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Joint Crediting Mechanism Approved Methodology TH_AM014“Installation of an inverter-controlled separate type fridge showcase for convenience
store(s)”A.

Title of the methodology

Installation of an inverter-controlled separate type fridge showcase for convenience store(s)Version01.0

B. Terms and definitions
Terms

Definitions

Inverter-controlled separate type Inverter-controlled separate type fridge showcase is a typefridge showcaseof fridge showcase of which condensing unit and showcase
unit are separated, and the condensing unit equipped withinverter to control the speed of the compressor motor inorder to maintain the temperature is located outside thestore.
The system includes the following:

Reach-in type fridge showcase (a structure to interrupt
display room from outside air by glass type door)

Open type fridge showcase (a structure to interrupt
display room from outside air by air curtain)

Walk in type fridge showcase (a structure which people
can go in and fill groceries from behind the displayshelves)

Coefficient of Performance

Coefficient of Performance (COP) is the cooling capacity(COP)

per rated power consumption of the fridge showcase.

Part Load Ratio

Ratio of the actual cooling capacity and rated cooling
capacity.

Degradation coefficient

Measure of efficiency loss due to compressor switching
on/off control by constant speed compressor.

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Summary of the methodology
Items

GHG

emission

Summaryreduction This methodology applies to the project that aims for saving

measuresenergy of in-store showcase by introducing an invertercontrolled separate type fridge showcase for convenience
store(s).

Calculationofreference Reference emissions are GHG emissions from the reference

emissionsfridge showcase, non-inverter-controlled fridge showcase.
Reference emissions from the reference fridge showcase arecalculated with:

CalculationofPower consumption of the project fridge showcase



Ratio of COPs of reference and project fridge showcase

Part Load ratio of the showcase



Degradation coefficientCO2 emission factor for consumed electricity.

project Project emissions are calculated with power consumption ofemissions

installed inverter-controlled separate type fridge showcase andCO2 emission factor for consumed electricity.

Monitoring parameters⚫

Power consumption of project fridge showcase⚫

Operating time of the project fridge showcase (ifapplicable)

D.

Eligibility criteria

This methodology is applicable to projects that satisfy all of the following criteria.
Criterion 1

Separate-type inverter-controlled fridge showcase is newly installed or installed
to replace existing fridge showcase at convenience store(s).

Criterion 2

COP of project inverter-controlled separate type fridge showcase i under thestandard temperature conditions* is more than the threshold COP values set in
the table below. (“x” in the table represents cooling capacity per unit.)
Cooling capacity [kW]Reference COP

3.0 ≤ x ≤ 15.0

2.20

15.0 < x ≤ 25.0

1.83

*The standard temperature condition are as follows:2

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Ambient temperature: 32 degrees Celsius
Evaporative temperature: -10 degrees Celsius
Criterion 3Ozone Depletion Potential (ODP) of the refrigerant used for project fridge showcase is zero.

Criterion 4

A plan for prevention of releasing refrigerant used for project separate-type
fridge showcase is prepared. In the case of replacing the existing showcase withthe project showcase, a plan for prevention of releasing refrigerant used in theexisting showcase to the air (e.g. re-use of the equipment) is prepared.
Execution of this plan is checked at the time of verification, in order to confirm
that refrigerant used for the existing one replaced by the project is prevented
from being released to the air.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Power consumption of the reference fridge showcase

CO2Project emissions
Emission sources

GHG types

Power consumption of the project fridge showcase

CO2F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated by multiplying power consumption of project invertercontrolled separate type showcase, ratio of energy efficiency (COPs) of project/reference
showcase, part load ratio of the showcase, Degradation coefficient (CD), and CO2 emission
factor for consumed electricity.
In this methodology, energy saving effects through the inverter are conservatively calculated
to ensure the net emission reductions.
The value of CD is conservatively set as a default value according to the survey on thestandard of air conditioner.

The effects of the improvement of efficiency in operation by inverter control in part load3

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conditions are not taken into account.

