JCM_TH_F_PDD_ver02.0

JCM Project Design Document Form
A. Project description
A.1. Title of the JCM projectLow-carbon Operation for Power Grid Utilizing Online Voltage-var(Q) Optimal Control(OPENVQ) with ICT
A.2. General description of project and applied technologies and/or measures
The proposed JCM project aims to reduce CO2 emissions by reducing transmission loss throughinstallation of online voltage-var (Q) optimal control (OPENVQ) system to the transmission
system of the Electricity Generating Authority of Thailand (EGAT).
The OPENVQ system forecasts the future power flow and supply-demand balance by using
facility and measurement data in the transmission network obtained from the grid control systemand by combining such data with power generation plans and weather forecasts. Then, optimallycontrolling voltages and reactive power online while securing voltage stability, it will makepower system operation more sophisticated and efficient, leading to the reduction of power loss.
In the proposed project, OPENVQ is planned to be linked with Supervisory Control and Data
Acquisition (SCADA) used in the Northeastern Area Control Center (NEC), which is one of theRegional Control Centers (RCC) operated by EGAT, to optimize voltages and reactive power inthe transmission network in pursuit of reduction of power losses by utilizing measurement data,an accurate demand forecasting technology and reliable optimal current calculations.
The project is expected to reduce a total of 21,462 tCO2 annually on average.
A.3. Location of project, including coordinates
Country

Kingdom of Thailand

Region/State/Province etc.:

20 provinces that are covered by NEC of EGAT, namely Amnat
Charoen, Bueng Kan, Buriram, Chaiyaphum, Kalasin, Khon
Kaen, Loei, Maha Sarakham, Mukdahan, Nakhon Phanom,Nakhon Ratchasima, Nong Bua Lamphu, Nong Khai, Roi Et,
Sakon Nakhon, Si Sa Ket, Surin, Ubon Ratchathani, Udon
Thani, and Yasothon Provinces.

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JCM_TH_F_PDD_ver02.0(Source: EGAT)
City/Town/Community etc:

N/A

Latitude, longitude

N 16°24'43.9" E 102°49'01.8"(Latitude and longitude of NEC)A.4. Name of project participants
The Kingdom of Thailand

Electricity Generating Authority of Thailand (EGAT)Japan

Hitachi, Ltd.

A.5. Duration
14/11/2022

Starting date of project operation2

JCM_TH_F_PDD_ver02.0

8 yearsExpected operational lifetime of project
A.6. Contribution from Japan

The proposed project receives financial support from the government of Japan. The project has
been selected as one of the JCM demonstration projects by the New Energy and Industrial
Technology Development Organization (NEDO). As a result of the financial support provided
by NEDO’s program, implementation cost of the proposed project has been partially financedby the Japanese government. Furthermore, implementation of the proposed project promotes
technology transfer of low carbon technologies in Thailand. Through the NEDO program,
operation of OPENVQ will be monitored during the project operation. During the construction,installation, and operation of OPENVQ, Hitachi will provide technical knowhow to EGAT,and help EGAT to implement proper operation and monitoring.

B. Application of an approved methodology(ies)B.1. Selection of methodology(ies)
Selected approved methodology No.

TH_AM017

Version number01.0

B.2. Explanation of how the project meets eligibility criteria of the approved methodology
Eligibility

Descriptions specified in the methodology

Project information

criteria
Criterion 1

The project installs OPENVQ to the control The project installs OPENVQ tosystem of transmission network.

the control system of the projecttransmission network.

Criterion 2

The project transmission network is one of the The project installs OPENVQ tofive regional networks served by EGAT, in the Northeastern Area Control
whicheachnetwork

iscontrolled

by Center (NEC), which is one ofrespective regional control center (RCC). The the EGAT’s RCCs, to control
project transmission network has delivery thenortheastern

partofpoints which are connected to the regional transmission network of EGAT.
distribution network corresponding to each of
the five regions managed by Metropolitan The
Electricity Authority(MEA),andproject

four network controlled by NEC has

Provincial Electricity Authorities (PEA), delivery
Northeast,South,North,and3transmission

pointswhichareCentral, connected to the Northeast

JCM_TH_F_PDD_ver02.0

respectively. The project transmission network PEA.
consists of transmission lines of 500kV,230kV, and115kV, and substations.

The

project

networktransmission
consistsoftransmission lines of 500kV,230kV,and115kV,andsubstations.
Criterion 3

The project transmission network is monitored The

project

and operated on-line, and the data of active network
power, reactive power, voltage, resistance, and operated

istransmission
monitoredon-line

andthroughsusceptance of the transmission line is OPENVQ which is linked withcollected remotely.

