comparison of the cost data from the survey does not seem to support the findings from the analysis of the UCC cost data.EPA suggests an installation factor of 2 based on the UCC data.7300 SE Unit-1 FALSE

942 SE Unit-1 FALSE 6634 SE Unit-1 TRUE 6634 SE Unit-2 FALSE 6634 SE Unit-3 FALSE

6634 SE Unit-4 FALSE 2766 SE unit-1 FALSE 8233 SE Unit-1 FALSE 7416 SE Unit-4 FALSE 2623 SE Unit-2 FALSE 9534 SE Unit-7 FALSE 263 SE Unit-6 TRUE 1476 SE Unit-1 FALSE 1476 SE Unit-2 FALSE 9886 SE Unit-4 FALSE

5015 SE Unit-1, SE Unit-2, SE Unit-3 FALSE 2244 SE Unit-3 TRUE 2244 SE Unit-4 TRUE

1957 SE Unit-1 and 2 FALSE

2550 SE Unit-1, SE Unit-2, SE Unit-3, SE Unit-4, SE Unit-5 TRUE

14 SE Unit-1, SE Unit-2, SE Unit-3 TRUE 9213 SE Unit-2 TRUE 654 SE Unit-4 TRUE 70 SE Unit-3 TRUE 9373 SE Unit-1 TRUE

9213 SE Unit-1 TRUE 5043 SE Unit-1 TRUE 5043 SE Unit-2 TRUE 4242 SE Unit-1, SE Unit-2 TRUE 4242 SE Unit-3, SE Unit-4 TRUE 4391 SE Unit-1 FALSE 4676 SE Unit-1 FALSE 4676 SE Unit-2 FALSE 928 SE Unit-5 TRUE 4021 SE Unit-1 FALSE 2612 SE Unit-1, SE Unit-2 TRUE 9161 SE Unit-3 TRUE7411 SE Unit-1 FALSE

7411 SE Unit-2 FALSE 4781 SE Unit-2 FALSE 6596 SE Unit-1 TRUE 9692 SE Unit-1, SE Unit-2 TRUE 9370 SE Unit-1 TRUE

3624 SE Unit-1 TRUE

3624 SE Unit-2 TRUE 3831 SE Unit-1 TRUE 3235 SE Unit-3 FALSE 3235 SE Unit-4 FALSE

70 SE Unit-4 TRUE

556 SE Unit-1 TRUE 3831 SE Unit-2 TRUE 249 SE Unit-1 FALSE

265 SE Unit-1 FALSE 265 SE Unit-2 FALSE 265 SE Unit-3 FALSE 265 SE Unit-4 FALSE

265 SE Unit-5 FALSE 265 SE Unit-6 FALSE 265 SE Unit-7 FALSE 265 SE Unit-8 FALSE 265 SE Unit-9 FALSE 7624 SE Unit-1 FALSE 6005 SE Unit-2 TRUE 6005 SE Unit-3 TRUE 6005 SE Unit-4 TRUE

3672 SE Unit-3 FALSE 3672 SE Unit-2 FALSE 3672 SE Unit-1 FALSE 8013 SE Unit-1 TRUE 8013 SE Unit-2 TRUE 1761 SE Unit-3 TRUE

5887 SE Unit-1 FALSE5887 SE Unit-2 FALSE

5887 SE Unit-3 FALSE 1402 SE Unit-6 TRUE 1402 SE Unit-5 TRUE 3997 SE Unit-1 FALSE 6005 SE Unit-1 TRUE 3997 SE Unit-2 FALSE

548 SE Unit-1, SE Unit-2, SE Unit-3, SE Unit-4, SE Unit-5 FALSE 1402 SE Unit-4 TRUE 562 SE Unit-1, SE Unit-2 FALSE 3018 SE Unit-1, SE Unit-2 FALSE 4679 SE Unit-4 TRUE 3649 SE Unit-1 FALSE 8654 SE Unit-1 FALSE 8654 SE Unit-2 FALSE 8654 SE Unit-4 FALSE 3097 SE Unit-3 FALSE

