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We assess data from two of Tradewater's Verra-certified refrigerant destruction projects in Ghana from 2018 and 2019. Since these data do not include project costs, we cannot use them to sense-check overall cost-effectiveness. Instead, we examined the plausibility of Tradewater’s estimates of (a) counterfactual baseline emissions from destroyed GHG and (b) project emissions. This model was lightly updated in November 2022. The prior version of this model was published in 2021.Description09/11/2018
destruction event		04/10/2019
destruction event		UnitsSource notes
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Baseline Emissions
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Quantity of refrigerant destroyed
by the project activity:		Key:Default value from VERRA documents
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- From stockpile1.9113.22tons of ODS (tODS) of CFC-12VCS Monitoring Report for 09-11-2018 event
VCS Monitoring Report for 04-10-2019 event		Calculated
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- From end of life equipment0.000.00tODSParameters with most uncertainty
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Rate of refrigerants (destroyed)
which would be vented into the
atmosphere in the baseline:		PercentageSection 9.1 p. 20 of the VCS Methodology (VM0016)
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- From stockpile0.00%0.00%
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- From end of life equipment100.00%100.00%
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Emission factor for the rate of
refrigerants (destroyed) which would be
vented into the atmosphere		11Value between 0 and 1Section 8.1 p.12 of the VCS Methodology (VM0016)Price per carbon offset (as of Nov 2022)$17
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Rate of refrigerants (destroyed) by
the project activity which would also be
destroyed in the baseline [%,0-100%]		0.00%0.00%PercentageSection 9.1 p. 21 of the VCS Methodology (VM0016)Total revenue generated$2,642,980
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Emission factor for the rate of
refrigerants (destroyed) by the project
activity which would also be destroyed
in the baseline		00Value between 0 and 1Section 8.1 p.12 of the VCS Methodology (VM0016)
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Rate of refrigerants which would
remain in, or be recovered and become
part of, a stockpile in the baseline		PercentageSection 9.1 p. 21 of the VCS Methodology (VM0016)
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- From stockpile100%100%
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- From end of life equipment0%0%
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Global warming potential of
refrigerant type i		1090010,900tCO2e/tODSiGWP values based on the IPCC Fourth assessment report 2007 - Working group I report “The physical science basis of climate change” - Chapter 2 “Changes in Atmospheric Constituents and in Radiative Forcing” table 2.14/page 212
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Annual emission rate of refrigerant (destroyed),
which would remain in, or be recovered
and become part of, a stockpile in the
baseline		PercentageAnnual emission rates were sourced from the latest version of the Climate Action Reserve’s Article 5 ODS Project Protocol.
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From stockpile25%25%
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From end of life equipment100%100%
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Project crediting period1010Years
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Emission factor for the rate of refrigerant
(destroyed) which would be reused in the
baseline (for stockpile)		0.9440.944Value between 0 and 1Section 8.1 p.12 of the VCS Methodology (VM0016)
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Emission factor for the rate of
refrigerant i (destroyed) which would be
reused in the baseline (for end of life
equipment)		11Value between 0 and 1Section 8.1 p.12 of the VCS Methodology (VM0016)
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Baseline emissions from
refrigerants which would be released into
the atmosphere in the absence of the
project activity in year y		19,647135,936tCO2eEquation (2) on page 11 of the VCS Methodology (VM0016)
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Baseline emissions from blowing
agents contained in insulation foams of
refrigeration appliances which would be
released into the atmosphere in the absence
of the project activity.		0.000.00tCO2eSection 8.1 p.11 of the VCS Methodology (VM0016)
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Total emissions avertedTotal quantity of baseline emissions from
refrigerants and blowing agents
(foam) which would be released into the
atmosphere in the absence of the project
activity		19,647135,936tCO2e
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Project Emissions
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Amount of electricity (MWh) consumed at
the ODS recovery facility from the grid		NANAMWh
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tons CO2/MWhNANAtons CO2/MWh
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Average technical transmission and
distribution losses in the grid for the voltage
level at which electricity is obtained from the
grid at the project site		NANA%
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Project emissions from fossil fuel
consumption attributable to the ODS
recovery facility including third party used
fossil fuel to generate energy for the ODS
recovery facility.		NANAtCO2e
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Project emissions from electricity
consumption from the grid at the ODS
recovery facility		NANAtCO2e
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Emissions from energy
consumption at ODS
recovery facility		Project emissions from energy consumption
at the ODS recovery facility		tCO2e
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Quantity of ODS refrigerant sent for
destruction by the project activity, including
eligible and ineligible material		1.9113.22tODS for CFC12
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Quantity of ODS blowing agent sent for
destruction by the project activity, including
eligible and ineligible material		00tODS
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Default emission factor aggregating both
transportation and destruction emissions		7.57.5tCO2CAR Article 5 Ozone Depleting Substances Project Protocol Table 6.2
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Emissions from
transportation and
destruction		Project emission from ODS transportation
and destruction		14.3399.12tCO2e
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Total project emissions14.3399.12tCO2e
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Project Leakage
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Because stockpiled ODS in Ghana is not
sold or re-used in Ghana, the destruction
of ODS in this Project will not lead to the
production or consumption of other
refrigerant chemicals, and therefore no
substitute refrigerant emissions will be
calculated.		00tCO2e
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Estimated net GHG emission reductions or removals
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Difference between avoided ODS emissions & project emissions
19,632.28135,837.10tCO2
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