This section of the reporting instructions specifies the requirements for reporting emissions information that is aggregated at the configuration-level. Configuration-level emissions will include the emissions from all fuels combusted in a given configuration. Users are required to report both configuration-level and fuel-specific information for all configuration types. As with the identification information, each configuration has unique reporting requirements for emissions information.

The text below describes how to enter subpart C General Stationary Fuel Combustion Sources configuration-level emissions information. The process to edit an existing configuration type is essentially similar.

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Starting on the Subpart C Overview page, find the configuration type for which you would like to enter emissions information in the CONFIGURATION SUMMARY table and click OPEN.

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To edit a specific configuration, click the “Edit this Configuration Information" link above the CONFIGURATION-LEVEL EMISSIONS INFORMATION table.

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Use the text boxes and drop-down menus to update the entered information.

When finished, click SAVE.

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To enter emissions information for this configuration, find the CONFIGURATION EMISSIONS INFORMATION table and click EMISSIONS.

The data entry screen will vary depending on the configuration type.

Configuration Types 1, 3 and 4

Note: Configuration Type 1 pictured.

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For configurations of Type 1 (single unit using Tiers 1, 2, or 3), subpart C requires the following additional information aggregated at the configuration-level:

• The total annual biogenic CO₂ mass emissions. This includes both CO₂ emissions from the combustion of biomass fuels and the biogenic portion of CO₂ emissions from fuels with a mixed biogenic and fossil component [98.36(b)(8)(ii)]
• The total annual CO₂ mass emissions from sorbent [98.36(b)(10)]

For configurations of Type 3 (aggregation of units), subpart C requires the following additional information aggregated at the configuration-level:

• The total annual biogenic CO₂ mass emissions. This includes both CO₂ emissions from the combustion of biomass fuels and the biogenic portion of CO₂ emissions from fuels with a mixed biogenic and fossil component [98.36(c)(1)(vi)]
• The total annual CO₂ mass emissions from the combustion of fossil fuels. This includes both CO₂ emissions from all fossil fuels and the fossil portion of CO₂ emissions from fuels with a mixed biogenic and fossil component [98.36(c)(1)(vi)]
• The total annual CO₂ mass emissions from sorbent [98.36(c)(1)(x)]

For configurations of Type 4 (non-CEMS group of units sharing common fuel supply pipe), subpart C requires the following additional information aggregated at the configuration-level:

• The total annual biogenic CO₂ mass emissions. This includes both CO₂ emissions from the combustion of biomass fuels and the biogenic portion of CO₂ emissions from fuels with a mixed biogenic and fossil component [98.36(c)(3)(vi)]
• The total annual CO₂ mass emissions from the combustion of fossil fuels. This includes both CO₂ emissions from all fossil fuels and the fossil portion of CO₂ emissions from fuels with a mixed biogenic and fossil component [98.36(c)(3)(vi)]

Use the text boxes to enter the required information for your configuration type.

When finished, click SAVE.

Configuration Types 2 and 5

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For configurations of Type 2 (single unit using Tier 4) and Type 5 (monitored common stack or duct configurations), subpart C requires the following additional information aggregated at the configuration-level:

