Facility Name:Port Washington Generating Station
Facility Identifier:
Facility Reporting Year:2022
Facility Location:
Address: 146 SOUTH WISCONSIN ST
City: PORT WASHINGTON
State: WI
Postal Code: 53074

Facility Site Details:
CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):2,855,764.6
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:2022-01-01
GHG Report End Date:2022-12-31
Description of Changes to Calculation Methodology:
Plant Code Indicator:Y
Primary NAICS Code:221112
Second Primary NAICS Code:

Parent Company Details:
Parent Company Name:WEC Energy Group Inc
Address:231 W. Michigan St., Milwaukee,  WI 53203
Percent Ownership Interest:100

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas NameBiogenic Carbon dioxide
Gas Quantity0 (Metric Tons)
Own Result?

Gas NameMethane
Gas Quantity0.05 (Metric Tons)
Own Result?

Gas NameNitrous Oxide
Gas Quantity0.005 (Metric Tons)
Own Result?

Gas NameCarbon Dioxide
Gas Quantity2,352.1 (Metric Tons)
Own Result?

Unit Details:
Unit Name : GP-1
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Small Unit Aggregation Details:
Use Ivt Indicator: N
Highest Maximum Rated Heat Input Capacity: 1
Cumulative Maximum Rated Heat Input Capacity:

Emission Details:
Annual CO2 mass emissions from sorbent: 0.0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0.0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 892.1 (metric tons)

Tier Fuel Details:
Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 1 (Equation C-1)
Tier Methodology Start Date : 2022-01-01
Tier Methodology End Date : 2022-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
892.1 (Metric Tons) 0.02 (Metric Tons) 0.002 (Metric Tons) 0.4 (Metric Tons) 0.5 (Metric Tons)

Equation C1/C8 Inputs :
Fuel Quantity : 16387800 (scf/year)

Unit Name : AB1
Unit Type : OB (Boiler, other)
Unit Description :
Individual Unit Details:
Use Ivt Indicator: N
Maximum Rated Heat Input Capacity: 90.6 (mmBtu/hr)

Emission Details:
Annual CO2 mass emissions from sorbent: 0.0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0.0 (metric tons)

Tier Fuel Details:
Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 1 (Equation C-1b, natural gas billing in mmBtu)
Tier Methodology Start Date : 2022-01-01
Tier Methodology End Date : 2022-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
820.0 (Metric Tons) 0.02 (Metric Tons) 0.002 (Metric Tons) 0.4 (Metric Tons) 0.5 (Metric Tons)

Equation C1b/C8b Inputs :
Natural Gas Usage : 15453.49 ()

Unit Name : GP-2
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Small Unit Aggregation Details:
Use Ivt Indicator: N
Highest Maximum Rated Heat Input Capacity: 2
Cumulative Maximum Rated Heat Input Capacity:

Emission Details:
Annual CO2 mass emissions from sorbent: 0.0 (Metric Tons)
Annual Biogenic CO2 Emissions: 0.0 (metric tons)
Annual Fossil fuel based CO2 Emissions: 640.0 (metric tons)

Tier Fuel Details:
Fuel : Natural Gas (Weighted U.S. Average)
Tier Name : Tier 1 (Equation C-1)
Tier Methodology Start Date : 2022-01-01
Tier Methodology End Date : 2022-12-31

Fuel Emission Details :
Total CO2 emissionsTotal CH4 emissionsTotal N2O emissionsTotal CH4 emissions CO2eTotal N2O emissions CO2e
640.0 (Metric Tons) 0.01 (Metric Tons) 0.001 (Metric Tons) 0.3 (Metric Tons) 0.4 (Metric Tons)

Equation C1/C8 Inputs :
Fuel Quantity : 11756920.07 (scf/year)


Subpart D: Electricity Generation

Gas Information Details

Gas NameBiogenic Carbon dioxide
Gas Quantity0 (Metric Tons)
Own Result?

Gas NameMethane
Gas Quantity52.87 (Metric Tons)
Own Result?

Gas NameNitrous Oxide
Gas Quantity5.287 (Metric Tons)
Own Result?

Gas NameCarbon Dioxide
Gas Quantity2,850,512.5 (Metric Tons)
Own Result?

Unit Details:

Unit Name : 11
Unit Type : Electricity Generator
Unit Description :
Plant Code : 4040 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 2022-01-01
Methodology End Date: 2022-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 671675.2
Annual CO2 Emissions Including Biomass (short tons): 740387.5
Annual CO2 Emissions from Biomass (metric tons): 0.0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 0
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:  12458395 (mmBtu)
CH4 Emissions CO2 Equivalent:  311.5  (Metric Tons)
N2O Emissions CO2 Equivalent:  371.3  (Metric Tons)


Unit Name : 12
Unit Type : Electricity Generator
Unit Description :
Plant Code : 4040 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 2022-01-01
Methodology End Date: 2022-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 710524.2
Annual CO2 Emissions Including Biomass (short tons): 783210.8
Annual CO2 Emissions from Biomass (metric tons): 0.0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 0
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:  13179100 (mmBtu)
CH4 Emissions CO2 Equivalent:  329.5  (Metric Tons)
N2O Emissions CO2 Equivalent:  392.7  (Metric Tons)


Unit Name : 21
Unit Type : Electricity Generator
Unit Description :
Plant Code : 4040 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 2022-01-01
Methodology End Date: 2022-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 736680.1
Annual CO2 Emissions Including Biomass (short tons): 812042.5
Annual CO2 Emissions from Biomass (metric tons): 0.0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 0
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:  13664153 (mmBtu)
CH4 Emissions CO2 Equivalent:  341.6  (Metric Tons)
N2O Emissions CO2 Equivalent:  407.2  (Metric Tons)


Unit Name : 22
Unit Type : Electricity Generator
Unit Description :
Plant Code : 4040 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 2022-01-01
Methodology End Date: 2022-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 731633.0
Annual CO2 Emissions Including Biomass (short tons): 806479.1
Annual CO2 Emissions from Biomass (metric tons): 0.0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 0
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:  13570507 (mmBtu)
CH4 Emissions CO2 Equivalent:  339.3  (Metric Tons)
N2O Emissions CO2 Equivalent:  404.4  (Metric Tons)