3097 SE Unit-4 FALSE 8750 SE Unit-1 FALSE

9526 SE Unit-4 FALSE 4690 SE Unit-2 TRUE 3146 SE Unit-2 FALSE 444 SE Unit-1, SE Unit-2 TRUE 493 SE Unit-2 FALSE

1435 SE Unit-1, SE Unit-2, SE Unit-3, SE Unit-4 FALSE 2326 SE Unit-A TRUE 3625 SE Unit-1 FALSE 5743 SE Unit-6 TRUE 8471 SE Unit-2 FALSE 8471 SE Unit-3 FALSE 8471 SE Unit-4 FALSE 8471 SE Unit-5 FALSE 8471 SE Unit-6 FALSE 8704 SE Unit-1 FALSE

9168 SE Unit-1 FALSE

1577 SE Unit-1, SE Unit-2 FALSE 2673 SE Unit-1 FALSE 2673 SE Unit-2 FALSE2673 SE Unit-5 FALSE

3146 SE Unit-1 FALSE 6377 SE Unit-1 FALSE 6377 SE Unit-2 FALSE 6377 SE Unit-3 FALSE 6377 SE Unit-4 FALSE 369 SE Unit-1 FALSE 654 SE Unit-5 FALSE 508 Insert Unit ID FALSE 904 SE Unit-2 FALSE 2548 SE Unit-1 FALSE 2548 SE Unit-2 FALSE 2548 SE Unit-3 FALSE 3309 SE Unit-1 FALSE 3649 SE Unit-2 FALSE

3649 SE Unit-3 FALSE 3649 SE Unit-4 FALSE 4495 SE Unit-1, SE Unit-2 TRUE 8502 SE Unit-1 FALSE 9093 SE Unit-1 FALSE 9481 SE Unit-1 FALSE 3597 SE Unit-1 TRUE 3597 SE Unit-2 TRUE 3597 SE Unit-3 TRUE 3597 SE Unit-4 TRUE 5038 SE Unit-1 FALSE 5038 SE Unit-2 FALSE 8471 SE Unit-1 FALSE

8969 SE Unit-1, SE Unit-2, SE Unit-3 TRUEEPA's Methodology for Determining Conveyance Equipment Installation Factor - Determined Using Data from UCC and the Steam Electric Survey (Question C2-34)

Approx Installation Cost Min Approx Installation Cost Max Ratio Using Min of Cost Range 8,000,000 12,000,000 2 15,000,000 30,000,000 1.5

Retrofit Ratio Min Retrofit Ratio Max Retrofit Ratio Median

0.088110692 7.479215573 0.854894225

Raw Data from Survey

(Question C2-34) - Installation costs for Dry Vacuum Systems if available.

Purchase Equip (Original) Installation (Original) Compare Original

[Redacted] [Redacted] [Redacted] 3425000 322459 0.094148613 3425000 322459 0.094148613 3425000 322459 0.094148613 [Redacted] [Redacted] [Redacted] 1116641.96 165345.75 0.148074097 3408323.09 504684.37 0.148074099 [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 51253881 13399829 0.26144028 [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 800000 300000 0.375 UCC stated that it is difficult to estimate installation capital cost from equipment capital cost. Cost data from UCC show that it can range from a factor of 1 to 3. The comparison of the cost data from the survey does not seem to support the findings from the analysis of the UCC cost data.EPA suggests an installation factor of 2 based on the UCC data.391122 147635 0.377465343 660513 285153 0.43171444 [Redacted] [Redacted] [Redacted] 2083246.25 907088 0.435420441 2083246.25 907088 0.435420441

2083246.25 907088 0.435420441 208000 91000 0.4375 330000 145000 0.439393939 1395979 697509 0.499655797 148273.74 74136.87 0.5 156000 80334 0.514961538 [Redacted] [Redacted] [Redacted] 5000000 3000000 0.6 5000000 3000000 0.6 1188167 764000 0.643007254

1033000 733000 0.709583737 [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

2394976 1822116 0.760807624

[Redacted] [Redacted] [Redacted]

[Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]
[Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 625000 700000 1.12 625000 700000 1.12 625000 700000 1.12 [Redacted] [Redacted] [Redacted] 1182690 1458934 1.233572618 [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]165363 211376 1.278254507 182353 233094 1.278257007 2069448 2702503 1.305905246 [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]
[Redacted] [Redacted] [Redacted]

[Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 1847414 3399582 1.840184171 1934506 3800921 1.964801867
[Redacted] [Redacted] [Redacted]
[Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 56811.61 393006.79 6.917719635

-999 -999Blank Answers -999 -999Blank Answers -999 -999Blank Answers -999 -999Blank Answers

-999 -999Blank Answers -999 -999Blank Answers -999 -999Blank Answers -999 -999Blank Answers -999 -999Blank Answers -999 -999Blank Costs [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

