GHG Summary Report

CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):261,006.9
CO2 equivalent emissions from supplier subparts LL-QQ (metric tons):
Biogenic CO2 emissions from facility subparts C-II, SS, and TT (metric tons):0
Cogeneration Unit Emissions Indicator:N
GHG Report Start Date:2020-01-01
GHG Report End Date:2020-12-31
Description of Changes to Calculation Methodology:
Plant Code Indicator:Y
Primary NAICS Code:221112
Second Primary NAICS Code:

Parent Company Details:

Parent Company Name:TALEN ENERGY CORP
Address:1780 Hughes Landing BLVD, Suite 800, The Woodlands, TX 77380
Percent Ownership Interest:100

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	1,118.3 (Metric Tons)
Own Result?

Gas Name	Biogenic Carbon dioxide
Gas Quantity	0 (Metric Tons)
Own Result?

Gas Name	Methane
Gas Quantity	0.02 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	0.002 (Metric Tons)
Own Result?

Unit Details:

Unit Name : Combustion Turbine 3
Unit Type : SCCT (CT (Turbine, simple cycle combustion))
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N (EGU)
Maximum Rated Heat Input Capacity: 350 (mmBtu/hr)

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 2 (Equation C-2a)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31
Frequency of HHV determinations : Monthly

Tier 2 Monthly HHV Details :

January	February	March	April	May	June	July	August	September	October	November	December
N	N	N	N	N	N	N	N	N	N	N	N

Fuel Emission Details :

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
54.3 (Metric Tons)	0.00 (Metric Tons)	0.000 (Metric Tons)	0 (Metric Tons)	0 (Metric Tons)

Equation C2a/C9a Inputs :
Fuel Quantity : 995047.3 (scf/year)
Use Default High Heat Value : false
Equation C2b Inputs :

	Fuel Combusted	High Heat Value
January	115549.2 (scf/month)	0.001029 (mmBtu/scf)
February
March
April
May
June
July
August
September
October
November	82858.9 (scf/month)	0.001029 (mmBtu/scf)
December	796639.2 (scf/month)	0.001029 (mmBtu/scf)

Unit Name : Combustion turbine 2
Unit Type : SCCT (CT (Turbine, simple cycle combustion))
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N (EGU)
Maximum Rated Heat Input Capacity: 350 (mmBtu/hr)

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

January	February	March	April	May	June	July	August	September	October	November	December
N	N	N	N	N	N	N	N	N	N	N	N

Fuel Emission Details :

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
410.1 (Metric Tons)	0.01 (Metric Tons)	0.001 (Metric Tons)	0.2 (Metric Tons)	0.2 (Metric Tons)

Equation C2a/C9a Inputs :
Fuel Quantity : 7512503 (scf/year)
Use Default High Heat Value : false
Equation C2b Inputs :

	Fuel Combusted	High Heat Value
January	115549.2 (scf/month)	0.001029 (mmBtu/scf)
February
March
April
May
June	1618336.1 (scf/month)	0.001028 (mmBtu/scf)
July	2766442 (scf/month)	0.001029 (mmBtu/scf)
August	2903917.4 (scf/month)	0.001029 (mmBtu/scf)
September	20174 (scf/month)	0.001028 (mmBtu/scf)
October	88084.3 (scf/month)	0.001028 (mmBtu/scf)
November
December

Unit Name : Combustion turbine 1
Unit Type : SCCT (CT (Turbine, simple cycle combustion))
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N (EGU)
Maximum Rated Heat Input Capacity: 350 (mmBtu/hr)

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

January	February	March	April	May	June	July	August	September	October	November	December
N	N	N	N	N	N	N	N	N	N	N	N

Fuel Emission Details :

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
483.0 (Metric Tons)	0.01 (Metric Tons)	0.001 (Metric Tons)	0.2 (Metric Tons)	0.3 (Metric Tons)

Equation C2a/C9a Inputs :
Fuel Quantity : 8847972.9 (scf/year)
Use Default High Heat Value : false
Equation C2b Inputs :

	Fuel Combusted	High Heat Value
January	115549.2 (scf/month)	0.001029 (mmBtu/scf)
February
March
April
May
June	1387145.2 (scf/month)	0.001028 (mmBtu/scf)
July	2766442 (scf/month)	0.001029 (mmBtu/scf)
August	3629896.8 (scf/month)	0.001029 (mmBtu/scf)
September	20174 (scf/month)	0.001028 (mmBtu/scf)
October	132126.5 (scf/month)	0.001028 (mmBtu/scf)
November
December	796639.2 (scf/month)	0.001030 (mmBtu/scf)

