Home > GHG Reporting Instructions > Preparing Your Annual GHG Reporting > Subpart Reporting Instructions > Subpart BB - Silicon Carbide Production > Using e-GGRT to Prepare Your Subpart BB Report for RY2014 and Later Years
Using e-GGRT to Prepare Your Subpart BB Report for RY2014 and Later Years
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Once you have added Subpart BB to the list of subparts you will report and have clicked on the "Open" link next to Subpart BB, you will see the following screen:

Click this link to expand

Select one of the following methodologies:

  • Emissions not calculated using CEMS
  • Emissions calculated using CEMS

Next, click the START button.

Emissions Not Calculated Using CEMS

If you selected "Emissions not calculated using CEMS" in the Methodology drop-down menu, the following screen will appear after clicking the START button:

Click this link to expand

Enter the following information:

  • Annual production of silicon carbide (tons)
  • Annual production capacity of silicon carbide (tons)
  • Indicator of whether the carbon content of petroleum coke is based on reports from the supplier or through self measurement using applicable ASTM standard method
    • Measured carbon content of petroleum coke as determined for QA/QC of supplier data (kg C/kg coke) (This field will appear only if you selected "Supplier records"
  • Number of months that missing data procedures were followed to determine the carbon content of petroleum coke
  • Number of months that missing data procedures were followed to determine the monthly petroleum coke consumption
  • Annual CO2 mass emissions from Eq. BB-2 (metric tons). See Subpart BB Entering Equation Inputs Using IVT for instructions on how to enter your equation inputs in the inputs verifier module.

Click SAVE.

Click Facility Overview to return to the overview screen.

Emissions Calculated Using CEMS

If you selected "Emissions calculated using CEMS" in the Methodology drop-down menu, the following screen will appear after clicking the START button:

Click this link to expand

Next, download the Subpart BB reporting form. Please see Reporting Form Instructions on downloading the blank reporting form and uploading the completed reporting form.

For information on completing the Subpart BB reporting form, refer to Subpart BB - Facility Information and Emissions

If you attempt to upload a file but your file is not accepted by e-GGRT, it is generally because your file has a critical flaw or is missing essential data. The reason why the file was not acceptable is displayed as a screen error on the upload page.

During the upload, e-GGRT will generate a validation report which will list potential deficiencies or issues with your reporting form.  Click on the "Subpart BB: View Validation" link to review your validation report. An explanation of the validation report and the process for correcting validation issues prior to submission is presented in Reporting Form Validation

Once you have addressed the validation issues to the extent you believe necessary, and once you have completed any other applicable subparts, you must generate, review, certify, and submit your annual report as described in How to Submit an Annual Report

After successfully uploading the reporting form, complete the following fields on the screen:

  • Annual production of silicon carbide (tons)
  • Annual production capacity of silicon carbide (tons)
  • Annual consumption of petroleum coke (tons)
  • Annual CO2 mass emissions (metric tons)
  • Annual CH4 mass emissions (metric tons)
  • Annual N2O mass emissions

When finished, click SAVE.

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