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-999 -999Blank Costs [Redacted] [Redacted] [Redacted] -999 -999Blank Costs -999 -999Blank Costs [Redacted] [Redacted] [Redacted] -999 -999Blank Costs -999 -999Blank Costs -999 -999Blank Costs -999 -999Blank Costs 273614.46 -555 Installation is $0

2199980 -555 Installation is $0 1250947.39 -555 Installation is $0

100000 -555 Installation is $0 [Redacted] [Redacted] [Redacted] 98000 -555 Installation is $0 [Redacted] [Redacted] [Redacted] -111 -111 Missing Costs

-111 -111 Missing Costs [Redacted] [Redacted] [Redacted] -111 -111 Missing Costs [Redacted] [Redacted] [Redacted] -111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs

-111 -111 Missing Costs

-111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs-111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs -111 -111 Missing Costs -999 No Installation Costs -999 No Installation Costs 200000 No Installation Costs 200000 No Installation Costs 200000 No Installation Costs 1433372 No Installation Costs -999 No Installation Costs

-999 No Installation Costs -999 No Installation Costs [Redacted] [Redacted] [Redacted] -999 No Installation Costs -555 -555 Zero -555 -555 Zero [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] -555 -555 Zero -555 -555 Zero -555 -555 Zero

[Redacted] [Redacted] [Redacted]Ratio Using Max of Cost

Range Combination of Min Equip

and Max Installation Combination of Max Equip and Min Installation 3 3 2 2 3 1

Purchased Equip (Modification) Installation (Modification) Compare Modification

[Redacted] [Redacted] [Redacted] -999 -999Blank Costs -999 -999Blank Costs -999 -999Blank Costs [Redacted] [Redacted] [Redacted] -999 -999Blank Costs -999 -999Blank Costs [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] -999 -999Blank Costs [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 94000 30300 0.322340426 UCC stated that it is difficult to estimate installation capital cost from equipment capital cost. Cost data from UCC show that it can range from a factor of 1 to 3. The comparison of the cost data from the survey does not seem to-999 -999Blank Costs -555 -555 Zero [Redacted] [Redacted] [Redacted] -999 -999Blank Costs -999 -999Blank Costs

-999 -999Blank Costs -555 -555 Zero -555 -555 Zero -555 -555 Zero -999 -999Blank Costs 20000 6116 0.3058 [Redacted] [Redacted] [Redacted] -999 -999Blank Costs -999 -999Blank Costs -999 -999Blank Costs

-555 -555 Zero [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

-999 -999Blank Costs

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[Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]
[Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] -111 -111 Missing -555 -555 Zero -555 -555 Zero [Redacted] [Redacted] [Redacted] -999 -999Blank Costs [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]164422.47 147027.72 0.894206978 308195.28 164422.47 0.533500935 -999 -999Blank Costs [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]
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28832115 19819781 0.687420295 28832115 19819781 0.687420295 28832115 19819781 0.687420295 28832115 19819781 0.687420295

28832115 19819781 0.687420295 28832115 19819781 0.687420295 28832115 19819781 0.687420295 28832115 19819781 0.687420295 28832115 19819781 0.687420295 209373 18448 0.088110692 [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

2045600 1748771 0.854893919 871895 745378 0.854894225 435947 372689 0.854895205 [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

368026 408000 1.108617326368026 408000 1.108617326 368026 408000 1.108617326 [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 393120 567720 1.444139194 [Redacted] [Redacted] [Redacted] 698880 1920080 2.747367216

106817 390210 3.653070204 [Redacted] [Redacted] [Redacted] 103515 774211 7.479215573 -999 -999Blank Costs [Redacted] [Redacted] [Redacted] 1527885 -111 Missing Installation Costs -555 -555 Zero -555 -555 Zero -555 -555 Zero -999 -999Blank Costs

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-999 35000Blank Equipment Cost -111 -111 Missing -111 -111 Missing-111 -111 Missing -111 -111 Missing -111 -111 Missing -111 -111 Missing -111 -111 Missing -111 -111 Missing -555 -555 Zero -555 -555 Zero -999 No Installation Costs -999 No Installation Costs -999 No Installation Costs -999 No Installation Costs -999 No Installation Costs -999 No Installation Costs 1618534 No Installation Costs

2494345 No Installation Costs 2354450 No Installation Costs [Redacted] [Redacted] [Redacted] -999 No Installation Costs 8000 2000 0.25 7209000 3541905 0.491317104 [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] -999 -999Blank Costs -999 -999Blank Costs -999 -999Blank Costs

[Redacted] [Redacted] [Redacted]EPA's Methodology for Estimating the Engineering Overhead Factor (based on responses from the survey; C2-34).

