JCM_VN_AM012_ver01.0
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Joint Crediting Mechanism Approved Methodology VN_AM012“Energy Saving by Introduction of Heat Recovery Electric Heat Pump”

A. Title of the methodology
Energy Saving by Introduction of Heat Recovery Electric Heat Pump, Version 01.0

B. Terms and definitions
Terms

Definitions

Heat Recovery Electric Heat

A heat pump system run by electricity where heating andPump (HREHP)

cooling energy are simultaneously generated and supplied.

Coefficient of Performance

A ratio of the energy produced by the equipment to the(COP)energy consumed by the equipment including chiller, heatpump and electric heater, which is calculated by using
following formula:
COP = Q/W
Where:
Q: Amount of heat produced by the equipment [watts]
W: Electric power consumed by the equipment [watts]

Periodical check

Periodical check is a periodical investigation of HREHP doneby manufacturer or agent who is authorized by themanufacturer, in order to maintain HREHP performance.

C. Summary of the methodology
Items
GHG

emissionmeasuresCalculation
emissions

Summaryreduction HREHP is introduced to save energy, which leads to GHGemission reductions.

ofreference Reference emissions are GHG emissions from using reference
equipment for heating energy generation (boiler or electricheater) and air-cooled chiller for cooling energy generation.
Reference emissions for heating energy generation are1

JCM_VN_AM012_ver01.0
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calculated with power consumption of project HREHP(s), rated
electricity consumption of project HREHP, rated heating
capacity of project HREHP, efficiency of the reference
equipment for heating energy generation and CO2 emission
factor for the reference equipment for heating energygeneration. Reference emissions for cooling energy generation
are calculated with power consumption of project HREHP(s),rated electricity consumption of project HREHP, rated cooling
capacity of project HREHP, efficiency of the reference
equipment for cooling energy generation (COP) and CO2emission factor for electricity consumed.
Calculationofproject Project emissions are GHG emissions from using projectemissions

HREHP(s), calculated with power consumption of project
HREHP(s) and CO2 emission factor for electricity consumed.

Monitoring parameters

Power consumption of project HREHP(s)The amount of fuel consumption and the amount ofelectricity generated by captive power, where applicable

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

A project introduces (an) heat recovery electric heat pump(s) (HREHP). In case(an) project HREHP(s) replaces existing equipment, the existing one is not (an)HREHP(s).

Criterion 2

Periodical check is planned more than one (1) time annually.

Criterion 3

Ozone Depletion Potential (ODP) of the refrigerant used for project HREHP(s) iszero.

Criterion 4

A plan for prevention of releasing refrigerant used for project HREHP(s) isprepared. In the case of replacing the existing chiller with the project HREHP(s),a plan for prevention of releasing refrigerant used in the existing chiller 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 types2

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Reference emissions
Emission sources

GHG types

Power consumption by reference electric heater and air-cooled chiller

CO2

Project emissions
Emission sources

GHG types

Power consumption by project HREHP(s)CO2

F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated by multiplying electricity consumption of the project
HREHP(s) by the ratio of efficiency between a reference equipment and project HREHP(s), andemission factors of electricity and/or fuel consumed.
[The efficiency values for reference equipment for heating energy generation]
1. The efficiency value for the reference boiler (ߟோா௛ ) is set to 0.92 as a default value in aconservative manner referred to the CDM methodological tool “Determining the baseline

efficiency of thermal or electric energy generation systems, Version 2”.
2. The efficiency value for the reference electric heater (ߟோா௛ ) is set to 1.0, theoretically themost efficient value, as a default value in a conservative manner.
[The reference COP value for air-cooled chiller]

1. The reference COP value (COPRE,cool,i) varies by its cooling capacity.
2. The maximum values of COP in each cooling capacity range set as default values in aconservative manner as described in Section I.
F.2. Calculation of reference emissions‫ܥܧ‬௉௃,௜,௣ × 3.6 ‫ܪ‬௉௃,௜‫ܥܧ‬௉௃,௜,௣‫ܪܥ‬௉௃,௜ܴ‫ܧ‬௣ = ෍ ൬×× ‫ܨܧ‬ோா௛ ൰ + ෍ ቆ×× ‫ܨܧ‬௘௟௘௖ ቇ‫ܴܥܧ‬௜ߟோா௛‫ܴܥܧ‬௜
‫ܱܲܥ‬ோா,௖௢௢௟,௜௜௜