SCADA system of NEC.
The data of active power,reactivepower,voltage,resistance, and susceptance ofthe transmission line is collected
remotely by SCADA systemand sent to OPENVQ system
automatically.
Criterion 4The

difference

betweenreference Based on the measured datatransmission line loss calculated based on the during sampling period fromprocedure described in F.2 and calculated June2021

toMay2022,

thetransmission line loss based on the data calculation

wasconductedmeasured during sampling period is less than following

theprocedurethe difference between measured substation described in F.2. The result is as
loss and simulated substation loss in the case follows:of installing OPENVQ based on the datameasured during sampling period. This isconfirmed

bysatisfying

thefollowingܲ‫ܮ‬ோா,௑,௟௜௡௘௦ − ܲ‫ܮ‬௠௘௔௦௨௥௘ௗ,௑,௟௜௡௘௦
= 1.5(‫ܹܯ‬ℎ)ܲ‫ܮ‬௠௘௔௦௨௥௘ௗ,௑,௦௨௕௦௧௔௧௜௢௡௦

formula:ܲ‫ܮ‬ோா,௑,௟௜௡௘௦ − ܲ‫ܮ‬௠௘௔௦௨௥௘ௗ,௑,௟௜௡௘௦< ܲ‫ܮ‬௠௘௔௦௨௥௘ௗ,௑,௦௨௕௦௧௔௧௜௢௡௦− ܲ‫ܮ‬ை௉ாே௏ொ,௑,௦௨௕௦௧௔௧௜௢௡௦
4− ܲ‫ܮ‬ை௉ாே௏ொ,௑,௦௨௕௦௧௔௧௜௢௡௦
= 251.3(‫ܹܯ‬ℎ)Therefore, it is confirmed that thedifference

betweenreferenceJCM_TH_F_PDD_ver02.0ܲ‫ܮ‬ோா,௑,௟௜௡௘௦ =transmission

linelossandReference transmission line loss (W)calculated transmission line lossܲ‫ܮ‬௠௘௔௦௨௥௘ௗ,௑,௟௜௡௘௦ =based on the data measured

Measured transmission line loss in theduring sampling period is lesssampling period (W)thanܲ‫ܮ‬௠௘௔௦௨௥௘ௗ,௑,௦௨௕௦௧௔௧௜௢௡௦ =measured substation loss andthedifference

betweenMeasured substation loss in the sampling

simulated substation loss in theperiod (W)case of installing OPENVQ basedܲ‫ܮ‬ை௉ாே௏ொ,௑,௦௨௕௦௧௔௧௜௢௡௦ =on the data measured during

Simulated substation loss in the case ofsampling period.

installing OPENVQ (W)The detail steps to confirm validity ofcalculation method of reference emissions aredescribed in Additional Information.

C. Calculation of emission reductions
C.1. All emission sources and their associated greenhouse gases relevant to the JCM project
Reference emissions
Emission sources

GHG type

Transmission loss of transmission line

CO2
Project emissions

Emission sources

GHG type

Transmission loss of transmission line

CO2

C.2. Figure of all emission sources and monitoring points relevant to the JCM project
The measurement points are shown below.

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JCM_TH_F_PDD_ver02.0

S/S: Substation
SCADA: Supervisory Control and Data Acquisition
CT: Current Transformer
PT: Potential Transformer
RTU: Remote Terminal Unit
C.3. Estimated emissions reductions in each year
Year

Estimated

Reference Estimatedemissions (tCO2e)

Project EstimatedEmission

2022

Emissions (tCO2e)
Reductions (tCO2e)34,579.6
31,869.0
2,710

2023

300,442.5

278,882.7

21,5592024

301,265.6

279,646.7

21,6182025

300,442.5

278,882.7

21,5592026

300,442.5

278,882.7

21,5592027

300,442.5

278,882.7

21,5592028

301,265.6

279,646.7

21,6182029

300,442.5

278,882.7

21,5592030

250,231.5

232,274.9

17,956

Total (tCO2e)

171,697

D. Environmental impact assessment
Legal requirement of environmental impact assessment for No
the proposed project6

JCM_TH_F_PDD_ver02.0

E. Local stakeholder consultation
E.1. Solicitation of comments from local stakeholders
The local stakeholder consultation was held to introduce the OPENVQ project and JCM schemeand solicit their comments. Notices were sent to stakeholders a month before the meeting via email.
Outline of the meeting is as below:
Date: 28/09/2022
Time: 10:00-12:00
Venue: Meeting room of the Hitachi Asia (Thailand) Co., Ltd.
Agenda:TimeAgenda

Presenter

10:00-10:15

Confirmation of AttendanceAll

10:15-10:25

Opening Remarks

Hitachi Asia (Thailand) Co.,Ltd.