From Steam Electric Survey - Question C2-34

Plant ID SE Unit ID CBIFlag Project Cost

14 SE Unit-1, SE Unit-2, SE Unit-3 TRUE [Redacted] [Redacted] 249 SE Unit-1 FALSE Engineering Overhead 15063.55 263 SE Unit-6 TRUE [Redacted] [Redacted] 654 SE Unit-4 TRUE [Redacted] [Redacted] 928 SE Unit-5 TRUE [Redacted] [Redacted] 942 SE Unit-1 FALSE Engineering Overhead 376193 1957 SE Unit-1 and 2 FALSE Engineering Overhead 0 2244 SE Unit-3 TRUE [Redacted] [Redacted] 2244 SE Unit-4 TRUE [Redacted] [Redacted] 2550 SE Unit-1, SE Unit-2, SE Unit-3, SE Unit-4, SE Unit-5 TRUE [Redacted] [Redacted] 2612 SE Unit-1, SE Unit-2 TRUE [Redacted] [Redacted] 2766 SE unit-1 FALSE Engineering Overhead 10000 3097 SE Unit-4 FALSE Engineering Overhead 0 3146 SE Unit-2 FALSE Engineering Overhead 0 3235 SE Unit-3 FALSE Engineering Overhead 0 3235 SE Unit-4 FALSE Engineering Overhead 0 3597 SE Unit-1 TRUE [Redacted] [Redacted] 3597 SE Unit-2 TRUE [Redacted] [Redacted] 3597 SE Unit-3 TRUE [Redacted] [Redacted] 3597 SE Unit-4 TRUE [Redacted] [Redacted] 3624 SE Unit-1 TRUE [Redacted] [Redacted] 3624 SE Unit-2 TRUE [Redacted] [Redacted] 3831 SE Unit-1 TRUE [Redacted] [Redacted] 3831 SE Unit-2 TRUE [Redacted] [Redacted] 4011 SE Unit-1 TRUE [Redacted] [Redacted] 4021 SE Unit-1 FALSE Engineering Overhead 65000 4237 SE Unit-1 TRUE [Redacted] [Redacted] 4237 SE Unit-2 TRUE [Redacted] [Redacted] 4242 SE Unit-1, SE Unit-2 TRUE [Redacted] [Redacted] 4242 SE Unit-3, SE Unit-4 TRUE [Redacted] [Redacted] 4391 SE Unit-1 FALSE Engineering Overhead 10000 4599 SE Unit-5 TRUE [Redacted] [Redacted] 4676 SE Unit-1 FALSE Engineering Overhead 10000 4676 SE Unit-2 FALSE Engineering Overhead 10000 EPA used data from C2-34 to compare the engineering costs to total capital costs to develop a factor for estimating engineering overhead costs. EPA excluded any responses that were marked as blank or missing, and total capital costs listed as zero.4690 SE Unit-2 TRUE [Redacted] [Redacted]

4702 SE Unit-4 TRUE [Redacted] [Redacted] 4781 SE Unit-2 FALSE Engineering Overhead 94458 4993 SE Unit-1, SE Unit-2 FALSE Engineering Overhead 9700.55 4993 SE Unit-3 FALSE Engineering Overhead 29608.95 5015 SE Unit-1, SE Unit-2, SE Unit-3 FALSE Engineering Overhead 0 5043 SE Unit-1 TRUE [Redacted] [Redacted] 5043 SE Unit-2 TRUE [Redacted] [Redacted] 6672 SE Unit-1 TRUE [Redacted] [Redacted] 7300 SE Unit-1 FALSE Engineering Overhead 125000 7416 SE Unit-4 FALSE Engineering Overhead 68771 7651 SE Unit-5 TRUE [Redacted] [Redacted] 8179 SE Unit-1 TRUE [Redacted] [Redacted] 8179 SE Unit-2 TRUE [Redacted] [Redacted] 8233 SE Unit-1 FALSE Engineering Overhead 16000 8471 SE Unit-1 FALSE Engineering Overhead 0 8750 SE Unit-1 FALSE Engineering Overhead 0 8969 SE Unit-1, SE Unit-2, SE Unit-3 TRUE [Redacted] [Redacted] 9161 SE Unit-3 TRUE [Redacted] [Redacted] 9370 SE Unit-1 TRUE [Redacted] [Redacted] 9526 SE Unit-4 FALSE Engineering Overhead 0 9534 SE Unit-7 FALSE Engineering Overhead 50000 9861 SE Unit-3 TRUE [Redacted] [Redacted]EPA's Methodology for Estimating the Engineering Overhead Factor (based on responses from the survey; C2-34).