Whereܴ‫ܧ‬௣‫ܥܧ‬௉௃,௜,௣‫ܴܥܧ‬௜

Reference emissions during the period p [tCO2/p]
Power consumption of project HREHP i during the period p [MWh/p]
Rated electricity consumption of project HREHP i [kW]3

JCM_VN_AM012_ver01.0
Sectoral scope: 03‫ܪ‬௉௃,௜ߟோா௛‫ܨܧ‬ோா௛‫ܪܥ‬௉௃,௜‫ܱܲܥ‬ோா,௖௢௢௟,௜‫ܨܧ‬௘௟௘௖i

Rated heating capacity of project HREHP i [kW]Efficiency of the reference equipment for heating energy generation [-]CO2 emission factor for the reference equipment for heating energy
generation [tCO2/GJ]
Rated cooling capacity of project HREHP i [kW]COP of reference air-cooled chiller i [-]CO2 emission factor for consumed electricity [tCO2/MWh]
Identification number of project HREHPG. Calculation of project emissionsܲ‫ܧ‬௣ = ෍൫‫ܥܧ‬௉௃,௜,௣ × ‫ܨܧ‬௘௟௘௖ ൯௜

Whereܲ‫ܧ‬௣‫ܥܧ‬௉௃,௜,௣‫ܨܧ‬௘௟௘௖

Project emissions during the period p [tCO2/p]
Power consumption of project HREHP i during the period p [MWh/p]
CO2 emission factor for consumed electricity [tCO2/MWh]

H. Calculation of emissions reductions‫ܴܧ‬௣ = ܴ‫ܧ‬௣ − ܲ‫ܧ‬௣
Where‫ܴܧ‬௣

ܴ‫ܧ‬௣
ܲ‫ܧ‬௣

Emission reductions during the period p [tCO2/p]
Reference emissions during the period p [tCO2/p]
Project emissions during the period p [tCO2/p]4

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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.
Parameter‫ܨܧ‬௘௟௘௖

Description of dataSource[Grid electricity]

CO2 emission factor of consumed electricity.

Ministry
Whenproject

HREHPselectricity

orcaptiveparticipant

appliestheconsume

electricity,CO2

only
theof

Naturalgrid Resources

andproject Environment of Vietnam

emission factor (MONRE),

Vietnamese

DNA for CDM unlessrespectively.

otherwise instructed by
When project HREHPs may consume both grid the Joint Committee.
electricity and captive electricity, the project
participant applies the CO2 emission factor with [Captive electricity]
For the option a)lower value.

Specificationof

thecaptive power generation[CO2 emission factor]

For grid electricity: The most recent value available system provided by thefrom the source stated in this table at the time of manufacturer(ηelec,CG[%]).

validation

CO2 emission factor of
For captive electricity, it is determined based on thethe fossil fuel type used infollowing options:

thecaptivegenerationa) Calculated from its power generation efficiencypowersystem(EFfuel,CG [tCO2/GJ])(ηelec,CG [%]) obtained from manufacturer’s
specification

For the option b)

The power generation efficiency based on lower

Generated and supplied

heating value (LHV) of the captive powerelectricity by the captive

generation system from the manufacturer’s

power generation system

specification is applied;(EGPJ,CG,p [MWh/p]).

EFୣ୪ୣୡ = 3.6 ×100

ηୣ୪ୣୡ,େୋ

× EF୤୳ୣ୪,େୋ

Fuel amount consumed bythecaptive

generation

powersystemb) Calculated from measured data

(FCPJ,CG,pThe power generation efficiency calculated fromvolume/p]).

monitored data of the amount of fuel input forNet

power generation (FCPJ,CG,p) and the amount of(NCVfuel,CG [GJ/mass or

5[masscalorificorvalueJCM_VN_AM012_ver01.0
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electricity generated (EGPJ,CG,p) during thevolume])monitoring period p is applied. The measurement isemission factor (EFfuel,CG

conducted with the monitoring equipment to which[tCO2/GJ]) of the fuelcalibration certificate is issued by an entity

consumed by the captive

accredited under national/international standards;

power generation system

EFୣ୪ୣୡ = FC୔୎,େୋ,୮ × NCV୤୳ୣ୪,େୋ × EF୤୳ୣ୪,େୋ
×Where:1EG୔୎,େୋ,୮

and

CO2

in order of preference:
1) values provided by thefuel supplier;2) measurement by theNCVfuel,CG: Net calorific value of fuel consumed byproject participants;

the captive power generation system [GJ/mass or3) regional or nationalvolume]default values;4) IPCC default values

Note:provided in tables 1.2 andIn case the captive electricity generation system

1.4 of Ch.1 Vol.2 of 2006

meets all of the following conditions, the value inIPCC Guidelines on

the following table may be applied to EFelec

National GHG

depending on the consumed fuel type.

