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Suggested Amendments in Red to EPA’s GHG Co-Proposal Regulatory Text
Part 60 Subpart Da
[Note: Existing 60.41Da Definitions includes:
Combined heat and power, also known as “cogeneration,” means a steamgenerating unit that simultaneously produces both electric (and mechanical) and
useful thermal energy from the same primary energy source.]
§ 60.46Da Standards for carbon dioxide (CO2)
(a) Your affected facility is subject to this section if construction commenced after
[DATE OF PUBLICATION IN THE FEDERAL REGISTER], and the affected facility
meets the conditions specified in paragraphs (a)(1) and (a)(2) of this section, except as
specified in paragraph (b) of this section.
(1) The affected facility combusts fossil fuel for more than 10.0 percent of the heat input
during any 3 consecutive calendar years.
(2) The affected facility supplies more than one-third of its potential electric output and
more than 219,000 MWh net-electric output to a utility power distribution system for sale
on an annual basis.
(b) The following EGUs are not subject to this section:
(1) The proposed Wolverine EGU project described in Permit to Install No. 317-07
issued by the Michigan Department of Environmental Quality, Air Quality Division,
effective June 29, 2011 (as revised July 12, 2011).
(2) The proposed Washington County EGU project described in Air Quality Permit No.
4911-303-0051-P-01-0 issued by the Georgia Department of Natural Resources,
Environmental Protection Division, Air Protection Branch, effective April 8, 2010,
provided that construction had not commenced for NSPS purposes as of [DATE OF
PUBLICATION IN THE FEDERAL REGISTER].
(3) The proposed Holcomb EGU project described in Air Emission Source Construction
Permit 0550023 issued by the Kansas Department of Health and Environment, Division
of Environment, effective December 16, 2010, provided that construction had not
commenced for NSPS purposes as of [DATE OF PUBLICATION IN THE FEDERAL
REGISTER].
(4) Your affected facility is a combined heat and power unit [subject to subpart Da of this
part] [as defined in § 60.41Da of this part]
(p1502)
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T = Electric Transmission and Distribution Factor.
T = 0.95 for a CHP stationary combustion turbine where at least on an annual basis 20.0
percent of the total gross energy output consists of electric or direct mechanical output
and 20.0 percent of the total gross energy output consists of useful thermal energy output
on a rolling 3 year basis. (p1504)
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Gross energy output means:
(ii) For electric utility steam generating unit combined heat and power facilities where at
least 20.0 percent of the total gross energy output consists of electric or direct mechanical
output and at least 20.0 percent of the total gross energy output consists of thermal output
on a rolling 3 year basis, the gross electric or mechanical output from the affected facility
(including, but not limited to, output from steam turbine(s), combustion turbine(s), and
gas expanders) minus any electricity used to power the feedwater pumps, that difference
divided by 0.95, plus 75 percent of the useful thermal output measured relative to ISO
conditions that is not used to generate additional electric or mechanical output or to
enhance the performance of the unit (e.g., steam delivered to an industrial process for a
heating application); (p1505)
(iv) For IGCC electric utility generating unit combined heat and power facilities where at
least 20.0 percent of the total gross energy output consists of electric or direct mechanical
output and at least 20.0 percent of the total gross energy output consists of thermal output
on a rolling 3 year basis, the gross electric or mechanical output from the affected facility
(including, but not limited to, output from steam turbine(s), combustion turbine(s), and
gas expanders) divided by 0.95, plus 75 percent of the useful thermal output measured
relative to ISO conditions that is not used to generate additional electric or mechanical
output or to enhance the performance of the unit (e.g., steam delivered to an industrial
process for a heating application); (p1505)
Net-electric output means:
(i) Except as provided under paragraph (ii) of this definition, the gross electric sales to the
utility power distribution system minus purchased power on a calendar year basis, or
(ii) For combined heat and power facilities where at least 20.0 percent of the total gross
energy output consists of electric or direct mechanical output and at least 20.0 percent of
the total gross energy output consists of thermal output, the gross electric sales to the
utility power distribution system minus purchased power of the thermal host facility or
facilities on a calendar year basis. (p1506)
Subpart TTTT – Standards of Performance for GHG Emissions for EGUs
§ 60.5509 Am I subject to this subpart?
