This document was  developed for  the Proposed Mandatory GHG  Reporting Rule.
For the  final document,  please visit  the final  Mandatory Reporting  of
Greenhouse Gases  Rule.
Ferroalloy Production
                                                                                   United Slates
Proposed Rule: Mandatory Reporting of Greenhouse Gases                         Environmental Protection


Under the proposed Mandatory Reporting of Greenhouse Gases (GHGs) rule, owners or
operators of facilities that contain ferroalloy production processes (as defined below) and that
emit 25,000 metric tons of GHGs per year or more (expressed as carbon dioxide equivalents)
from stationary combustion, miscellaneous use of carbonates, and other source categories (see
information sheet on General Provisions) would report emissions from ferroalloy production
processes and any other source categories located at the facility for which emission calculation
methods are defined in the rule. Owners or operators would collect emission data; calculate
GHG emissions; and follow the specified procedures for quality assurance, missing data,
recordkeeping, and reporting.

How Is This Source Category Defined?

Under the proposal, the ferroalloy production source category consists of any facility that uses
pyrometallurgical techniques to produce any of the following metals: ferrochromium, ferromanganese,
ferromolybdenum, ferronickel, ferrosilicon, ferrotitanium, ferrotungsten, ferrovanadium,
silicomanganese, or silicon metal.

What GHGs Would Be Reported?

The proposal calls for ferroalloy production facilities to report the following emissions:
    •    Carbon dioxide (CO2) emissions from each electric arc furnace (EAF) used for ferroalloy
        production.
    •    Methane (CH4) emissions from each EAF used for the production of silicon metal, ferrosilicon 65
        percent, ferrosilicon 75 percent, or ferrosilicon 90 percent.

In addition, each facility would report GHG emissions for other source categories for which there are
methods provided in the rule. For example, facilities would report CO2, nitrous oxide (N2O), and methane
(CFL^ emissions from each stationary combustion unit on site by following the requirements of 40 CFR
part 98, subpart C (General Stationary Fuel Combustion Sources). Please refer to the relevant information
sheet for a summary of the proposal for calculating and reporting emissions from any other source
categories at the facility.

How Would GHG Emissions Be Calculated?

For CO2 emissions, the proposal calls for facilities to use one of two methods, as appropriate:
    •    EAFs with certain types of continuous emissions monitors (CEMS) in place would report using
        the CEMS and follow the methodology of 40 CFR part 98, subpart C to report total CO2
        emissions from calcination and fuel combustion. At other EAFs, the use of CEMS would be
        optional.
    •    Facilities without CEMS would calculate CO2 emissions monthly using a mass balance equation
        that considers the measured quantity and carbon content of each carbon containing input (ore,
March 2009                                  1                             EPA-430-F-09-034

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This document  was developed for the  Proposed Mandatory GHG Reporting  Rule.
For  the  final  document, please  visit the  final  Mandatory  Reporting  of
Greenhouse Gases Rule.

       carbon electrodes, flux, and reducing agents) and output material (product and nonproduct
       materials) for each EAF. The owner or operator would use carbon content data provided by the
       material supplier or by annual analyses of representative samples of the materials by an
       independent certified laboratory. The mass of each material would be either measured directly or
       calculated using process information.

For CFi4 emissions, the owner or operator would use the annual mass of alloy produced and a default
emission factor.

What Information Would Be Reported?

In addition to the information required by the General Provisions at 40 CFR 98.3(c), the proposal calls for
each ferroalloy production facility to report the following information:

   •  Annual CO2 emissions for each EAF used to produce ferroalloys.
   •  Annual CFI4 emissions from each EAF used in the production of silicon metal, ferrosilicon 65
       percent, ferrosilicon 75 percent, or ferrosilicon  90 percent.
   •  Ferroalloy product production capacity of the facility.
   •  Annual facility production quantity for each ferroalloy product.
   •  Annual operating hours.

If the carbon-balance calculation method is used to calculate CO2 emissions, the owner or operator would
report the annual quantity and average carbon  content of each carbon-containing input or output from the
furnaces.

Facilities that use CEMS would also report the data specified in 40 CFR 98.34(d)  of subpart C (General
Stationary Fuel Combustion Sources).

For More Information

This  series of information sheets is intended to assist reporting facilities/owners in understanding key
provisions of the proposed rule. However, these information sheets are not intended to be a substitution
for the rule. Visit EPA's Web site (www.epa.gov/climatechange/emissions/ghgrulemaking.html) for more
information, including the proposed preamble  and rule and additional information sheets on specific
industries, or go to  to access the rulemaking docket (EPA-HQ OAR-2008-0508).
For questions that cannot be answered through the Web site or docket, call 1-877-GHG-l 188.
March 2009                                    2                              EPA-430-F-09-034

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