10:25-11:00

Introduction of the project

Hitachi, Ltd. and EGAT

11:00-11:10

Q&A

All

11:10-11:45

Introduction of JCM MRV methodology

EY ShinNihon LLC

11:45-11:55

Q&A

All

11:55-12:00

Closing Remarks

Hitachi, Ltd.

List of participants:
Organizations

Number of Participants

1

Ministry of Energy (MoEN)

4

2

Energy Policy and Planning Office (EPPO)23Energy Regulatory Commission (ERC)

34Thailand greenhouse Gas Management Organization

3(TGO)
5New Energy and Industrial Technology Development

1Organization (NEDO) Representative Office in Bangkok
6Hitachi, Ltd. (Hitachi)

3

7Hitachi Asia (Thailand) Co., Ltd.

5

8Electricity Generating Authority of Thailand (EGAT)39

EY ShinNihon LLC

1Total25

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JCM_TH_F_PDD_ver02.0

At the meeting, the details of the proposed project and the technology to be introduced and JCM
procedures including the project emission reduction effects were explained. The comments
received during the local stakeholders meeting are summarized in the following section E.2.
Most comments showed high expectation toward introduction of the technology. No negative
opinions towards the project were received during the meeting.
E.2. Summary of comments received and their consideration
Stakeholders
MoEN

Comments received

Consideration of comments received

It is glad to hear the progress of Positive comment was received.
Hitachi and EGAT’s project. It is good No further action is needed.
ambition for Hitachi and EGAT topromote OPENVQ in Thailand andASEAN. I am very proud that
Thailand will be the first country toinstall OPENVQ.
How much CO2 emissions will be 5% power loss can be expected by
reduced by introduction of OPENVQ? introduction of OPENVQ. Accordingtothepreliminary

calculation,20,000tCO2 emission reductions isexpected annually.
No further action is needed.
Are there any constrains on the There are no constrains on theintroduction of OPENVQ depending introduction of OPENVQ with respect
on the type of power plant connected to type of power plants.
to transmission line?

No further action is needed.

It was mentioned that the TPE will There are accredited TPEs underverify the data, but who will actually Thai-Japan JCM scheme and listed on
do this work?

the website. One of accredited TPEs
will conduct verification for thisproject.
No further action is needed.

In the presentation, a figure of CO2 The potential revenue from credit
emission reduction for 5 years was sales is not known at this stage,shown, but how much will the actual however the project can provide
cost of OPENVQ be paid off?
8benefit by reducing fuel cost andJCM_TH_F_PDD_ver02.0

increasing sales of electricity by
reducing transmission loss.
No further action is needed.
EPPO

How do you handle data corrections, A feature of OPENVQ is its ability tofor instance uncertainty of load due to forecast substation demand. By taking
renewable energy?

snapshot of transmission, and using its
data, OPENVQ can forecast grid edge
conditionwithhighaccuracy.

OPENVQ is able to forecast within
5% error margin and it is considered
as Hitachi's cutting-edge technology.
No further action is needed.
Is there a possibility of introducing Currently, Hitachi is focusing onOPENVQ to the power distribution transmission line because the system
side?

on the power distribution side isslightlydifferent.

However,fundamental technology is same andcan also be expanded to distributionside.
No further action is needed.
EGAT has forecasting system for We know EGAT has forecasting
renewable energy. Is there any system for renewable energy, but thisdifference?

system is to maintain frequency. On
the other hand, OPENVQ’s purpose is
to maintain voltage and var andrequiresforecastingforeachsubstation, which is different. In
future, there may be possibility tomerge both technology and function.
Therefore, Hitachi would like tocontinue discussion with EGAT.
No further action is needed.
TGO

What if reference transmission line Criteria 4 of the methodology is set toloss is more than BaU transmission ensureline loss?

that

difference

betweenreference transmission line loss andBaU transmission line loss is smaller9

JCM_TH_F_PDD_ver02.0

than the loss reductions at thesubstations in order to ensure theconservativeness and net emission
loss.
No further action is needed.

F. References
N/A
Reference lists to support descriptions in the PDD, if any.

Annex

Revision history of PDD
VersionDate
1.0

05/12/2022

Contents revisedFirst edition10