Year Basis Plant ID SE Unit ID CBIFlag Project [Redacted] 14 SE Unit-1, SE Unit-2, SE Unit-3 TRUE [Redacted] -999 249 SE Unit-1 FALSE Total Capital [Redacted] 263 SE Unit-6 TRUE [Redacted] [Redacted] 654 SE Unit-4 TRUE [Redacted] [Redacted] 928 SE Unit-5 TRUE [Redacted] 2002 942 SE Unit-1 FALSE Total Capital -999 1957 SE Unit-1 and 2 FALSE Total Capital [Redacted] 2244 SE Unit-3 TRUE [Redacted] [Redacted] 2244 SE Unit-4 TRUE [Redacted] [Redacted] 2550 SE Unit-1, SE Unit-2, SE Unit-3, SE Unit-4, SE Unit-5 TRUE [Redacted] [Redacted] 2612 SE Unit-1, SE Unit-2 TRUE [Redacted] 2003 2766 SE unit-1 FALSE Total Capital -999 3097 SE Unit-4 FALSE Total Capital 2008 3146 SE Unit-2 FALSE Total Capital -999 3235 SE Unit-3 FALSE Total Capital -999 3235 SE Unit-4 FALSE Total Capital [Redacted] 3597 SE Unit-1 TRUE [Redacted] [Redacted] 3597 SE Unit-2 TRUE [Redacted] [Redacted] 3597 SE Unit-3 TRUE [Redacted] [Redacted] 3597 SE Unit-4 TRUE [Redacted] [Redacted] 3624 SE Unit-1 TRUE [Redacted] [Redacted] 3624 SE Unit-2 TRUE [Redacted] [Redacted] 3831 SE Unit-1 TRUE [Redacted] [Redacted] 3831 SE Unit-2 TRUE [Redacted] [Redacted] 4011 SE Unit-1 TRUE [Redacted] 2008 4021 SE Unit-1 FALSE Total Capital [Redacted] 4237 SE Unit-1 TRUE [Redacted] [Redacted] 4237 SE Unit-2 TRUE [Redacted] [Redacted] 4242 SE Unit-1, SE Unit-2 TRUE [Redacted] [Redacted] 4242 SE Unit-3, SE Unit-4 TRUE [Redacted] 2006 4391 SE Unit-1 FALSE Total Capital [Redacted] 4599 SE Unit-5 TRUE [Redacted] 2006 4676 SE Unit-1 FALSE Total Capital 2006 4676 SE Unit-2 FALSE Total Capital EPA used data from C2-34 to compare the engineering costs to total capital costs to develop a factor for estimating engineering overhead costs. EPA excluded any responses that were marked as blank or missing, and total capital costs listed as zero.[Redacted] 4690 SE Unit-2 TRUE [Redacted]

[Redacted] 4702 SE Unit-4 TRUE [Redacted] 2008 4781 SE Unit-2 FALSE Total Capital 2009 4993 SE Unit-1, SE Unit-2 FALSE Total Capital 2009 4993 SE Unit-3 FALSE Total Capital 2002 5015 SE Unit-1, SE Unit-2, SE Unit-3 FALSE Total Capital [Redacted] 5043 SE Unit-1 TRUE [Redacted] [Redacted] 5043 SE Unit-2 TRUE [Redacted] [Redacted] 6672 SE Unit-1 TRUE [Redacted] -999 7300 SE Unit-1 FALSE Total Capital 2006 7416 SE Unit-4 FALSE Total Capital [Redacted] 7651 SE Unit-5 TRUE [Redacted] [Redacted] 8179 SE Unit-1 TRUE [Redacted] [Redacted] 8179 SE Unit-2 TRUE [Redacted] 2007 8233 SE Unit-1 FALSE Total Capital -999 8471 SE Unit-1 FALSE Total Capital -999 8750 SE Unit-1 FALSE Total Capital [Redacted] 8969 SE Unit-1, SE Unit-2, SE Unit-3 TRUE [Redacted] [Redacted] 9161 SE Unit-3 TRUE [Redacted] [Redacted] 9370 SE Unit-1 TRUE [Redacted] 2006 9526 SE Unit-4 FALSE Total Capital 2002 9534 SE Unit-7 FALSE Total Capital [Redacted] 9861 SE Unit-3 TRUE [Redacted]Cost Year Basis **Total Capital minus Overhead**  **Overhead % of**

