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The GHG information required for LDCs includes six steps:
- #Step Step A1 - Calculation Methodology
- Step A2:
- #Step Step A3 - Equation NN-3 Summary and Results
- #Step Step A4 - Equation NN-4 Summary and Results
- #Step Step A5 - Equation NN-5 Summary and Results
- #Step Step A6 - Equation NN-6 Summary and Results
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Your selection of a calculation methodology in Step A1 will determine whether e-GRRT uses Step A2.1 or Step A2.2 to calculate CO2 CO2 quantities from natural gas received at city gate station(s).
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e-GGRT will guide you to the Equation NN-1 overview page where you can use the radio buttons to indicate the source of reported GHG quantities associated with natural gas received at your city gate stations. You can either use the calculated result, or choose to enter your own result.
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e-GGRT will guide you to the Equation NN-2 overview page where you can use the radio buttons to indicate the source of reported GHG quantities associated with natural gas received at your city gate stations. You can either use the calculated result, or choose to enter your own result.
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On the Subpart NN Equation NN-3 overview page, use the radio buttons to indicate the source of reported CO2 quantities from product natural gas delivered to downstream transmission pipelines or other LDCs.
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On the Subpart NN Equation NN-4 overview page, use the radio buttons to indicate the source of reported GHG quantities from natural gas received by delivered to end-users that receive a supply greater than or equal to 460,000 thousand standard cubic feet per year.
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On the Subpart NN Equation NN-5 overview page, use the radio buttons to indicate the source of reported CO2 quantities from the net product quantity of natural gas that is liquefied and/or stored/removed from storage and received from local production by the LDC within the reporting year.
If you elect to enter your own result, enter your CO2 quantity from the net product quantity of natural gas that is liquefied and/or stored/removed from storage and received from local production by the LDC within the reporting year (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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- The annual volume of vaporized liquefied natural gas produced at on-system vaporization facilities for delivery on the distribution system (in thousand standard cubic feet).
- The annual volume of natural gas withdrawn from on-system storage (that is not delivered to the city gate) for delivery on the distribution system (in thousand standard cubic feet).
- The annual volume of natural gas delivered directly to the LDC systems from producers or natural gas processing plants from local production (in thousand standard cubic feet).
- The number of days in the reporting year for which substitute data procedures were used for each of the three volumes.
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e-GGRT will use the calculated results from Equations NN-1 or NN-2, NN-3, NN-4, and NN-5 in Equation NN-6 to calculate the CO2 quantities quantity associated with the combustion or oxidation of natural gas supplied to end-users that receive less than 460,000 thousand standard cubic feet (mscf) per year.
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