F.2. Calculation of reference emissions
For calculation of reference emissions, either Option 1 or Option 2 is selected.
If operating time of project fridge showcase can be measured, Option 2 may be selected.
Option 1
𝑅𝐸𝑝 = ∑ ∑ [𝐸𝐶𝑝𝑗,𝑖,𝑗,𝑝 ×𝑖𝑗

𝐶𝑂𝑃𝑝𝑗,𝑖,𝑗] × 𝐸𝐹𝑒𝑙𝑒𝑐
𝐶𝑂𝑃𝑟𝑒𝑓,𝑖,𝑗

𝑅𝐸𝑝: Reference emissions of fridge showcase during the period p [tCO2/p]

𝐸𝐶𝑝𝑗,𝑖,𝑗,𝑝: Power consumption of the project fridge showcase j at the convenience
store i during the period p [MWh/p]

𝐸𝐹𝑒𝑙𝑒𝑐: CO2 emission factor for consumed electricity [tCO2/MWh]

𝐶𝑂𝑃𝑝𝑗,𝑖,𝑗: COP of the project fridge showcase j at the convenience store i [-]𝐶𝑂𝑃𝑟𝑒𝑓,𝑖,𝑗: COP of the reference fridge showcase j at the convenience store i [-]𝑖: Identification number of the convenience store [-]𝑗: Identification number of fridge showcase [-]Option 2
𝑹𝑬𝒑 = ∑ ∑ [𝑬𝑪𝒑𝒋,𝒊,𝒋,𝒑 ×
𝒊Where,𝒋

𝑪𝑶𝑷𝒑𝒋,𝒊,𝒋
𝟏×] × 𝑬𝑭𝒆𝒍𝒆𝒄
𝑪𝑶𝑷𝒓𝒆𝒇,𝒊,𝒋 𝟏 − 𝑪𝑫 (𝟏 − 𝑷𝑳𝑹𝒊,𝒋,𝒑 )𝑬𝑪𝒑𝒋,𝒊,𝒋,𝒑 ×𝟏𝟎𝟑

𝑷𝑳𝑹𝒊,𝒋,𝒑 = 𝐦𝐢𝐧 (𝒕𝒑𝒋,𝒊,𝒋,𝒑

𝑪𝑶𝑷𝒑𝒋,𝒊,𝒋× 𝑪𝒂𝒑

𝒑𝒋,𝒊,𝒋, 𝟏)

𝑅𝐸𝑝: Reference emissions of fridge showcase during the period p [tCO2/p]

𝐸𝐶𝑝𝑗,𝑖,𝑗,𝑝: Power consumption of the project fridge showcase j at the convenience
store i during the period p [MWh/p]

𝐸𝐹𝑒𝑙𝑒𝑐: CO2 emission factor for consumed electricity [tCO2/MWh]

𝐶𝑂𝑃𝑝𝑗,𝑖,𝑗: COP of the project fridge showcase j at the convenience store i [-]𝐶𝑂𝑃𝑟𝑒𝑓,𝑖,𝑗: COP of the reference fridge showcase j at the convenience store i [-]𝐶𝐷: Degradation Coefficient [-]𝑃𝐿𝑅𝑖,𝑗,𝑝: Part Load ratio of the project fridge showcase j at the convenience store
i during the period p [-]𝑡𝑝𝑗,𝑖,𝑗,𝑝: Operating time of the project fridge showcase j at the convenience store

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i during the period p [hour]
𝐶𝑎𝑝𝑝𝑗,𝑖,𝑗: Capacity of the project fridge showcase j at the convenience store i [kW]𝑖: Identification number of the convenience store [-]𝑗: Identification number of fridge showcase [-]G.

Calculation of project emissions

𝑷𝑬𝒑 = ∑ ∑[𝑬𝑪𝒑𝒋,𝒊,𝒋,𝒑 ] × 𝑬𝑭𝒆𝒍𝒆𝒄
𝐣𝑃𝐸𝑝𝐢: Project emissions of the project fridge showcase during the period p[tCO2/p]𝐸𝐶𝑝𝑗,𝑖,𝑗,𝑝: Power consumption of the project fridge showcase j at the convenience
store i during the period p [MWh/p]

𝐸𝐹𝑒𝑙𝑒𝑐: CO2 emission factor for consumed electricity [tCO2/MWh]i: Identification number of the convenience store [-]𝑗: Identification number of the project fridge showcase [-]H.