**Capital (excluding**  **overhead)** [Redacted] [Redacted] [Redacted] [Redacted] 505596.87NA 490533.32 3% [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 2283473 NA 1907280 20% 4217092NA 4217092 0% [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

330000NA 320000 3% 2289444.96NA 2289444.96 0% 95780NA 95780 0% 5246996NA 5246996 0% 5735427NA 5735427 0% [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] 3067656NA 3002656 2% [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

325000NA 315000 3% [Redacted] [Redacted] [Redacted] [Redacted] 1895000NA 1885000 1% 1895000NA 1885000 1%[Redacted] [Redacted] [Redacted] [Redacted]

[Redacted] [Redacted] [Redacted] [Redacted] 5446649NA 5352191 2% 1406801.11 NA 1397100.56 1% 13985861.63 NA 13956252.68 0% 2342000NA 2342000 0% [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

765157NA 640157 20% 2871037NA 2802266 2% [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

529000NA 513000 3% 143450NA 143450 0% 1629258.67NA 1629258.67 0% [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted] [Redacted]

122000NA 122000 0% 388391 NA 338391 15% [Redacted] [Redacted] [Redacted] [Redacted]

**Min 0%**  **Max 29%**  **Average 4.419%**  **Median [Redacted]** EPA's Methodology for Estimating Operating Labor Rates for Dry Vacuum Systems

Assumptions Operati ng Days = 2009 Calendar days of operation from Table A-8.

Summary Statistics: U.S. Labor Stats (http://www.bls.gov/oes/current/oes_nat.htm) Mean Hourly Wage Factor to

Load Wages Loaded

Wages Operati ng Engineer 21.24 0.3 27.61 Engineering Technician 27.66 0.3 35.96

**All plant-level data has been removed from this tab as a result of CBI sanitization. All data used to calculate conveyance operating labor factors is considered CBI or CBI deducible.** **All plant-level data has been removed from this tab as a result of CBI sanitization. All data used to calculate conveyance operating labor**EPA's Methodology for Estimating Maintenance Labor Rates and ours per Year for Dry Vacuum Systems
Notes: This is similar to the operating O&M, just includes DPY in the analysis.

Summary Statistics: U.S. Labor Stats (http://www.bls.gov/oes/current/oes_nat.htm)

Mean Hourly

Wage Factor to

Load Wages Loaded Wages Operating Engineer 21.24 0.3 27.61 Engineering Technician 27.66 0.3 35.96

**All plant-level data has been removed from this tab as a result of CBI sanitization. All data used to calculate conveyance maintenance labor factors is considered CBI or CBI** EPA's Methodology for Estimating Maintenance Labor Rates and ours per Year for Dry Vacuum SystemsEPA's Methodology for Calculating the Operating and Maintenance Labor Rate for Conveyance Costs

EPA took the median of all costs for operating labor and maintenance labor (calculation shown below).

**All plant-level data has been removed from this tab as a result of CBI sanitization. All data used to calculate conveyance operating and maintenance labor factors is considered CBI or CBI deducible.** EPA's Methodology for Calculating the Operating and Maintenance Labor Rate for Conveyance Costs

EPA took the median of all costs for operating labor and maintenance labor (calculation shown below).

**All plant-level data has been removed from this tab as a result of CBI sanitization. All data used to calculate conveyance operating and maintenance labor factors is considered CBI or CBI deducible.** EPA's Methodology for Calculating the Conveyance Maintenance Materials Factor

Summary Stats Methodology: ($ Maintenance Mats + $ Other)/(Opr Labor $ + Maintenance Labor $ + Energy $)

**All plant-level data has been removed from this tab as a result of CBI sanitization. All data used to calculate conveyance maintenance materials**  **factors is considered CBI or CBI deducible.**Methodology: ($ Maintenance Mats + $ Other)/(Opr Labor $ + Maintenance Labor $ + Energy $)