TERMS OF REFERENCE

For
VIETNAM WIND GRID INTEGRATION STUDIES

Deadline for application: 31 October 2013

Location: Vietnam
Estimated period of assignment: November 2013 – August 2014

1. Background and rationale

EVN and ICASEA signed the MOU on 2 May 2012 in Hanoi on the cooperation namely
“Study on wind power in Vietnam power system and Electricity Market” which includes three
components as follows:

- Component 1: Impact of wind power on Vietnam’s power system;

- Component 2: Interconnection of wind power to EVN’s transmission system;
- Component 3: Integration of wind power to a competitive electricity market structure
Under Component 2, the Technical Manual for Interconnecting Wind Power to
Vietnam Power System has been prepared and introduced by EVN and ICASEA. However,
this Technical Manual was based on a low penetration limit for wind power and did not rely
on full scale study of grid integration with simulation models. Nevertheless, it serves as a
technical reference of guide pending having in place official regulation by the government on
interconnecting wind power to Vietnam power system. For this latter purpose, full scale grid
impact studies are needed. In the decision No 1272/QD-BCD dated 4 March 2013, EVN is
assigned by MOIT to develop technical standards for Smart Grid, including standard for
Renewable Energy integration. EVN is cooperating with ICASEA to conduct the wind
integration studies in 2013 and 2014. ICASEA will recruit international consultant as the
team leader while EVN will recruit local consultant to carry out these studies. Local
consultant is responsible to provide all inputs and support international consultant
implementing the assignment.

The cooperation will have the activities as follows:

Conduct the wind integration studies for Binh Thuan, Ninh Thuan area. The
simulation model of the power system and wind farms is expected. The study will not only
aim to know the actual impacts to the power system for mitigation measures but also for
inputs towards the development of Vietnam wind grid regulation in the future. The study
must include the simulation model with actual parameters. Based on the study results and
the technical manual published in March 2013, a draft Vietnam wind grid regulation will be
prepared by local consultant with the format of the government regulation. International
consultant will provide comments/review. EVN will be responsible to work with ERAV/MOIT
on promulgation of the Vietnam wind grid code. Collecting comments for the technical

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manual will be conducted in the consultation workshops. They will be helpful to prepare the
draft wind grid code.

2. Scope of work
The wind integration studies will include but not be limited to:

- Data collection for the wind integration studies: current status and development
trend of wind power in Vietnam and in the world, wind power development planning
in Vietnam and the studied area, existing and planned Vietnam power system,
operational information of power system, relevant standard, regulation & references
on wind power and power system, etc. Data includes such as generator,
transformer, transmission and distribution line parameters, load & demand as well
as other relevant data. General issues with integration of wind power to power
system including distribution system and transmission system in Vietnam and the
world.
- Establishment of the base cases: The study will perform the load flow analysis
without any power integrated into the grid for three based cases: 2013, 2020 and
2030. From the load flow results, there are to identify any issues of existing and
future condition of the grid as well as recommendation & possible solutions.
- Wind integration studies1. The studies must have steady-state and dynamic
simulation model with high accuracy parameters for three years 2013, 2020, 2030.
The boundary of studied areas for the simulation model will be specified by
consultant in the proposal, but need to cover at least 2 provinces Ninh Thuan, Binh
Thuan. The simulation model must provide sufficient inputs for developing the draft
wind grid code. The load flow analysis will be studied with wind integration. The
study is to observe the behaviour of the grid and the impact on the grid that could
lead to severe physical damage to the electrical equipments if it remains
unchecked. The study will help to identify any issues of existing and future
condition of the grid as well as recommendation & possible solutions.
The studies will calculate with scenarios but not be limited to: high load/high wind,
high load/no wind, load load/high wind, low load/no wind, N-1 analysis for critical
cases, short circuit, loss of wind generation (largest wind farms) at maximum load,
loss of wind generation (largest wind farms) at minimum load, etc.
The impact study will include but not be limited to: power flow studies, frequency
stability, voltage stability (PV and QV curves), transient analysis, fault level and
protection system studies, reliability studies, power quality studies (flicker, voltage
fluctuation, harmonic), impact of wind technology mix (type A, B, C, D), etc.
The study also need to fulfil unvalued parameters/technical criteria in the technical
manual (due to limit of the previous study) such as active power – frequency
capability requirement in section 4.3.2, active power output control for frequency
support in section 4.4.2,LVRT requirement in section 4.4.4, etc.
The studies will cover only grid-connected capacities, and not off-grid and offshore.
- Transmission capacity upgrade, reinforcement or additions. Wind resources in
Vietnam are concentrated in some specific areas, notably Ninh Thuan and Binh
Thuan provinces and the South Central Coast of Vietnam. To harness the wind
energy in these areas it is necessary to reinforce or upgrade and increase the

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EVN and national load dispatching centre are using PEE/S software for the power system modeling.

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 transmission capabilities and matching with the total wind potential. The study will
give recommendations on necessary new transmission capacity upgrade or
reinforcement and additions.
- Wind grid code: Based on results of the integration studies, the technical manual
and other relevant regulations, and considerations of international standards on
wind power interconnection, the draft wind grid code will be prepared. The draft
wind grid code must be in the government regulation format.

