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Overview
This help page provides guidance for working with the supplemental Subpart P calculation spreadsheets. The guidance provides step-by-step instructions for the following tasks:
- #Selecting Selecting the Appropriate Calculation Spreadsheet
- #Downloading Downloading a Calculation Spreadsheet
- General information on Using a Calculation Spreadsheet
- Using the Equation P-1 Calculation Spreadsheet
- Using the Equation P-2 Calculation Spreadsheet
- Using the Equation P-3 Calculation Spreadsheet
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For each process unit with a gaseous feedstock, users should calculate annual CO2 emissions using Equation P-1 via the Equation P-1 Calculation Worksheet. Equation P-1 is provided below:
(Equation P-1)
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For each process unit with a liquid feedstock, users should calculate annual CO2 emissions using Equation P-2 via the Equation P-2 Calculation Worksheet. Equation P-2 is provided below:
(Equation P-2)
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For each process unit with a solid feedstock, users should calculate annual CO2 emissions using Equation P-3 via the Equation P-3 Calculation Worksheet. Equation P-3 is provided below:
(Equation P-3)
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Downloading a Calculation Spreadsheet |
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The guidance provided in this section applies to each of the calculation spreadsheets for Subpart P. Additional guidance is provided for each individual calculation spreadsheet in the sections below.
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Multiple process units |
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Use the P-1 Calculation Worksheet to calculate the annual CO2 emissions from each hydrogen production process unit with a gaseous feedstock. A separate worksheet is to be used for each fuel and feedstock used in each hydrogen production process unit. Calculations for hydrogen production process units with liquid and or solid feedstocks should be performed using different calculation worksheets and different equations. The P-1 Calculation Worksheet performs the calculation using Equation P-1, provided below.
(Equation P-1) | |
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Begin by entering the facility name, your name, the process unit name or identifier, the reporting period, and any additional comments in the green input cells of the general information table located immediately below the equation in the calculation spreadsheet. This is for your records.
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Next, enter the requested information in the green input cells in the Input Data table.
The calculation worksheet will calculate the annual CO2 emissions from a unit with a gaseous feedstock. This calculated value will be displayed in the red-bordered cell in the Annual CO2 Emissions (metric tons) from Equation P-1 table at the bottom of the worksheet. This value should be entered in e-GGRT for this process unit.
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Using the P-2 Calculation Spreadsheet |
Use the P-2 Calculation Worksheet to calculate the annual CO2 emissions from each hydrogen production process unit with a liquid feedstock. A separate worksheet is to be used for each fuel and or feedstock used in each hydrogen production process unit. Calculations for process units with gaseous and or solid feedstocks should be performed using different calculation worksheets and different equations. The P-2 Calculation Worksheet performs the calculation using Equation P-2, provided below.
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Next, enter the requested information in the green input cells in the Input Data table.
The calculation worksheet will calculate the annual CO2 emissions from a unit with a liquid feedstock. This calculated value will be displayed in the red-bordered cell in the Annual CO2 Emissions (metric tons) from Equation P-2 table at the bottom of the worksheet. This value should be entered in e-GGRT for this process unit.
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Using the P-3 Calculation Spreadsheet |
Use the P-3 Calculation Worksheet to calculate the annual CO2 emissions from each hydrogen production process unit with a solid feedstock. A separate worksheet is to be used for each fuel and or feedstock used in each hydrogen production process unit. Calculations for process units with gaseous and or liquid feedstocks should be performed using different calculation worksheets and different equations. The P-3 Calculation Worksheet performs the calculation using Equation P-3, provided below.
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Next, enter the requested information in the green input cells in the Input Data table.
The calculation worksheet will calculate the annual CO2 emissions from a unit with a solid feedstock. This calculated value will be displayed in the red-bordered cell in the Annual CO2 Emissions (metric tons) from Equation P-3 table at the bottom of the worksheet. This value should be entered in e-GGRT for this process unit.
Gather the data from all spreadsheets used for this unit to total the CO2 emissions from the unit during the reporting year. The final step is to enter this total quantity of annual CO2 emissions for this unit in the red box on the corresponding hydrogen production process unit page of e-GGRT