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Joint Crediting Mechanism Approved Methodology VN_AM014“Introduction of energy efficient wire stranding machines to automotive wire production
factory”

A. Title of the methodology
Introduction of energy efficient wire stranding machines to automotive wire production factory,
Version 01.0

B. Terms and definitions
TermsDefinitions

wire stranding machine

A machine which twists metal wires together with otherones for bundling using a bow by electric motor and winds
wires to the bobbin.

C. Summary of the methodology
ItemsGHGemissionSummary
reduction This methodology applies to the project that aims for saving

measuresenergy by introducing energy efficient wire stranding machines
in Vietnam.

Calculationofreference GHG emissions associated with electricity consumption ofemissions

reference wire stranding machines are calculated based on themonitored electricity consumption of project wire stranding
machines, electricity consumption ratio per production unit
(hereinafter referred to as “ECR”), and the CO2 emission factor
for consumed electricity.

Calculationof

project GHG emissions associated with electricity consumption ofemissions

project wire stranding machines are calculated based on themonitored electricity consumption of project wire stranding
machines and the CO2 emission factor for consumed electricity.

Monitoring parameters

Electricity consumption of project wire stranding machines1

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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

Wire stranding machine(s) with energy-saving measures such as reinforcedframes, friction reduction mechanism, energy efficient bow, and lightweightparts is newly installed or installed to replace existing wire strandingmachine(s).

Criterion 2

Flange diameter of bobbin of a wire stranding machine installed in the projectis 560mm.

Criterion 3

Total motor capacity of a project wire stranding machine installed in theproject is equal to or less than 11.0 [kW].

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Electricity consumption by reference wire stranding machines

CO2

Project emissions
Emission sources

GHG types

Electricity consumption by project wire stranding machines

CO2

F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated with electricity consumption of project wire stranding
machines, electricity consumption ratio per production unit (ECR), and CO2 emission factor forelectricity consumed.
ECR is provided as a default value in this methodology and is conservatively set ex ante in thefollowing manner to ensure the net emission reductions.

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1.

The wire stranding machine with higher energy efficiency currently available in theVietnamese market is determined as a reference wire stranding machine.

2.

Electricity consumption per production unit (EPU) of twisted wire by wire stranding
machine, which is expressed in [kWh/km] varies depending on the twisting speed.
Therefore, ECR is uniquely determined as the minimum ECR value in the range of theassumed operational twisting speed.

F.2. Calculation of reference emissionsܴ‫ܧ‬௣ = ෍൫‫ܥܧ‬௉௃,௜,௣ × ‫ܴܥܧ‬൯ × ‫ܨܧ‬௘௟௘௖௜ܴ‫ܧ‬௣‫ܥܧ‬௉௃,௜,௣‫ܴܥܧ‬‫ܨܧ‬௘௟௘௖i: Reference emissions during the period p [tCO2/p]: Electricity consumption of project wire stranding machine i during the period p[MWh/p]: Electricity consumption ratio per production unit [-]: CO2 emission factor for consumed electricity [tCO2/MWh]: Identification number of wire stranding machines [-]G. Calculation of project emissionsܲ‫ܧ‬௣ = ෍ ‫ܥܧ‬௉௃,௜ × ‫ܨܧ‬௘௟௘௖௜ܲ‫ܧ‬௣‫ܥܧ‬௉௃,௜,௣‫ܨܧ‬௘௟௘௖

i: Project emissions during the period p [tCO2/p]: Electricity consumption of project wire stranding machine i during the period p[MWh/p]: CO2 emission factor for consumed electricity [tCO2/MWh]: Identification number of wire stranding machines [-]3

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H. Calculation of emissions reductions‫ܴܧ‬௣ = ܴ‫ܧ‬௣ − ܲ‫ܧ‬௣
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 dataSource‫ܨܧ‬௘௟௘௖CO2 emission factor of consumed electricity.

[Grid electricity]
Ministry of Natural Resources

Whenprojectwirestranding

machines and Environment of Vietnam

consume only grid electricity or captive (MONRE), Vietnamese DNA
electricity, the project participant applies the for CDM unless otherwise
CO2 emission factor respectively.

instructedby

theJointCommittee.
When project wire stranding machines may
consume both grid electricity and captive [Captive electricity]
electricity, the project participant applies the For the option a)
CO2 emission factor with lower value.