Calculation of emissions reductions

𝑬𝑹𝒑 = 𝑹𝑬𝒑 − 𝑷𝑬𝒑
𝐸𝑅𝑝: Emissions reductions during the period p [tCO2/p]

𝑅𝐸𝑝: Reference emissions during the period p [tCO2/p]

𝑃𝐸𝑝: Project emissions during the period p [tCO2/p]

I.

Data and parameters fixed ex ante

The source of each data and parameter fixed ex ante is listed as below.
Parameter
𝐸𝐹𝑒𝑙𝑒𝑐Description of Data

SourceCO2 emission factor for consumed electricity Case 1)[tCO2/MWh].

[Grid electricity]

When the project fridge showcase consumes only The mostrecentvalue1) grid electricity, 2) captive electricity or 3) available at the time ofelectricity directly supplied from other sources validation is applied and(e.g. independent power producer (IPP), small fixed for the monitoring5

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power producer (SPP) and very small power period thereafter. The data
producer (VSPP)) to the project site, the project issourcedfrom“Gridparticipant applies the CO2 emission factor Emission Factor (GEF) ofrespectively.

Thailand”,endorsedbyWhen the project fridge showcase may consume Thailand Greenhouse Gas
electricity supplied from more than 1 electric Management Organization
source, the project participant applies the CO2 (TGO)
emission factor with the lowest value.

unlessotherwise

instructed by theJoint

Committee.
[CO2 emission factor]
Case 1) Grid electricity

Case 2)The most recent value available from the source [Captive electricity]
stated in this table at the time of validation

For Option a)Specification of the captive

Case 2) Captive electricity including

power generation systemcogeneration systemprovided𝐸𝐹𝑒𝑙𝑒𝑐 is determined based on the following

manufacturer ( 𝜂𝑒𝑙𝑒𝑐 [%]).

options:

CO2 emission factor of thea) Calculated from its power generation

fossil fuel type used in theefficiency (𝜂𝑒𝑙𝑒𝑐 [%]) obtained from

captive power generation

manufacturer’s specification.

system (𝐸𝐹𝑓𝑢𝑒𝑙 [tCO2/GJ])

bytheThe power generation efficiency based on lower
For Option b)
Generated and supplied
generation system from the manufacturer’s
electricity by the captive
specification is applied;
power generation system(𝐸𝐺𝑃𝐽,𝑝 [MWh/p]).
100
𝐸𝐹𝑔𝑒𝑛 = 3.6 ×× 𝐸𝐹𝑓𝑢𝑒𝑙
Fuel amount consumed by𝜂𝑒𝑙𝑒𝑐
thecaptivepowergeneration system ( 𝐹𝐶𝑃𝐽,𝑝b) Calculated from measured data[mass or volume/p]).
The power generation efficiency calculated from Net
calorificvalue
heating value (LHV) of the captive powermonitored data of the amount of fuel input for ( 𝑁𝐶𝑉𝑓𝑢𝑒𝑙[GJ/massorpower generation ( 𝐹𝐶𝑃𝐽,𝑝 ) and the amount of volume]) and CO2 emission
electricity generated (𝐸𝐺𝑃𝐽,𝑝 ) during the period p factor of the fuel ( 𝐸𝐹𝑓𝑢𝑒𝑙is applied. The measurement is conducted with [tCO2/GJ])in orderofthe monitoring equipment to which calibration preference:certificate is issued by an entity accredited under 1) values provided by thenational/international standards;

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𝐸𝐹𝑒𝑙𝑒𝑐 = 𝐹𝐶𝑃𝐽,𝑝 × 𝑁𝐶𝑉𝑓𝑢𝑒𝑙 × 𝐸𝐹𝑓𝑢𝑒𝑙 ×

1
𝐸𝐺𝑃𝐽,𝑝

Where:

2) measurement by the
project participants;
3) regional or national

𝑁𝐶𝑉𝑓𝑢𝑒𝑙 : Net calorific value of consumed
fuel [GJ/mass or volume]default values;4) IPCC default values
provided in tables 1.2 andNote:

1.4 of Ch.1 Vol.2 of 2006

In case the captive electricity generation system

IPCC

meets all of the following conditions, the value

National GHG Inventories.

in the following table may be applied to 𝐸𝐹𝑒𝑙𝑒𝑐

Lower value is applied.

