JCM_VN_F_PM_ver01.0

JCM Proposed Methodology Form
Cover sheet of the Proposed Methodology Form
Form for submitting the proposed methodology
Host CountryVietnam

Name of the methodology proponents NTTsubmitting this form

DATA

INSTITUTE

OF

MANAGEMENT CONSULTING, INC.

Sectoral scope(s) to which the Proposed 3. Energy demand
Methodology applies
Title of the proposed methodology, and Introduction
version numberofair

conditioning systemequipped with inverters, Version 01.0

List of documents to be attached to this form

The attached draft JCM-PDD:(please check):

Additional information

Date of completion

12/08/2016

History of the proposed methodology
Version01.0

Date
12/08/2016

Contents revisedFirst edition1

JCM_VN_F_PM_ver01.0

A. Title of the methodology
Introduction of air conditioning system equipped with inverters, Version 01.0

B. Terms and definitions
Terms

Definitions

Air-conditioning system with

Air-conditioning system with inverters is a type of air

inverters

conditioning system which contains inverter, an apparatus
to control the speed of the compressor motor in line withdifferent load demand.

Coefficient of Performance

Coefficient of Performance (COP) is the cooling capacity(COP)per rated electricity consumption of the air conditioning
system.
The values of cooling capacity and rated electricity
consumption are defined under specific temperature statedin ISO5151:2010.
In this methodology, a COP value of project air
conditioning system is set based on calculation by thevalue of its cooling capacity divided by the electricity
consumption of the outdoor unit according to data bymanufacturer.

C. Summary of the methodology
Items
GHG

emissionmeasures

Summary
reduction This methodology applies to the project that aims for savingenergy by introducing air-conditioning system with inverter forcooling in Vietnam.

Calculation
emissions

ofreference GHG emissions associated with electricity consumption ofreference air conditioning system are calculated based on themonitored electricity consumption of project air conditioning
system, the ratio of COPs of reference/project air conditioning2

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system, and the CO2 emission factor of the electricity consumed
by project air conditioning system.
Calculationof

project GHG emissions associated with electricity consumption ofemissions

project air conditioning system are calculated based on themonitored electricity consumption of project air conditioning
system and the CO2 emission factor of the electricity consumed
by project air conditioning system.

Monitoring parametersElectricity consumption of outdoor unit of project airconditioning system

Total electricity consumption of indoor units of project airconditioning system

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

Air-conditioning system with inverter is newly installed or installed to replace
existing non-inverter air conditioning system.

Criterion 2

Cooling capacity of project air conditioning system is more than or equal to
14kW.

Criterion 3

COP of project air-conditioning system has a COP value higher than that ofthe value indicated in the table below.
COP for Reference Air Conditioning System (COPRE,i)
Cooling Capacity [kW]14 ≤ x < 28
28 ≤ x < 42
42 ≤ x < 5656 ≤ x

Criterion 4

Reference COP
2.97
2.94
2.91
2.56

Ozone Depletion Potential (ODP) of the refrigerant used for project airconditioning system is zero.

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Criterion 5Plans to prevent release of refrigerants into the atmosphere at the time of air
conditioning system removal are prepared for both project air conditioning
system and the existing air conditioning system replaced by the project. In thecase of replacing existing air conditioning system by project air conditioning
system, execution of the prevention plan is checked at the time of verification,e.g. re-use of the refrigerant, in order to confirm that refrigerant used for theexisting air conditioning system removed by the project is not released to theair.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Electricity consumption by reference air conditioning systems

CO2

Project emissions
Emission sources

GHG types

Electricity consumption by project air conditioning systems (include an CO2indoor unit and an outdoor unit)

F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated with electricity consumption of project air conditioningsystem, ratio of COPs of project/reference air conditioning system, and CO2 emission factor forelectricity consumed.
The COP of reference air conditioning system of non-inverter type is conservatively set ex antein the following manner to ensure the net emission reductions.
- The reference COP, at a certain cooling capacity, is set at a maximum value in therespective cooling capacity range.

F.2. Calculation of reference emissions

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ࡾࡱ࢖ = ෍൛ࡱ࡯ࡼࡶ,࢏,࢕࢛࢚ࢊ࢕࢕࢘,࢖ × ൫࡯ࡻࡼࡼࡶ,࢏,࢕࢛࢚ࢊ࢕࢕࢘ ÷ ࡯ࡻࡼࡾࡱ,࢏ ൯ൟ × ࡱࡲࢋ࢒ࢋࢉ࢏

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

ECPJ,i,outdoor,p: Electricity consumption of outdoor unit of project air conditioning system iduring the period p [MWh/p]

COPPJ,i,outdoor: COP of outdoor unit of project air conditioning system i [-]COPRE,i: COP of reference air conditioning system i [-]EFelec: CO2 emission factor for consumed electricity [tCO2/MWh]i: Identification number of air conditioning system [-]G. Calculation of project emissionsܲ‫ܧ‬௣ = ൭෍ ‫ܥܧ‬௉௃,௜,௢௨௧ௗ௢௢௥,௣ + ‫ܥܧ‬௉௃,௜௡ௗ௢௢௥,௣ ൱ × ‫ܨܧ‬௘௟௘௖௜

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

ECPJ,i,outdoor,p: Electricity consumption of outdoor unit of project air conditioning system iduring the period p [MWh/p]

ECPJ,indoor,p: Total electricity consumption of indoor units of project air conditioningsystem during the period p [MWh/p]

EFelec: CO2 emission factor for consumed electricity [tCO2/MWh]i: Identification number of air conditioning system [-]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]5

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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
CO2 emission factor for consumed electricity.
When captive power generation is not available
at the project site, then the most recent
Vietnamese national grid emission factor [EFgrid]
available at the time of validation is applied as[EFelec] and fixed for the monitoring period
thereafter.

Source[EFgrid]
Ministryof
NaturalResources and Environmentof Vietnam (MONRE),
Vietnamese DNA for CDM
unless otherwise instructedby the Joint Committee.

[EFcaptive]
CDM
approved small scale
When captive power generation is available atmethodology:AMS-I.Athe project site, then [EFelec] is conservatively
selected as below and fixed for the monitoring
period thereafter:
EFelec = min(EFgrid, EFcaptive)
EFcaptive = 0.8 tCO2/MWh**The most recent emission factor available from
CDM approved small scale methodology
AMS-I.A at the time of validation is applied.
COP of reference air conditioning system i, as

Nominal value available onindicated in Table 1. The values of cooling

product catalogs,

capacity and rated electricity consumption used

specification documents orin the calculation of COP are obtained fromwebsites, hearing survey.

product catalogs, specification documents orwebsite, hearing survey of major manufacturers
in Vietnam.
COPRE,iTable 1 : COP for Reference Air Conditioning
System (COPRE,i)
Cooling Capacity [kW]Reference COP

14 ≤ x < 28

2.97

28 ≤ x < 422.94

42 ≤ x < 56

2.91

56 ≤ x

2.56

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The default values arederived from the result ofsurvey on COP of air
conditioning system with
non-inverter
frommanufacturers that have highmarket share.
The default values should be
revised if necessary fromsurvey result which isconducted by JC or project
participants every threeyears. The survey should
prove the use of clear
methodology.

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COP of outdoor unit of project air conditioning

Specifications of project airsystem i. The value of cooling capacity and rated conditioning system for theCOPPJ,i,outdoor

electricity consumption used in the calculation

quotation or factoryof COP prepared by manufacturer is applied.

acceptance test data bymanufacturer.

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