Optional Calculation Spreadsheet Instructions

These optional spreadsheets are provided to assist reporters in calculating emissions and in keeping records of these calculations.

Reporters are required to keep records of these calculations under 40 CFR 98.3(g) and additional subpart-specific provisions, but are not required to use these spreadsheets or to submit any spreadsheets to EPA.

Please refer to the Calculation Spreadsheet Archive to review obsolete calculation spreadsheets.

EPA is providing OPTIONAL calculation spreadsheets that you can use to perform the calculations called for in the emission equations. These Microsoft Excel spreadsheets can be downloaded and opened on your own computer. Just click the hyperlink on the web-form to view and download the appropriate calculation spreadsheet for the equation you are working on. You can enter the data, including equation inputs, necessary to perform the calculation for the equation, and the spreadsheets will calculate the result for you. Once you have calculated the result, enter the result onto the e-GGRT web form.

E-GGRT will NOT collect the calculation spreadsheets and you do NOT need to submit them outside of e-GGRT. The use of these calculation spreadsheets is voluntary. The spreadsheets are meant to support reporters as they complete the e-GGRT online reporting process. You do not need to use EPA’s spreadsheets to perform the calculations for the emissions equations, but you do need to keep records of these calculations (under 40 CFR 98 3(g) and additional subpart-specific provisions) whether or not you use the calculation spreadsheets provided by EPA. If you do use the spreadsheets, you may choose to maintain copies to help meet your record-keeping requirements.

Calculation spreadsheets include no rounding of results. All calculations in these spreadsheets are conducted using double decimal precision, as native in MS Excel.  The resultant values are presented on the spreadsheet in 7 decimals of precision. Users may copy the results from spreadsheets into e-GGRT manually or by using a copy and paste command.


Subpart

Calculation Spreadsheets
(click to download)





C - Combustion

Equation C-1, C-8 Calculation Spreadsheet.xls

Equation C-1a, C-8a Calculation Spreadsheet.xls

Equation C-1b, C-8b Calculation Spreadsheet.xls

Equation C-2a, C-2b, C-9a Calculation Spreadsheet.xls

Equation C-2c, C-9b Calculation Spreadsheet.xls

Equation C-3, C-8 Calculation Spreadsheet.xls

Equation C-4, C-8 Calculation Spreadsheet.xls

Equation C-5, C-8 Calculation Spreadsheet.xls

Equation C-10 Calculation Spreadsheet.xls



E - Adipic Acid

Equation E-2 Calculation Spreadsheet.xls

Equation E-3a Calculation Spreadsheet.xls

Equation E-3b Calculation Spreadsheet.xls

Equation E-3c Calculation Spreadsheet.xls


G - Ammonia

Equation G-1 Calculation Spreadsheet.xls

Equation G-2 Calculation Spreadsheet.xls

Equation G-3 Calculation Spreadsheet.xls

I - Electronics Manufacturing

Subpart I Calculation Tool for RY2014 and beyond.xlsx


H - Cement Production

Equation H-1 Calculation Spreadsheet.xls

Equation H-2, H-3, H-4 Calculation Spreadsheet.xls

Equation H-5 Calculation Spreadsheet.xls

K - Ferroalloy Production

Equation K-1, K-3 Calculation Spreadsheet.xls

L - Flourinated Gas Production

Subpart L Calculation Spreadsheets - Emission Factor Equations.xls

Subpart L Calculation Spreadsheets - Mass Balance Equations.xls

Subpart L Calculation Spreadsheet - Summarize Process Level CO2e by f-GHG.xls

N - Glass Production

Equation N-1 Calculation Spreadsheet.xls


P - Hydrogen Production

Equation P-1 Calculation Spreadsheet.xls

Equation P-2 Calculation Spreadsheet.xls

Equation P-3 Calculation Spreadsheet.xls

Sum of Equation P-1, P-2, P-3 Calculation Spreadsheet.xls





Q - Iron and Steel


Equation Q-1 Calculation Spreadsheet.xls

Equation Q-2 Calculation Spreadsheet.xls

Equation Q-3 Calculation Spreadsheet.xls

Equation Q-4 Calculation Spreadsheet.xls

Equation Q-5 Calculation Spreadsheet.xls

Equation Q-6 Calculation Spreadsheet.xls

Equation Q-7 Calculation Spreadsheet.xls

Equation Q-8 EF Approach Calculation Spreadsheet.xls



S - Lime Manufacturing

Equation S-1 Calculation Spreadsheet.xls

Equation S-2 Calculation Spreadsheet.xls

Equation S-3 Calculation Spreadsheet.xls

Equation S-4 Calculation Spreadsheet.xls

T - Magnesium Production

Equation T-1 Calculation Spreadsheet.xls

Equation T-2 ,T-3 Calculation Spreadsheet.xls

U - Carbonate


Equation U-1 Calculation Spreadsheet.xls

Equation U-2 Calculation Spreadsheet.xls



V - Nitric Acid


Equation V-2 Calculation Spreadsheet.xls

Equation V-3a Calculation Spreadsheet.xls

Equation V-3b Calculation Spreadsheet.xls

Equation V-3c Calculation Spreadsheet.xls


W - Petroleum and Nat. Gas

Subpart W All Onshore Equations Calculation Spreadsheet for RY11 and RY12

Subpart W All Onshore Equations Calculation Spreadsheet for RY13 and RY14

Subpart W All Onshore Equations Calculation Spreadsheet for RY16

Subpart W All Onshore Equations Calculation Spreadsheet for RY17 to RY23 (Updated February 2023)

