Outline of power sector in Viet Nam hrydropower potential and development plan ppsx

Luong Van Dai
Director of the Department for Project Appaisal
Vietnam Electricity Group (EVN)
(Presentation at the “HYDRO 2007” in Grenada (Spain))
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Vietnam
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1. Outlines of Power Sector in Vietnam
2. Power Demand and Power Generation Development
Plan
3. Hydropower Potential in Viet Nam
4. Power Plants in Operation and Under Construction
commissioned in the period of 2010-2015
5. Orientation of Power Grid Interconnection between
Vietnam and Neighbouring Countries
6. Orientation of Capital Mobilization Methods
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Electricity of Vietnam (EVN)
- a State-owned enterprise, founded in 1994;
- in June of 2006: became Vietnam Electricity, one
of the top ten of the biggest enterprises in Vietnam
- Responsibility:
- Power supply for the national economic
development
- Functions:
- Construction investment,
- Production and trading of power energy,
- Telecommunications, financing, banking
a. Functions and Responsibilities:
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Operation Model: EVN is operating in the

form of parent and subsidiary, in which parent
company not only directly implement power
production and trading but also financing subsidiary
and joint-venture companies, and new fields of
business.
Parent Company – EVN: in charge of strategic
decision making and critical orientations of EVN on
financing development of power projects,
technologies, sciences and others, and planning
long-term business and production and investment
of EVN and subsidiary companies, and financing
subsidiary companies and other enterprises, and
organizing administrative mechanism and
developing human resources of EVN and its
subsidiary companies.
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b. Organizing Structure of EVN
Parent Company – EVN:
Including: Administration of Vietnam Electricity, National Load Dispatching Center,
Power and Civil Project Management Boards,
Electricity Information Center, Large Power Plants.
Subsidiary Companies
EVN holds 100% of charter
capital of these companies
which operate in the large-
scaled fields of power
production, transmission, trade,
telecommunication and finance
-EVN holds over 50% of charter
capital of these companies

which operate in medium-scaled
fields of power production and
trade, information technology,
mechanics, consultation and
others.
Joint-venture
Companies
Companies of EVN
hold less 50% of
charter capital of
joint-venture ones
which operate in
power production,
banking, real estate
and others.
Administrative Units
Including:
Institute of Energy,
University of
Electricity and three
Electricity Colleges
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19 Thermal and
Hydropower
Plants
19 Thermal and
Hydropower
Plants
11 Power
Companies

11 Power
Companies
15 Project
Management
Boards of
Generation, Networks,
Civil Construction
15 Project
Management
Boards of
Generation, Networks,
Civil Construction
4 Electricity
Mechanics
Companies
4 Electricity
Mechanics
Companies
4Power
Transmission
Companies
4 Power
Transmission
Companies
4Power
Engineering
Consulting
Companies
4 Power
Engineering

Consulting
Companies
1 Electricity
Telecommunication
Company
1 Electricity
Telecommunication
Company
1 Center for
Electricity
Information
1 Center for
Electricity
Information
1 Information
Technology
Center
1 Information
Technology
Center
National
Load
Dispatching
Center
National
Load
Dispatching
Center
1 Institute
of Energy

1 Institute
of Energy
1 University
of Electricity,
3 College of
Electricity
1 University
of Electricity,
3 College of
Electricity
EVN
84,000 persons
EVN
84,000 persons
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c. Existing Power Generation and Transmission Networks
By late 2006, Total Capacity of all existing Power Plants in Vietnam is 11717MW,
By generation
38%
18%
40%
4%
Hydropower
Coal-fired
Thermal Power
Gas Thermal
Power
Diezen, and
others
Transmission Networks:

- 500KV: 2469km
- 220KV: 4795km
- 66KV-110KV: 9819km
9278,
79%
2439,
21%
EVN
external
EVN
Rate of Power Supply
- 64/64, provinces
- 100%, districts
- 96%, communes
- 91.5%, household
Power energy produced in 2006: 60.6 bil. kwh,
Commercial electricity: 51,5 bil. kwh.
Average: 600kwh/capita/year
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23001200550
E
o commoercial
(kwh/capita/year)
22310745,6E
commercial
(Billion kwh)
25712453,5E
Produced
(Billion kwh)
60000-

