Facility Name:Winyah
Facility Identifier:
Facility Reporting Year:2023
Facility Location:
Address: 661 STEAM PLANT DRIVE
City: GEORGETOWN
State: SC
Postal Code: 29440

Facility Site Details:
CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):2,904,224.6
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:2023-01-01
GHG Report End Date:2023-12-31
Description of Changes to Calculation Methodology:
Plant Code Indicator:Y
Primary NAICS Code:221112
Second Primary NAICS Code:

Parent Company Details:
Parent Company Name:SOUTH CAROLINA PUBLIC SERVICE AUTHORITY
Address:1 Riverwood Drive, Moncks Corner,  SC 29461
Percent Ownership Interest:100

Subpart D: Electricity Generation

Gas Information Details

Gas NameCarbon Dioxide
Gas Quantity2,881,957.6 (Metric Tons)
Own Result?

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

Gas NameMethane
Gas Quantity325.65 (Metric Tons)
Own Result?

Gas NameNitrous Oxide
Gas Quantity47.402 (Metric Tons)
Own Result?

Unit Details:

Unit Name : 2
Unit Type : Electricity Generator
Unit Description :
Plant Code : 6249 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 1995-01-01
Methodology End Date: 2023-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 938378.3
Annual CO2 Emissions Including Biomass (short tons): 1034374.5
Annual CO2 Emissions from Biomass (metric tons): 0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 15
Operating Hours Stack Gas Flow Rate Substituted: 8
Operating Hours Stack Gas Moisture Substituted: 3

Electricity Fuel Details:
Fuel type: Bituminous
Annual heat input:  9759329 (mmBtu)
CH4 Emissions CO2 Equivalent:  2683.8  (Metric Tons)
N2O Emissions CO2 Equivalent:  4653.2  (Metric Tons)

Fuel type: Distillate Fuel Oil No. 2
Annual heat input:  27850 (mmBtu)
CH4 Emissions CO2 Equivalent:  2.1  (Metric Tons)
N2O Emissions CO2 Equivalent:  5.0  (Metric Tons)

Fuel type: Used Oil
Annual heat input:  22404 (mmBtu)
CH4 Emissions CO2 Equivalent:  1.7  (Metric Tons)
N2O Emissions CO2 Equivalent:  4.0  (Metric Tons)


Unit Name : 3
Unit Type : Electricity Generator
Unit Description :
Plant Code : 6249 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 1995-01-01
Methodology End Date: 2023-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 527490.9
Annual CO2 Emissions Including Biomass (short tons): 581453.3
Annual CO2 Emissions from Biomass (metric tons): 0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 24
Operating Hours Stack Gas Flow Rate Substituted: 21
Operating Hours Stack Gas Moisture Substituted:

Electricity Fuel Details:
Fuel type: Bituminous
Annual heat input:  5131269 (mmBtu)
CH4 Emissions CO2 Equivalent:  1411.1  (Metric Tons)
N2O Emissions CO2 Equivalent:  2446.6  (Metric Tons)

Fuel type: Distillate Fuel Oil No. 2
Annual heat input:  34582 (mmBtu)
CH4 Emissions CO2 Equivalent:  2.6  (Metric Tons)
N2O Emissions CO2 Equivalent:  6.2  (Metric Tons)


Unit Name : 4
Unit Type : Electricity Generator
Unit Description :
Plant Code : 6249 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 1995-01-01
Methodology End Date: 2023-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 560073.2
Annual CO2 Emissions Including Biomass (short tons): 617368.7
Annual CO2 Emissions from Biomass (metric tons): 0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 10
Operating Hours Stack Gas Flow Rate Substituted: 4
Operating Hours Stack Gas Moisture Substituted:

Electricity Fuel Details:
Fuel type: Bituminous
Annual heat input:  6077727 (mmBtu)
CH4 Emissions CO2 Equivalent:  1671.4  (Metric Tons)
N2O Emissions CO2 Equivalent:  2897.9  (Metric Tons)

Fuel type: Distillate Fuel Oil No. 2
Annual heat input:  20984 (mmBtu)
CH4 Emissions CO2 Equivalent:  1.6  (Metric Tons)
N2O Emissions CO2 Equivalent:  3.8  (Metric Tons)


Unit Name : 1
Unit Type : Electricity Generator
Unit Description :
Plant Code : 6249 (numeric, maximum of 6 digits)
Part 75 Methodology : CEMS
Methodology Start Date: 1995-01-01
Methodology End Date: 2023-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 856015.2
Annual CO2 Emissions Including Biomass (short tons): 943585.6
Annual CO2 Emissions from Biomass (metric tons): 0

CEMS Details:
Operating Hours CO2 Concentration Substituted: 7
Operating Hours Stack Gas Flow Rate Substituted: 11
Operating Hours Stack Gas Moisture Substituted: 8

Electricity Fuel Details:
Fuel type: Bituminous
Annual heat input:  8585351 (mmBtu)
CH4 Emissions CO2 Equivalent:  2361.0  (Metric Tons)
N2O Emissions CO2 Equivalent:  4093.5  (Metric Tons)

Fuel type: Distillate Fuel Oil No. 2
Annual heat input:  33201 (mmBtu)
CH4 Emissions CO2 Equivalent:  2.5  (Metric Tons)
N2O Emissions CO2 Equivalent:  5.9  (Metric Tons)

Fuel type: Used Oil
Annual heat input:  54100 (mmBtu)
CH4 Emissions CO2 Equivalent:  4.1  (Metric Tons)
N2O Emissions CO2 Equivalent:  9.7  (Metric Tons)