JCM_VN_F_PM_ver01.0

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

Socialist Republic of Viet Nam

Name of the methodology proponents HOYA Corporation
submitting this form
Sectoral scope(s) to which the Proposed 3. Energy demand
Methodology applies
Title of the proposed methodology, and Energy Saving by Introduction of Heat Recovery
version number

Electric Heat Pump, Version 01.0

List of documents to be attached to this form

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

Additional information

Date of completion

07/08/2018

History of the proposed methodology
Version1.0

Date
07/08/2018

Contents revisedFirst edition1

JCM_VN_F_PM_ver01.0

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 GHG
emission 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 arecalculated 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 emission2

JCM_VN_F_PM_ver01.0

factor for the reference equipment for heating energy
generation. 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 types
Reference emissions
Emission sources

GHG types

Power consumption by reference electric heater and air-cooled chiller

3CO2JCM_VN_F_PM_ver01.0

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 (𝜂𝑅𝐸ℎ ) 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 (𝜂𝑅𝐸ℎ ) 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 emissions
𝐸𝐶𝑃𝐽,𝑖,𝑝 × 3.6 𝐻𝑃𝐽,𝑖
𝐸𝐶𝑃𝐽,𝑖,𝑝
𝐶𝐻𝑃𝐽,𝑖𝑅𝐸𝑝 = ∑ (×× 𝐸𝐹𝑅𝐸ℎ ) + ∑ (×× 𝐸𝐹𝑒𝑙𝑒𝑐 )𝐸𝐶𝑅𝑖
𝜂𝑅𝐸ℎ𝐸𝐶𝑅𝑖
𝐶𝑂𝑃𝑅𝐸,𝑐𝑜𝑜𝑙,𝑖𝑖𝑖

Where𝑅𝐸𝑝

Reference emissions during the period p [tCO2/p]

𝐸𝐶𝑃𝐽,𝑖,𝑝Power consumption of project HREHP i during the period p [MWh/p]

𝐸𝐶𝑅𝑖

Rated electricity consumption of project HREHP i [kW]𝐻𝑃𝐽,𝑖Rated heating capacity of project HREHP i [kW]𝜂𝑅𝐸ℎEfficiency of the reference equipment for heating energy generation [-]𝐸𝐹𝑅𝐸ℎCO2 emission factor for the reference equipment for heating energygeneration [tCO2/GJ]
4

JCM_VN_F_PM_ver01.0

𝐶𝐻𝑃𝐽,𝑖Rated cooling capacity of project HREHP i [kW]𝐶𝑂𝑃𝑅𝐸,𝑐𝑜𝑜𝑙,𝑖

COP of reference air-cooled chiller i [-]𝐸𝐹𝑒𝑙𝑒𝑐CO2 emission factor for consumed electricity [tCO2/MWh]i

Identification number of project HREHP

G. Calculation of project emissions

𝑃𝐸𝑝 = ∑(𝐸𝐶𝑃𝐽,𝑖,𝑝 × 𝐸𝐹𝑒𝑙𝑒𝑐 )𝑖Where𝑃𝐸𝑝

Project emissions during the period p [tCO2/p]𝐸𝐶𝑃𝐽,𝑖,𝑝Power consumption of project HREHP i during the period p [MWh/p]

𝐸𝐹𝑒𝑙𝑒𝑐CO2 emission factor for consumed electricity [tCO2/MWh]

H. Calculation of emissions reductions
𝐸𝑅𝑝 = 𝑅𝐸𝑝 − 𝑃𝐸𝑝
Where
𝐸𝑅𝑝

Emission 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

Description of data

5SourceJCM_VN_F_PM_ver01.0

𝐸𝐹𝑒𝑙𝑒𝑐CO2 emission factor of consumed electricity.

[Grid electricity]
Ministry

Whenproject

HREHPselectricity

orcaptiveparticipant

appliestheconsumeelectricity,
CO2

only
theofNatural

grid Resources

andproject Environment of Vietnam

emission factor (MONRE),

respectively.

Vietnamese

DNA for CDM unlessotherwise 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]
lower value.

For the option a)Specification[CO2 emission factor]

ofthe

captive power generationFor grid electricity: The most recent value available system provided by thefrom the source stated in this table at the time of manufacturer
validation(ηelec,CG[%]).
CO2 emission factor ofFor captive electricity, it is determined based on thethe fossil fuel type used infollowing options:

thecaptivegenerationa) Calculated from its power generation efficiency

powersystem(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]).

EFelec = 3.6 ×100
ηelec,CG× EFfuel,CG

Fuel amount consumed bythecaptivegeneration

powersystemb) Calculated from measured data

(FCPJ,CG,p

The 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 orelectricity 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 fuel

6[masscalorificandorvalue
CO2

JCM_VN_F_PM_ver01.0

calibration certificate is issued by an entity

consumed by the captive

accredited under national/international standards;

power generation system

EFelec = FCPJ,CG,p × NCVfuel,CG × EFfuel,CGin order of preference:11) values provided by the×EGPJ,CG,pfuel supplier;

Where: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 in

IPCC 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 generationsystem[Captive electricity withElectricity generation capacity of the system isdiesel fuel]less than or equal to 15 MW

CDM approved small
scale methodology:

fuel typeEFelecDieselNatural gas

fuel
0.8 *10.46 *2AMS-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

baseline

efficiencyofthermal or electric energy
generation
version02.0"
defaultsystems
for

theefficiency

foroff-grid power plants.
7

theJCM_VN_F_PM_ver01.0

𝐸𝐹𝑅𝐸ℎCO2 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 project

supplier;

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 of

Applied 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 auxiliaryvalue is applied.

heater in the project is applied.
Electric heater

CO2 emission factor in the[Electric heater]same manner as 𝐸𝐹𝑒𝑙𝑒𝑐 in thisSame source as thesection divided by 3.6

parameter 𝐸𝐹𝑒𝑙𝑒𝑐 in this(𝐸𝐹𝑅𝐸ℎ = 𝐸𝐹𝑒𝑙𝑒𝑐 /3.6) issection

applied.
𝐸𝐶𝑅𝑖

Rated electricity consumption of project HREHP i

Specifications of project[kW]

HREHP i prepared for thequotation or factory
acceptance test data bymanufacturer

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

CDM
tool

Methodological“DeterminingWhen 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

systems,

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]

Type of auxiliary heater
Boiler

8Default value

Theoretically

0.92

efficient value

themostJCM_VN_F_PM_ver01.0

Electric heater

𝐶𝑂𝑃𝑅𝐸,𝑐𝑜𝑜𝑙,𝑖

1.0

COP of reference air-cooled chiller i [-]The 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 kWshouldbenecessary

revisedfromifsurveyresult which is conductedbyJCorproject

participants.
𝐻𝑃𝐽,𝑖Rated heating capacity of project HREHP i [kW]Specifications of project
HREHP i prepared for thequotation

orfactory

acceptance test data by
manufacturer
𝐶𝐻𝑃𝐽,𝑖Rated cooling capacity of project HREHP i [kW]Specifications of project
HREHP i prepared for thequotation

orfactory

acceptance test data by
manufacturer

9