Equation NN-5

Step A5 - Equation NN-5 Summary and Results

On the Subpart NN Equation NN-5 overview page, use the radio buttons to indicate the source of reported CO₂ quantity from the net change in the quantity of natural gas stored and the quantity of natural gas received from local production by the LDC within the reporting year.

If you elect to enter your own result, select the radio button "Enter my own result," enter the potential CO₂ quantity associated with this quantity of natural gas (in metric tons) in the space provided, and then click NEXT to advance to the next screen. If you choose to use eGGRT to calculate the result for you, make sure the radio button "Use my own result rounded" is selected and click NEXT.

In the spaces provided, enter the total annual volume of natural gas received at the city gate and stored on-system or liquefied and stored (in thousand standard cubic feet) and the number of days during the reporting year for which substitute data procedures were used to determine this quantity. If you did not place any natural gas into storage during the reporting year, enter "0" for each parameter in the spaces provided.

When finished, click NEXT. 

 Enter the following information in the spaces provided:

• 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• The annual volume of natural gas withdrawn from on-system storage (that is not delivered to the city gate) for delivery on the distribution system (in thousand standard cubic feet).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.

Enter "0" for both the volume and number of days substitute data procedures were used for any parameters not relevant to your LDC in the space provided.

When finished, click NEXT.

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

If you elect not to use the default value, enter your own CO₂ emissions factor (in metric tons CO₂ per thousand standard cubic feet) and the number of days during the reporting year that substitute data procedures were used to determine this value in the space provided.

Then use the drop-down menu to select the industry standard used to measure the volume. If you select "Other" from the drop-down menu, enter the name or a short description of the method you used.

When finished, click NEXT.