Unit Name : Auxiliary Boiler 3A
Unit Type : OB (Boiler, other)
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N (EGU)
Maximum Rated Heat Input Capacity: 243 (mmBtu/hr)

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 1 (Equation C-1)
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31

Fuel Emission Details :

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
0 (Metric Tons)	0 (Metric Tons)	0 (Metric Tons)	0 (Metric Tons)	0 (Metric Tons)

Equation C1/C8 Inputs :
Fuel Quantity : 0 (scf/year)

Unit Name : Combustion Turbine 4
Unit Type : SCCT (CT (Turbine, simple cycle combustion))
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N (EGU)
Maximum Rated Heat Input Capacity: 350 (mmBtu/hr)

Emission Details:
Annual CO₂ mass emissions from sorbent: 0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0 (metric tons)

Tier Fuel Details:

January	February	March	April	May	June	July	August	September	October	November	December
N	N	N	N	N	N	N	N	N	N	N	N

Fuel Emission Details :

Total CO2 emissions	Total CH4 emissions	Total N2O emissions	Total CH4 emissions CO2e	Total N2O emissions CO2e
170.9 (Metric Tons)	0.00 (Metric Tons)	0.000 (Metric Tons)	0.1 (Metric Tons)	0.1 (Metric Tons)

Equation C2a/C9a Inputs :
Fuel Quantity : 3132375.9 (scf/year)
Use Default High Heat Value : false
Equation C2b Inputs :

	Fuel Combusted	High Heat Value
January	115549.2 (scf/month)	0.001029 (mmBtu/scf)
February
March
April
May
June	462381.7 (scf/month)	0.001028 (mmBtu/scf)
July
August
September
October	2554445 (scf/month)	0.001028 (mmBtu/scf)
November
December

Subpart D: Electricity Generation

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	259,622.3 (Metric Tons)
Own Result?

Gas Name	Biogenic Carbon dioxide
Gas Quantity	0 (Metric Tons)
Own Result?

Gas Name	Methane
Gas Quantity	4.67 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	0.498 (Metric Tons)
Own Result?

Unit Details:

Unit Name : 3
Unit Type : Electricity Generator
Unit Description :
Plant Code : 3148 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 1995-01-01
Methodology End Date: 2020-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 124349.5
Annual CO2 Emissions Including Biomass (short tons): 137070.5
Annual CO2 Emissions from Biomass (metric tons): 0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 4
Operating Hours Stack Gas Flow Rate Substituted: 0
Operating Hours Stack Gas Moisture Substituted:

Electricity Fuel Details:

Fuel type: Natural Gas (Weighted U.S. Average)
Annual heat input: 2317748 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 57.9 (Metric Tons)
N₂O Emissions CO₂ Equivalent: 69.1 (Metric Tons)

Fuel type: Distillate Fuel Oil No. 2
Annual heat input: 311 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 0.0 (Metric Tons)
N₂O Emissions CO₂ Equivalent: 0.1 (Metric Tons)

Blend Fuel Name: Blend of No. 2, No. 5, No. 6 fuel Oil
Blend Fuel Type: Blend (liquid)
Annual heat input: 23274 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 0.1 Y (Metric Tons)
N₂O Emissions CO₂ Equivalent: 4.2 Y (Metric Tons)

Unit Name : 4
Unit Type : Electricity Generator
Unit Description :
Plant Code : 3148 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 1995-01-01
Methodology End Date: 2020-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 135272.8
Annual CO2 Emissions Including Biomass (short tons): 149111.2
Annual CO2 Emissions from Biomass (metric tons): 0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 4
Operating Hours Stack Gas Flow Rate Substituted: 0
Operating Hours Stack Gas Moisture Substituted:

Electricity Fuel Details:

Fuel type: Natural Gas (Weighted U.S. Average)
Annual heat input: 2352851 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 58.8 (Metric Tons)
N₂O Emissions CO₂ Equivalent: 70.1 (Metric Tons)

Fuel type: Distillate Fuel Oil No. 2
Annual heat input: 316.4 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 0.0 (Metric Tons)
N₂O Emissions CO₂ Equivalent: 0.1 (Metric Tons)

Blend Fuel Name: Blend of No. 2, No. 5, No. 6 fuel Oil
Blend Fuel Type: Blend (liquid)
Annual heat input: 28499.9 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 0.1 Y (Metric Tons)
N₂O Emissions CO₂ Equivalent: 5.1 Y (Metric Tons)