The expected key respective contributions of the international and local consultants are
as shown:

Items International Local consultant

consultant
Develop methodology, timeline for each component √
Prepare inception report √
Provide reference materials, inputs for the study √ √
Simulation model for the study √ √
Do the analysis, calculations, etc. √ √
Prepare the integration report √
Translate the reports from English to Vietnamese, and √
Vietnamese to English
Prepare draft wind grid code √ √
Do presentation at the kick-off meeting, consultation √ √
workshops
Do presentation at the final workshop and technical √
meeting on the technical manual

In the wind integration studies, international consultant will be the team leader. Local
consultant will provide inputs, comments and will be involved in the development of the
simulation model, including collection of inputs and converting data into an appropriate
format of the simulation model, calculation, analysis, preparation of some parts of the report.
That is also aimed at building the capacity of the local consultant. The draft Vietnam wind
grid code will be prepared by international consultant with the format of the government
regulation. Local consultant will review and revise to develop the draft final code.
International consultant will provide comments for local consultant developing the final code.
The international consultant will have three visits in Hanoi for the kick-off meeting with EVN,
ICASEA and local consultant after signing the contract and the consultation workshops for
collecting comments for the draft integration report.

3. Project milestones and deliverables

Kick off meeting with EVN and ICASEA, local consultant, international 19 November 2013
consultant
Inception report 2 December 2013
Draft report on wind integration studies 14 March 2014
Draft final report on wind integration studies 16 June 2014
Draft wind grid code 16 June 2014
First consultation workshop 2 April 2014
Second consultation workshop 25 June 2014

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Final report on wind integration studies and final draft wind grid code 21 July 2014
The dissemination workshop 27 August 2014

4. Deliverables
There are two final outputs: Wind integration studies report and draft wind grid code.
Beside two reports, the consultant must submit all editable soft files used for the studies
such us files for the simulation model, calculation (Microsoft Word, Excel, PSS/E AutoCAD,
etc.). All reports will be both in English and Vietnamese and submitted in hard copies.

5. Consultant key qualifications

i) Experience on conducting grid impact studies, planning in wind power sector.
Preference will be given to experts and organizations who have been involve
entirely or part in the establishment of wind inter-connection standards
ii) Excellent oral and written communication skills in English
6. Application
Each applicant will be required to submit the following material in English:
i) A technical proposal including methodology, approach, proposed timeline, list of
experts and proposed position, CVs of all experts, company profile, table of 10
similar assignments, etc.
ii) A financial proposal with breakdown for each activity: expertise fee for each item
(data collection, base cases, wind integration studies, wind grid code), travel and
accommodation, tax, etc. The payment schedule is required.
The templates of required documents are enclosed are for reference.
7. Address for application
Mr. Jessie Todoc – ICASEA. Email: jessie.todoc@copperalliance.asia
Mr. Huynh Hong Tan – ICASEA. Email: huynh.tan@copperalliance.asia
Mr. Vu Quang Dang – ICASEA. Email: dang.vu@copperalliance.asia
The application must be submitted to all above emails.
Only short-listed candidates will be contacted. Interviews will be conducted in person or over
telephone/email.

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 TEMPLATE OF FINANCIAL PROPOSAL BREAKDOWN

No Speciality/Function Name of Person Company/ Rate Cost

expert months Affiliation (USD/month) (USD)

I. Expertise fee F

1.1 Activity 1 A

(Data collection)

1.2 Activity 2 B

(Base cases analysis)

1.3 Activity 3 C

(Wind integration
studies)

1.4 Activity 4 D

(Wind grid code)

….. Others if had E

II. Visit costs G

II.1. Kick-off meeting L

3.1 Travel cost J

3.2 Perdiem K

II.2. Consultation workshop P

4.1 Travel cost M

4.2 Perdiem N

TOTAL COST Q

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 TEMPLATE OF COMPANY PROJECT REFERENCES
Project title 1 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD
%
Consortium
members
Description of
project
Types of services
Project title 2 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD
%
Consortium
members
Description of
project
Types of services
Project title 3 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD
%
Consortium
members
Description of
project
Types of services
Project title 4 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD
%
Consortium
members
Description of
project
Types of services
Project title 5 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD
%
Consortium
members

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Description of
project
Types of services
Project title 6 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD %
Consortium
members
Description of
project
Types of services
Project title 7 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD
%
Consortium
members
Description of
project
Types of services
Project title 8 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD
%
Consortium
members
Description of
project
Types of services
Project title 9 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD
%
Consortium
members
Description of
project
Types of services
Project title 10 Country
Name of Client Dates
(start/end)
Project value Share carried out by legal entity 100%
USD
%

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Consortium
members
Description of
project
Types of services

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 TEMPLATE OF PROPOSED LIST OF EXPERTS
Key Professional Experts Company Proposed position

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

Reference:

• CVs of proposed experts (Attachment)

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 TEMPLATE OF CURRICULUM VITAE (CV)

1. Proposed Position:

2. Name of Firm:

3. Name of Expert:

4. Current Residential Address:

Telephone No.:

Fax No.:

E-Mail Address:

5. Date of Birth: Citizenship:

6. Education:

7. Membership in Professional Associations:

8. Other Trainings:

9. Countries of Work Experience:

10. Languages [For each language indicate proficiency: excellent, good, fair, or poor in
speaking, reading, and writing]:

Language Reading Speaking Writing

11. Employment Record:

From To

Employer:

Positions held:

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12. Work Undertaken that Best Illustrates Capability to Handle the Tasks Assigned:

Name of assignment or project:

Year:

Location:

Client:

Main project features:

Positions held:

Activities performed:

Name of assignment or project:

Year:

Location:

Client:

Main project features:

Positions held:

Activities performed:

Name of assignment or project:

Year:

Location:

Client:

Main project features:

Positions held:

Activities performed:

I understand that any willful misstatement described herein may lead to my disqualification or
dismissal, if engaged.

Signature and name of expert Date: _______________

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