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Step 1 - Indicate NGL Products Supplied

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First, you must select the product types supplied by your fractionator or consignee. Click this link to view definitions of these products.

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This screen provides a warning that by deselecting a particular product, the GHG quantity associated with that product will not be included in the GHG report for this supplier.

If you wish to proceed with deselecting this product, click "DESELECT"“DESELECT”. If you do supply this product, you would click "CANCEL"“CANCEL”.

Regardless of which selection you make, you will be returned to the Subpart NN overview page.

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Repeat Steps 2 and 3 for each product supplied by your facility.

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Find the table titled "GHG SUMMARY" and click OPEN to enter GHG data for a single product.

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Use the radio buttons to select the methodology used to calculate potential CO₂ quantities associated with the complete combustion or oxidation of this product.

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If you selected Methodology 1 in Step 1, Cal e-GGRT will guide you to the page containing Subpart NN Eq. NN-1 where you can use the radio buttons to indicate the source of reported CO₂ quantities associated with this product.

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If you elect to enter your own result, enter the CO₂ quantity associated with this product (in metric tons) in the space provided then click NEXT. If you choose to use Cal e-GGRT to calculate the result for you, simply click NEXT without entering a value.

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In the spaces provided, enter the total annual volume of this product supplied (in barrels) and the number of days during the reporting year for which substitute data procedures were used to determine this value.

Use the drop-down menu to select the industry standard used to measure the volume.
When finished, click NEXT.

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Use the radio buttons to indicate your source for the higher heating value and CO₂ emissions factor.

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Step 3.2 - Equation NN-2 Summary and Results

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If you selected Methodology 2 in Step 1, Cal e-GGRT will guide you to the page containing Subpart NN Eq. NN-2 where you can use the radio buttons to indicate the source of the potential CO₂ quantity associated with this product.

If you elect to enter your own result, enter the CO₂ quantity associated with this product (in metric tons) in the space provided then click NEXT. If you choose to use eGGRT to calculate the result for you, simply click NEXT without entering a value.

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In the spaces provided, enter the total annual volume of this product supplied (in barrels) and the number of days during the reporting year for which substitute data procedures were used to determine this value.

Use the drop-down menu to select the industry standard used to measure the volume.
When finished, click NEXT.

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Use the radio buttons to indicate your source for the HHV and CO₂ emissions factor.

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Step 4 - Addition Information Required for NGL Fractionators and LPG Consignees

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For NGL Fractionators and LPG Consignees, Subpart NN requires you to report the following additional data:

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Find the MISCELLANEOUS INFORMATION FOR NGL FRACTIONATORS table and click OPEN

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Enter the annual volume (in thousand standard cubic feet) of Natural Gas received for processing, annual quantity (in barrels) of y-grade bulk NGLs received from others for fractionation, annual quantity (in barrels) of Propane odorized at the facility and delivered to others, and annual production of natural gas liquids.

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