GHG Summary Report

CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):693,352.5
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:Y
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:221330
Second Primary NAICS Code:221112

Parent Company Details:

Parent Company Name:VICINITY ENERGY
Address:100 Franklin St., 2nd Floor, Boston, MA 02110
Percent Ownership Interest:100

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	113,457.6 (Metric Tons)
Own Result?

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

Gas Name	Methane
Gas Quantity	2.11 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	0.211 (Metric Tons)
Own Result?

Unit Details:

Unit Name : 25
Unit Type : OCS (Other combustion source)
Unit Description :
Other Unit Name :
Plant Code : 54785 (numeric, maximum of 6 digits)

Emission Details:
Annual Biogenic CO2 Emissions: 0 (metric tons)

Annual CO2 emission measured by CEMS or Other Part75 Methodology : 113457.6
Tier Methodology Start Date : 2020-01-01
Tier Methodology End Date : 2020-12-31
Part75 Heat Input Method : Appendix D
Part 75 CO2 Methodology : Appendix D and G calculation method--- § 98.33(a)(5)(i)

Appendix D and G calculation method :
Source operating hours in the reporting year that fuel flow rate was missing : 2
Source operating hours in the reporting year that high heating value was missing : 0

Tier Fuel Details:

Fuel : Natural Gas (Weighted U.S. Average)

Fuel Emission Details :

Fuel type: Natural Gas (Weighted U.S. Average)
Annual heat input: 2101533 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 52.5 (Metric Tons)
N₂O Emissions CO₂ Equivalent: 62.6 (Metric Tons)

Fuel : Distillate Fuel Oil No. 2

Fuel Emission Details :

Fuel type: Distillate Fuel Oil No. 2
Annual heat input: 2134 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 0.3 (Metric Tons)
N₂O Emissions CO₂ Equivalent: 0.3 (Metric Tons)

Subpart D: Electricity Generation

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	579,190.7 (Metric Tons)
Own Result?

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

Gas Name	Methane
Gas Quantity	10.74 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	1.074 (Metric Tons)
Own Result?

Unit Details:

Unit Name : 2
Unit Type : Electricity Generator
Unit Description :
Plant Code : 54785 (numeric, maximum of 6 digits)
Part 75 Methodology : Appendix G, Equation G-4
Methodology Start Date: 1998-01-01
Methodology End Date: 2020-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 579190.7
Annual CO2 Emissions Including Biomass (short tons): 638441.9
Annual CO2 Emissions from Biomass (metric tons): 0

Appendix G Equation G4:
Operating Hours Fuel Flow Rate: 2
Operating Hours HHV Substitution: 0

Electricity Fuel Details:

Fuel type: Natural Gas (Weighted U.S. Average)
Annual heat input: 10743016.067 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 268.6 (Metric Tons)
N₂O Emissions CO₂ Equivalent: 320.1 (Metric Tons)