Subpart W Calculation Tool for RY24_v4.xlsx (Updated 2/18/2025)

     Changes to RY24 Subpart W Calculation Tool for RY24 v4 compared to v1

    • Introduction: Corrected error in the applicability cells for the Flare Stacks source for the onshore natural gas transmission compression, underground natural gas storage, LNG storage, and LNG import and export equipment industry segments
    • Pneumatic Devices: Corrected issues with Calculation Method 2 where Tt was being improperly factored in the volumetric calculations and updated the column headings
    • Pneumatic Pumps: Unlocked the C31 and D31 entry cells that were preventing entry
    • Centrifugal and Reciprocating Compressors: Corrected a calculation error in the table for Production and G&B facilities that do NOT use volumetric measurements where all rows of volume calculation were referring to only the first row of input data
    • Centrifugal and Reciprocating Compressors: Updated column headings for time and GHG concentrations to include default values
    • Centrifugal and Reciprocating Compressors: Added a column to the table for Production and G&B facilities that do NOT use volumetric measurements allowing for entering a count of compressors that use the same conditions to ease data entry and modified the calculations to suit
    • Equipment Leaks (Leaks-1): Corrected logic errors in the Equation W-30 calculations that would always result in 0s

Subpart W Offshore Equations Calculation Spreadsheet for RY11 and RY12

Subpart W Offshore Equations Calculation Spreadsheet for RY13 and RY14
Subpart W Offshore Equations Calculation Spreadsheet for RY15 and Later



X - Petrochemical Production


Equation X-1 Calculation Spreadsheet.xls

Equation X-2 Calculation Spreadsheet.xls

Equation X-3 Calculation Spreadshee.xls

Equation X-4 Calculation Spreadsheet.xls












Y - Petroleum Refineries


Equation Y-1a Calculation Spreadsheet.xls

Equation Y-1b Calculation Spreadsheet.xls

Equation Y-2 Calculation Spreadsheet.xls

Equation Y-3 Calculation Spreadsheet.xls

Equation Y-4, Y-5 Calculation Spreadsheet3.xls

Equation Y-6, Y-7a, Y-7b Calculation Spreadsheet.xls

Equation Y-8 Calculation Spreadsheet.xls

Equation Y-9, Y-10 Calculation Spreadsheet.xls

Equation Y-11 Calculation Spreadsheet.xls

Equation Y-12 Calculation Spreadsheet.xls

Equation Y-13 Calculation Spreadsheet.xls

Equation Y-14, Y-15 Calculation Spreadsheet.xls

Equation Y-16a, Y-16b, Y-17 Calculation Spreadsheet.xls

Equation Y-18 Calculation Spreadsheet.xls

  (applicable to RY2017 and prior years)

Equation Y-19 Calculation Spreadsheet.xls

Equation Y-20 Calculation Spreadsheet.xls

Equation Y-21 Calculation Spreadsheet.xls

Equation Y-22 Calculation Spreadsheet.xls

Equation Y-23 Calculation Spreadsheet.xls

Z - Phosphoric Acid

Equation Z-1a, Z-1b Calculation Spreadsheet.xls


AA - Pulp and Paper

Equation AA-1 Calculation Spreadsheet.xls

Equation AA-2 Calculation Spreadsheet.xls

Equation AA-3 Calculation Spreadsheet.xls

BB - Silicon Carbide

Equation BB-1, BB-2 Calculation Spreadsheet.xls

CC - Soda Ash

Equation CC-3, CC-4, CC-5 Calculation Spreadsheet.xls

EE - Titanium Dioxide

Equation EE-2 Calculation Spreadsheet.xls

Equation EE-3 Calculation Spreadsheet.xls



HH - Landfills

Equation HH-1 Calculation Spreadsheet.xls

Equation HH-4 Calculation Spreadsheet.xls

Equation HH-5 Calculation Spreadsheet.xls
Equation HH-6 HH-7 HH-8 Calculation Spreadsheet Revised 2021.xls
Methane Flux Calculation Spreadsheet.xls

II - Industrial Wastewater Treatment

Equation II-4 Calculation Spreadsheet.xls

NN - Suppliers of Natural Gas and Natural Gas LiquidsEIA 176 and Subpart NN Crosswalk.xlsx

SS - Electrical Equipment Manufacturer or Refurbishment


Equation SS-2 Calculation Spreadsheet.xls

Equation SS-3 SS-4 Calculation Spreadsheet.xls



TT - Industrial Landfills

Equation TT-1 Calculation Spreadsheet.xls

Equation TT- 6 Calculation Spreadsheet.xls

Equation HH-4 Calculation Spreadsheet.xls

Equation HH-6 HH-7 HH-8 Calculation Spreadsheet.xls
Methane Flux Calculation Spreadsheet.xls

This web site is maintained by a contractor to the U.S. Environmental Protection Agency (RY2024.R.01)