Inventories. Lower value
is applied.

The system is non-renewable generation
system[Captive electricity with

Electricity generation capacity of the system isdiesel fuel]less than or equal to 15 MW

CDM approved small
scale methodology:

fuel typeEFୣ୪ୣୡDiesel

Natural gas

fuel0.8 *1

0.46 *2

AMS-I.A.
[Captive electricity withnatural gas]

*1 The most recent value at the time of validation isapplied.
*2 The value is calculated with the equation in theoption a) above. The lower value of default
effective CO2 emission factor for natural gas(0.0543 tCO2/GJ), and the most efficient value ofdefault efficiency for off-grid gas turbine systems(42%) are applied.

2006 IPCC Guidelines on
National GHG Inventories
for the source of EF ofnatural gas.
CDM
tool

Methodological"Determining

baselineof

thermal or electric energy
generation

6

efficiency

thesystems

JCM_VN_AM012_ver01.0
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version02.0"
defaultfor

theefficiency

foroff-grid power plants.
‫ܨܧ‬ோா௛CO2 emission factor for the reference equipment for[Boiler]heating energy generation [tCO2/GJ]

In the order of preference:a) value provided by fuelWhen an auxiliary heater exists in the projectsupplier;

HREHP(s), a value is applied according to theb) value measured by theinstruction described in the table below depending

project participants;on the type of auxiliary heater.

c) regional or national

When an auxiliary heater does not exist in the default value; orproject HREHP(s), a value of natural gas for boiler d) IPCC default value
is applied.

provided in table 1.4 ofType ofApplied value

Guidelines on National

auxiliary heater
Boiler

Ch.1 Vol.2 of 2006 IPCC

CO2 emission factor of the fuelGHG Inventories. Lower

consumed by the auxiliary

value is applied.

heater in the project is applied.
Electric heater

CO2 emission factor in the[Electric heater]same manner as ‫ܨܧ‬௘௟௘௖ in thisSame source as thesection divided by 3.6(‫ܨܧ‬ோா௛ = ‫ܨܧ‬௘௟௘௖ /3.6) isparameter ‫ܨܧ‬௘௟௘௖ in thissectionapplied.
‫ܴܥܧ‬௜

Rated electricity consumption of project HREHP i

Specifications of project[kW]HREHP i prepared for thequotation or factory
acceptance test data bymanufacturer

ߟோா௛

Efficiency of the reference equipment for heating [Boiler]
energy generation [-]

CDM
tool

Methodological“Determining

When an auxiliary heater exists in the project baseline

efficiency

theofHREHP(s), a default value from the table below is thermal or electric energy
applied depending on the type of auxiliary heater.

generation

When an auxiliary heater does not exist in the Version 2”
project HREHP(s), a default value of boiler fromthe table below is applied.

[Electric heater]
7systems,

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Default value

Theoretically

Boiler0.92

efficient value

Electric heater

1.0Type of auxiliary heater‫ܱܲܥ‬ோா,௖௢௢௟,௜

COP of reference air-cooled chiller i [-]themostThe default COP values
are derived from the result

COP of the reference chiller is selected from the of survey on COP ofdefault COP values in the following table in line air-cooled chillers fromwith cooling capacity of the project HREHP i. (“x” manufacturers with highin the table represents cooling capacity per unit.)

market share. The survey
should prove the use ofCooling capacity4≤x≤6060<x≤140

140<x≤184

3.08

2.96

2.71

per unit (USRt)
COPRE,cool,iclear methodology.
The default COP values*1 USRt = 12,000 BTU/hr = 3.52 kW

shouldbe

necessary

revisedfromifsurvey

result which is conductedby

JCorproject

participants.
‫ܪ‬௉௃,௜

Rated heating capacity of project HREHP i [kW]Specifications of project
HREHP i prepared for thequotationorfactory

acceptance test data bymanufacturer‫ܪܥ‬௉௃,௜

Rated cooling capacity of project HREHP i [kW]Specifications of project
HREHP i prepared for thequotation

orfactory

acceptance test data by
manufacturer

History of the document
Version01.0

Date
29 August 2018

Contents revised
Decision by the Joint Committee
Initial approval.

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