Overview

This help page provides guidance for working with the supplemental Subpart N spreadsheet tools. The guidance provides step-by-step instructions for the following tasks:

• Downloading the Calculation Spreadsheet
• General Information on Using a Calculation Spreadsheet
• Using the N-1 Calculation Spreadsheet

Downloading the Calculation Spreadsheet

The calculation spreadsheet for Subpart N may be downloaded by clicking the link in the first column of the table below. Users may also jump to instructions for the Calculation Worksheet by clicking the link in the second column.

General Information on Using a Calculation Spreadsheet

The guidance provided in this section applies to calculation spreadsheets for all subparts. Additional guidance specific to Subpart N is provided in the following section.

Using the N-1 Calculation Spreadsheet

Use the N-1 Calculation Spreadsheet to calculate the annual CO₂ emissions from a continuous glass melting furnace. A separate spreadsheet is to be used for each furnace. Users should not use aggregated data from multiple furnaces in a single calculation spreadsheet. The N-1 Calculation Spreadsheet performs the calculation using Equation N-1, provided below.

Begin by entering the facility name, your name, the glass furnace name or identifier, the reporting period, and any additional comments in the green input cells of the General Information table located immediately below the equation in the Calculation Worksheet. This is for your records.

Next, enter the requested information in the green input cells of the table titled N-1 Input Data.

The calculation spreadsheet will then calculate the annual CO₂ emissions from this continuous glass melting furnace. The calculated value will be displayed in the red-bordered cell in the N-1 Results table at the bottom of the spreadsheet. This value should be entered in e-GGRT for this furnace.

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