Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:8:p2
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 8 (pt 2/3)
Character Range: 357643–360120

method 2 is used for a facility, all other available methods 2 must be used in Divisions 3.3.6A, 3.3.6C, 3.3.6E, 3.3.7A and 3.3.7B if those Divisions are applicable to the facility.
 (4) If method 3 is used for a facility all other available methods 3 must be used in Divisions 3.3.6A, 3.3.6C, 3.3.6E, 3.3.7A and 3.3.7B if those Divisions are applicable to the facility.

3.73F  Method 1—offshore natural gas production (other than emissions that are vented or flared)
 (1) Method 1 is:

  Eij = ∑k (Qik ×EFijk) × Sij/SDij

where:
Eij is the fugitive emissions (other than emissions that are vented or flared) of gas type (j), being methane or carbon dioxide, from the offshore natural gas production during the year measured in CO2‑e tonnes.
Σk is the total emissions of gas type (j), being methane or carbon dioxide, measured in CO2‑e tonnes and estimated by summing up the emissions released from each equipment type (k) specified in column 2 of an item in the table in subsection (2), if the equipment is used in the offshore natural gas production.
Qik is the number of platforms of each equipment type (k) specified in column 2 of the table in subsection (2), during the year.
EFijk is the emission factor for gas type (j) measured in CO2‑e tonnes per platform during the year as determined under subsection (2), if the equipment is used in the offshore natural gas production.
Note: Consistent with subsection 3.41(2), emissions associated with any piece of equipment included in this definition should not be counted under this section if those emissions are also counted as equipment emissions under another section within this Part.
Sij  is the measured share of gas type (j), being methane or carbon dioxide, in the unprocessed gas (i), by volume, measured in accordance with Division 2.3.3 and the principles in section 1.13.
SDij is the default share of gas type (j) in the unprocessed gas (i) where methane SD is 0.832 and carbon dioxide SD is 0.035.
 (2) For EFijk in subsection (1), column 3 of an item in the following table specifies the emission factor for methane (j) for an equipment type (k) specified in column 2 of that item and column 4 of an item in the following table specifies the emission factor for carbon dioxide (j) for an equipment type (k) specified in column 2 of that item:
Item  Equipment type (k)                  emission factor for gas type  (j)

                                          CH4                                 CO2   Units