Specification of the captivepower[CO2 emission factor]

generationsystemprovided by the manufacturer

For grid electricity: The most recent value (ηelec,CG [%]).
available from the source stated in this table at CO2 emission factor of thethe time of validation

fossil fuel type used in thecaptive

For captive electricity, it is determined based

powersystem (EFfuel,CG [tCO2/GJ])

on the following options:
For the option b)
4generation

JCM_VN_AM014_ver01.0
Sectoral scope: 03a) Calculated from its power generation

Generated

efficiency (ηelec,CG [%]) obtained fromelectricity by the captive powermanufacturer’s specification

generation system (EGPJ,CG,p

The power generation efficiency based on[MWh/p]).

lower heating value (LHV) of the captive

Fuel amount consumed by thepower generation system from thecaptive

powergeneration

manufacturer’s specification is applied;system(FCPJ,CG,p[massEFୣ୪ୣୡ = 3.6 ×100

ηୣ୪ୣୡ,େୋ× EF୤୳ୣ୪,େୋ

andsuppliedorvolume/p]).
Net calorific value (NCVfuel,CG[GJ/mass or volume]) and CO2b) Calculated from measured dataemission

factor(EFfuel,CGThe power generation efficiency calculated[tCO2/GJ])offrom monitored data of the amount of fuelconsumed by the captive power

input for power generation (FCPJ,CG,p) and thegeneration system in order ofamount of electricity generated (EGPJ,CG,p)preference:

during the monitoring period p is applied. The

1) values provided by the fuelthefuelmeasurement is conducted with the monitoring supplier;equipment to which calibration certificate is2) measurement by the projectissued by an entity accredited underparticipants;

national/international standards;

3) regional or national defaultEFୣ୪ୣୡ = FC୔୎,େୋ,୮ × NCV୤୳ୣ୪,େୋ × EF୤୳ୣ୪,େୋ

values;

Where:

×1EG୔୎,େୋ,୮

4) IPCC default values
provided in tables 1.2 and 1.4
of Ch.1 Vol.2 of 2006 IPCC

NCVfuel,CG: Net calorific value of fuelGuidelines on National GHG

consumed by the captive power generation

Inventories. Lower value issystem [GJ/mass or volume]

applied.

Note:[Captive electricity with diesel

In case the captive electricity generation

fuel]system meets all of the following conditions,

CDM approved small scale

the value in the following table may be

methodology: AMS-I.A.

applied to EFelec depending on the consumed
fuel type.

[Captive electricity with naturalgas]

The system is non-renewable generation

2006 IPCC Guidelines onsystem

National GHG Inventories for5

JCM_VN_AM014_ver01.0
Sectoral scope: 03Electricity generation capacity of thethe source of EF of natural gas.

system is less than or equal to 15 MW

CDM Methodological tool
"Determining the baseline

fuel type

DieselEFୣ୪ୣୡ

fuel

Natural gas

0.8 *10.46 *2

efficiency of thermal or electricenergy generation systems
version02.0" for the default
efficiency for off-grid power*1 The most recent value at the time ofplants.

validation is applied.
*2 The value is calculated with the equation inthe option a) above. The lower value of default
effective CO2 emission factor for natural gas(0.0543 tCO2/GJ), and the most efficient valueof default efficiency for off-grid gas turbine
systems (42%) are applied.
‫ܴܥܧ‬Electricity consumption ratio per production Survey results on ࡱࡼࢁࡾࡱ /ࡱࡼࢁࡼࡶunit.

ofwirestrandingmachines that have high market
ECR is derived as a ratio of electricity

share in Vietnam.

consumption per production unit of reference
wire stranding machine to that of project

The default values should bemachine.

revised if necessary.

Where;‫ܷܲܧ = ܴܥܧ‬ோா ⁄‫ܷܲܧ‬௉௃‫ܷܲܧ‬ோா : Electricity consumption per

production unit of reference wire stranding
machine [kWh/km]‫ܷܲܧ‬௉௃ : Electricity consumption per

production unit of project wire stranding
machine [kWh/km]
The default value of ECR is set at theminimum value in a conservative manner, asfollows;
ECR = min൫‫ܷܲܧ‬ோா ⁄‫ܷܲܧ‬௉௃ ൯ = ૚. ૞૚6

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History of the document
Version01.0

Date29 August 2018

Contents revised
Decision by the Joint Committee
Initial approval.

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