(a) Except as provided for in paragraph (b) of this section, the subpart applies to any
steam generating unit, IGCC, or stationary combustion turbine that commences
construction after [DATE OF PUBLICATION IN THE FEDERAL REGISTER] that
meets the relevant applicability conditions in paragraphs (a)(1) and (a)(2) of this section.
(1) A steam generating unit or IGCC that has a design heat input greater than 73 MW
(250MMBtu/h) heat input of fossil fuel (either alone or in combination with any other
fuel), combusts fossil fuel for more than 10.0 percent of the average annual heat input
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during a 3 year rolling average basis, and was constructed for the purpose of supplying,
and supplies, one-third or more of its potential electric output and more than 219,000
MWh net-electric output to a utility distribution system on an annual basis.
(2) A stationary combustion turbine that has a design heat input to the turbine engine
greater than 73 MW (250 MMBtu/h), combusts fossil fuel for more than 10.0 percent of
the average annual heat input during a 3 year rolling average basis, combusts over 90%
natural gas on a heat input basis on a 3 year rolling average basis, and was constructed for
the purpose of supplying, and supplies, one-third or more of its potential electric output
and more than 219,000 MWh net-electrical output to a utility distribution system on a 3
year rolling average basis.
(b) You are not subject to the requirements of this subpart if your affected facility meets
any one of the conditions specified in paragraphs (b)(1) through (b)(6) of this section.
(1) The proposed Wolverine EGU project described in Permit to Install No. 317-07
issued by the Michigan Department of Environmental Quality, Air Quality Division,
effective June 29, 2011 (as revised July 12, 2011).
(2) The proposed Washington County EGU project described in Air Quality Permit No.
4911-303-0051-P-01-0 issued by the Georgia Department of Natural Resources,
Environmental Protection Division, Air Protection Branch, effective April 8, 2010,
provided that construction had not commenced for NSPS purposes as of [DATE OF
PUBLICATION IN THE FEDERAL REGISTER].
(3) The proposed Holcomb EGU project described in Air Emission Source Construction
Permit 0550023 issued by the Kansas Department of Health and Environment, Division
of Environment, effective December 16, 2010, provided that construction had not
commenced for NSPS purposes as of [DATE OF PUBLICATION IN THE FEDERAL
REGISTER].
(4) Your affected facility is a municipal waste combustor unit that is subject to subpart
Eb of this part.
(5) Your affected facility is a commercial or industrial solid waste incineration unit that
is subject to subpart CCCC of this part.
(6) Your affected facility is a combined heat and power unit that is subject to subpart Da
of this part (p1511)
Combined heat and power facility or CHP facility, (also known as “cogeneration”) means
an electric generating unit that that use a steam-generating unit or stationary combustion
turbine to simultaneously produce both electric (or mechanical) and useful thermal
energy from the same primary energy source. (p1515)
(3) For combined heat and power facilities where at least 20.0 percent of the total gross
energy output consists of electric or direct mechanical output and 20.0 percent of the total
gross energy output consists of thermal output on a rolling 3 year basis, the gross electric
or mechanical output from the affected facility (including, but not limited to, output from
steam turbine(s), combustion turbine(s), and gas expander(s)) minus any electricity used
to power the feedwater pumps (the electric auxiliary load of boiler feedwater pumps is
not applicable to IGCC facilities), that difference divided by 0.95, plus 75 percent of the
useful thermal output measured relative to ISO conditions that is not used to generate
additional electric or mechanical output or to enhance the performance of the unit (e.g.,
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steam delivered to an industrial process for a heating application). (p1515)
(d) You must install, calibrate, maintain, and operate a sufficient number of watt meters
to continuously measure and record the gross electric output from the affected stationary
combustion turbine. If the affected stationary combustion turbine is a CHP stationary
combustion turbine, you must also install, calibrate, maintain, and operate meters to
continuously determine and record the total useful recovered thermal energy. For process
steam applications, you will need to install, calibrate, maintain, and operate meters to
continuously determine and record steam flow rate, temperature, and pressure. If the
affected stationary combustion turbine has a direct mechanical drive application, you
must submit a plan to the Administrator or delegated authority for approval of how gross
energy output will be determined. Your plan shall ensure that you install, calibrate,
maintain, and operate meters to continuously determine and record each component of
the determination. (p1513)
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