• The cumulative CO₂ mass emissions for each quarter during the reporting year. The cumulative value is the sum of hourly emissions for the respective quarter only (for example, for the fourth quarter, the emissions will be summed for the fourth quarter only, not from all four quarters in the year). This value will include both biogenic and non-biogenic emissions [98.36(e)(2)(vi)(B)]
• The total annual biogenic CO₂ mass emissions. This includes both CO₂ emissions from the combustion of biomass fuels and the biogenic portion of CO₂ emissions from fuels with a mixed biogenic and fossil component [98.36(b)(9)(ii), 98.36(c)(2)(viii)]
• The total annual non-biogenic CO₂ mass emissions (i.e. CO₂ mass emissions from fossil fuels, sorbent use, and process emissions) [98.36(b)(9)(ii), 98.36(c)(2)(viii)]
• The total annual CO₂ mass emissions measured by the CEMS. This will include both biogenic and non-biogenic emissions [98.36(b)(9)(1)-(ii), 98.36(c)(2)(viii)]
• An indication (check box) if emissions reported for the CEMS include emissions calculated according to 98.33(a)(4)(viii) for a slipstream that bypassed the CEMS [98.33(a)(4)(viii)]
• The total number of source operating hours in the reporting year [98.36(e)(2)(vi)(A)]
• The total operating hours in which a substitute data value was used in the emissions calculations for the CO₂ concentration parameter (if an O2 monitor is used to calculate CO₂ concentration, report missing data for the O2 monitor here) [98.36(e)(2)(vi)(C), 98.3(c)(8)]
• The total operating hours in which a substitute data value was used in the emissions calculations for the stack gas flow rate parameter [98.36(e)(2)(vi)(C), 98.3(c)(8)]
• The total operating hours in which a substitute data value was used in the emissions calculations for the stack gas moisture content parameter (if moisture correction is required and a continuous moisture monitor is used) [98.36(e)(2)(vi)(C), 98.3(c)(8)]
• An indication (check box) of whether biogenic CO₂ mass emissions were estimated using the methodology described by Equations C-12, C-13, and C-14 (See section 98.33(e)(2))

If biogenic CO₂ emissions were estimated using the methodology described by Equations C-12, C-13, and C-14, the following additional information is required by subpart C for configurations of Type 2:

• The total annual volume of CO₂ emitted from the combustion of all fuels [98.36(e)(2)(ix)(A)]
• The total annual volume of CO₂ emitted from the combustion of all fossil fuels [98.36(e)(2)(ix)(B)]
• The total annual volume of CO₂ emitted from the combustion of all biomass fuels [98.36(e)(2)(ix)(C)]
• The total annual biogenic CO₂ mass emissions calculated using the procedures in 98.33(e)(2) [98.36(e)(2)(ix)(G)]

Use the text boxes and check box to enter the required information for your configuration type.

When finished, click SAVE.

Configuration Type 6 (year-round Part 75 heat input reporters)

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For configurations of Type 6 (year-round Part 75 heat input reporters), subpart C requires the following additional information aggregated at the configuration-level:

• The total annual biogenic CO₂ mass emissions. This includes both CO₂ emissions from the combustion of biomass fuels and the biogenic portion of CO₂ emissions from fuels with a mixed biogenic and fossil component [98.36(d)(2)(ii)(I), 98.36(d)(2)(iii)(I)]
  • Report zero for this value if the facility elects to use the option specified in 98.3(c)(12) for the 2010 reporting year (where the facility chooses not to separately report biogenic emissions from part 75 units)
• The total annual CO₂ emissions at the monitored location, as calculated by the applicable part 75 methodology. Include both biogenic and non-biogenic CO₂ in this value. [98.36(d)(2)(ii)(F), 98.36(d)(2)(iii)(F)]
• If CO₂ calculation methodology used was CEMS, the following additional elements are required:
  • The total number of source operating hours in the reporting year that the CO₂ concentration parameter was missing (if an O2 monitor is used to calculate CO₂ concentration, report missing data for the O2 monitor here) [98.3(c)(8)]
  • The total number of source operating hours in the reporting year that the stack gas flow rate parameter was missing [98.3(c)(8)]
  • The total number of source operating hours in the reporting year that the moisture content parameter was missing (if a continuous monitor is in use) [98.3(c)(8)]
• If CO₂ calculation methodology used was the Appendix D and G calculation method, the following additional elements are required:
  • Total number of operating hours during the year that fuel flow rate data was missing [98.3(c)(8)]
  • Total number of operating hours during the year that high heating value data was missing [98.3(c)(8)]

Use the text boxes to enter the required information for your configuration type.

When finished, click SAVE.

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See Also

Screen Errors
Using Cal e-GGRT to Prepare Your Subpart C Report
Subpart C Configurations
Subpart C Fuel Identification Information
Subpart C Fuel-Level Emissions Information
Subpart Validation Report