GHG Summary Report

CO2 equivalent emissions from facility subparts C-II, SS, and TT (metric tons):945,379.9
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:BERKSHIRE HATHAWAY INC
Address:3555 Farnam Street, Suite 1440, Omaha, NE 68131
Percent Ownership Interest:100

Subpart C: General Stationary Fuel Combustion

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	4,745 (Metric Tons)
Own Result?

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

Gas Name	Methane
Gas Quantity	0.09 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	0.009 (Metric Tons)
Own Result?

Unit Details:

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

Individual Unit Details:
Use Ivt Indicator: N
Maximum Rated Heat Input Capacity: 45 (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
160.5 (Metric Tons)	0.00 (Metric Tons)	0.000 (Metric Tons)	0.1 (Metric Tons)	0.1 (Metric Tons)

Equation C2a/C9a Inputs :
Fuel Quantity : 2900973.807 (scf/year)
Use Default High Heat Value : false
Equation C2b Inputs :

	Fuel Combusted	High Heat Value
January	18253.35547 (scf/month)	0.001045084 (mmBtu/scf)
February	960589.875 (scf/month)	0.001045046 (mmBtu/scf)
March	55763.93359 (scf/month)	0.0010476 (mmBtu/scf)
April	550530.25 (scf/month)	0.0010438 (mmBtu/scf)
May
June	1306736.75 (scf/month)	0.0010409 (mmBtu/scf)
July
August
September	170.6678009 (scf/month)	0.001035568 (mmBtu/scf)
October
November
December	333.8659973 (scf/month)	0.001043509 (mmBtu/scf)

Unit Name : Dewpoint Heater
Unit Type : NGLH (Heater, natural gas line)
Unit Description :

Individual Unit Details:
Use Ivt Indicator: N
Maximum Rated Heat Input Capacity: 13 (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
4584.5 (Metric Tons)	0.09 (Metric Tons)	0.009 (Metric Tons)	2.2 (Metric Tons)	2.6 (Metric Tons)

Equation C2a/C9a Inputs :
Fuel Quantity : 82947979.09 (scf/year)
Use Default High Heat Value : false
Equation C2b Inputs :

	Fuel Combusted	High Heat Value
January	10398889 (scf/month)	0.001045084 (mmBtu/scf)
February	7795304.5 (scf/month)	0.001045046 (mmBtu/scf)
March	164.2 (scf/month)	0.0010476 (mmBtu/scf)
April	5609481.5 (scf/month)	0.0010438 (mmBtu/scf)
May	7236404.5 (scf/month)	0.0010438 (mmBtu/scf)
June	6289803 (scf/month)	0.0010409 (mmBtu/scf)
July	7168954.5 (scf/month)	0.0010367 (mmBtu/scf)
August	6891736.5 (scf/month)	0.0010358 (mmBtu/scf)
September	7945574.5 (scf/month)	0.001035568 (mmBtu/scf)
October	7285858.5 (scf/month)	0.0010415 (mmBtu/scf)
November	6548883.4 (scf/month)	0.001044919 (mmBtu/scf)
December	9776925 (scf/month)	0.001043509 (mmBtu/scf)

Subpart D: Electricity Generation

Gas Information Details

Gas Name	Carbon Dioxide
Gas Quantity	939,675.4 (Metric Tons)
Own Result?

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

Gas Name	Methane
Gas Quantity	17.42 (Metric Tons)
Own Result?

Gas Name	Nitrous Oxide
Gas Quantity	1.742 (Metric Tons)
Own Result?

Unit Details:

Unit Name : CTG1B
Unit Type : Electricity Generator
Unit Description :
Plant Code : 56102 (numeric, maximum of 6 digits)
Part 75 Methodology : Appendix G, Equation G-4
Methodology Start Date: 2005-03-01
Methodology End Date: 2020-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 443404.4
Annual CO2 Emissions Including Biomass (short tons): 488764.7
Annual CO2 Emissions from Biomass (metric tons): 0

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

Electricity Fuel Details:

Fuel type: Natural Gas (Weighted U.S. Average)
Annual heat input: 8224389.3 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 205.6 (Metric Tons)
N₂O Emissions CO₂ Equivalent: 245.1 (Metric Tons)

Unit Name : CTG1A
Unit Type : Electricity Generator
Unit Description :
Plant Code : 56102 (numeric, maximum of 6 digits)
Part 75 Methodology : Appendix G, Equation G-4
Methodology Start Date: 2005-03-01
Methodology End Date: 2020-12-31
Acid Rain Program Indicator: Y

Emission Details:
Annual CO2 Emissions Including Biomass (metric tons): 496271
Annual CO2 Emissions Including Biomass (short tons): 547039.5
Annual CO2 Emissions from Biomass (metric tons): 0

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

Electricity Fuel Details:

Fuel type: Natural Gas (Weighted U.S. Average)
Annual heat input: 9204985.7 (mmBtu)
CH₄ Emissions CO₂ Equivalent: 230.1 (Metric Tons)
N₂O Emissions CO₂ Equivalent: 274.3 (Metric Tons)