Guidelines

ondepending on the consumed fuel type.
⚫
⚫

The system is non-renewable generation[Captive electricity withsystemdiesel fuel]Electricity generation capacity of the system

CDM approved small scaleis less than or equal to 15 MW

methodology: AMS-I.A.

fuel type

Diesel fuelNatural gas

𝐸𝐹𝑒𝑙𝑒𝑐

0.8 *10.46 *2[Captive electricity withnatural gas]

*1 The most recent value at the time of2006 IPCC Guidelines onvalidation is applied.

National GHG Inventories*2 The value is calculated with the equation in the for the source of EF ofoption a) above. The lower value of default natural gas.
effective CO2 emission factor for natural gas CDM Methodological tool
(0.0543tCO2/GJ), and the most efficient value of "Determining the baselinedefault efficiency for off-grid gas turbine systems efficiency of thermal or(42%) are applied.

electric energy generation
systems version 02.0" forCase 3) Electricity directly supplied fromthe default efficiency forother sources including cogeneration system

off-grid power plants.

𝐸𝐹𝑒𝑙𝑒𝑐 is determined based on the following
options:a) The value provided by the electricity supplierwith the evidence;b) The value calculated in the same manner forthe option a) of 2) captive electricity as

Case 3)[Electricity
directly
supplied from other sources
includingcogenerationsystem]
For Option a)

instructed above;Thec) The value calculated in the same manner for

information relevant to the7evidence

statingJCM_TH_AM014_ver01.0
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the option b) of 2) captive electricity asvalue of emission factor

instructed above;(e.g.

dataofpower

When the project fridge showcase may consume generation, type of powerelectricity supplied from more than 1 electric plant, type of fossil fuel,source, the project participant applies the CO2 period of time).
emission factor with the lowest value.
COP of the project fridge showcase j at the The specifications of theconvenience store i at the standard temperature*project fridge showcase andcondensing

𝐶𝑂𝑃𝑝𝑗,𝑖,𝑗

unitfor*The standard temperature conditions are as quotation or the factory
follows:

acceptance test data by

Ambient temperature: 32 degrees Celsius

manufacturer.

Evaporative temperature: -10 degrees Celsius
COP of the reference fridge showcase j at theThe default

convenience store i is selected from the default

derived from the result of

COP values in the following table.

survey on COP of constantvalues are

speed type fridge showcase
Table: COP for Reference fridge showcase(COPref,i,j)

𝐶𝑂𝑃𝑟𝑒𝑓,𝑖,𝑗from manufacturers thathave high market share.

Cooling capacity [kW]Reference COP

The COPref,i,j should be

3.0 ≤ x ≤ 15.0

2.20revised if necessary from15.0 < x ≤ 25.0

1.83

surveyresultwhichisconducted by the JC or
project participants.
Capacity of the project fridge showcase j at the Nominal value available onconvenience store i at the standard temperature productcondition.

catalogs,

specification documents or

The value of capacity (kW) prepared by websites.
𝐶𝑎𝑝𝑝𝑗,𝑖,𝑗manufacturer is applied.
*The standard temperature conditions are as
follows:
Ambient temperature: 32 degrees Celsius
Evaporative temperature: -10 degrees Celsius

𝐶𝐷Degradation Coefficient, as indicated in theThe default value is derived

Table below.

from the survey on thevalues

8ofDegradation

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Parameter

Value

CoefficientCD0.15

conditioning system.

History of the document
Version01.0

Date
20 September 2021

Contents revisedElectronic decision by the Joint Committee
Initial approval.

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