70000
25857-
27000
11286N
lm
(MW)
201520102005Year
Growth Rate 18-20%
Period 2005-2010, Annual Average Increase, upper 3000MW
Period 2010-2015, Annual Average Increase, some of 7000MW
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17%22%28-33%38-40%36,5%
Percentage of
Hydropower in
the Whole
Power System
305482414819874102114198Hydropower
181.000112.000
60.000-
70.000
25857-
27000
11286Total N
lm
(MW)
20252020201520102005Year
Percentage of Hydropower in the Whole Power System
* Above-mentioned Capacity of Hydropower is included Pumped Storage Power
Plants (4800MW to the year 2025) + power imported from Lao and Cambodia.
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Features of Geography and Meteo-hydrology
Gross area of Vietnam is S = 331.000km
2
, in which 4/5 of this
is mountainous areas and highlands.
Vietnam is S-shaped, length of 1630km prolonging from the
North to South. Largest width of the North and South is 600km
and 370km, respectively, while it is narrowest in the Central part
of Vietnam, Quang Binh province (Dong Hoi provincial town),
as of 50km.
Vietnam is located in the tropical monsoon area, hot and humid,
with large amount of rainfall. Average Annual Rainfall is some
of 2,000 mm, in which highest and lowest one is 4,000-
5,000mm and 1,000mm, respectively. In general, rainy season
lasts from 3 - 5 months but unevenly distributed in term of
spacial aspect.
River network of Vietnam is densely presented in which 2,400
rivers are longer than 10km. Almost all rivers in Vietnam flow
into the East Sea.
Gross Run-off Volume is 870 bil. m3/year, presented as Annual
Average Discharge as of 37,500 m3/s
.
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- Theoretical Potential: about 300 bil. kWh (only
accounting for rivers with length of over 10km).
- Technical Potential: about 123 bil. kWh, referred
to as Installed Capacity of 31,000 MW.
- Technical-Economic Potential is identified as
some of 75-80 bil. kWh, equivalent to capacity as
18,000-20,000MW.

By the year 2006, Total Capacity of Existing
Hydropower Plants in Vietnam is 4460 MW
which is considered as 18 bil. kWh of Average
Annual Energy Production. It has been, therefore,
over 20% of technical-economic potential
exploited.
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Power Energy Potential of Medium and Small
Scaled Hydropower Projects lower 30MW.
Total Technical-Economic Potential of Hydropower
Projects ≤ 30MW, some of 300 projects, is in the
range of 2,500-3,000 MW, referred to as 10 bil. kWh
of Average Annual Energy Production.
Power Energy Potential of Pumped Storage Power
Projects: 10 of Pumped Storage Power Projects, total
capacity of 10,000MW, has been identified viable in
term of Technical-Economic aspect (i.e in Sonla
province: 7 projects, Hoa Bình: 1, Ninh Thuan: 1 and
in Binh Thuan province: 1 project). Pre-feasibility
Report of 2 projects, 1 in Sonla and the other in Ninh
Thuan, has been prepared.
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b- EVN has been conducting
construction of projects > 30MW ,
which total capacity is 6,500MW,
to commission in 2010
At the present, 19 projects
invested by EVN are under
construction.
In which Sonla hydropower plant,

2,400 MW, is the biggest one in the
South East Asian. The first and
second units are planned to
commission by late 2010 and
project completion in late 2012.
1
2
3
4
5
9
8
6
7
Huoi
Quang
Son La
Ban Chat
Ban Ve
Song Tranh 2
A Vuong
Se San 4
Plei Krong
Dong Nai 4
Dong Nai 3
Tuyen
Quang
Dai Ninh
Srepok3
BuonKuop

BuonTuaSah
Song Ba Ha
Kanak Ankhe
Quang Tri
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320
220
520
2400
342
Installed
Capacity
(MW)
Nghe An
Lai Chau
Son La
Son La
Tuyen
Quang
Province
5
4
3
2
1
136RDF
Ban Ve
104RCC
Ban
Chat

130CGD
Huoi
Quang
138RCC
Son La
93RDF
Tuyen
Quang
Dam
Height
(m)
Dam typePower Plant
(RCC: Roller-Compacted Concrete; RDF: Rockfill Dam with Facing; ED: Earth
Dam; RDC: Rockfill Dam with Center Core Wall, CGD: Concrete Gravity Dam)
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330
220
210
190
64
Capacity
(MW)
Gia Lai
Phu Yen
Quang
Nam
Quang
Nam
Quang Tri
Province

10
9
8
7
6
74RCC
Se San 4
60ED
Song
Ba Ha
82RCC
A Vuong
95RCC
Song
Tranh 2
75RDF
Quang
Tri
Dam
Height
(m)
Dam typePower Plant
300
270
240
110
173
Capacity
(MW)
Lam Dong

Lam Dong
Lam Dong
Kon Tum
Gia Lai
Province
15
14
13
12
11
50RDC
Dai Ninh
128RCC
Dong Nai 4
100RCC
Dong Nai 3
71RCC
Pkeikrong
64RDF
An Khe-
Kanak
Dam
Height
(m)
Dam typePower Plant
(RCC: Roller-Compacted Concrete; RDF: Rockfill Dam with Facing)
220
280
86
33

Capacity
(MW)
Daklak
Daklak
Daklak
Binh Thuan
Province
19
18
17
16
60RDC
Srepok3
30ED
Buon
Kuop
85RDC
Buon
TuaSarh
25ED
Bac
Binh
Dam
Height
(m)
Dam typePower Plant
(RCC: Roller-Compacted Concrete; RDF: Rockfill Dam with Facing;
ED: Earth Dam; RDC: Rockfill Dam with Center Core Wall)
100Quang
Nam

Song Bung 23
Installed
Capacity
(MW)
ProvinceProjectNo.
7
6
5
4
2
1
60Gia laiSe San 4a
90Nghe AnKhe Bo
60Quang
Nam
Song Bung 5
145Quang
Nam
Song Bung 4
250Thanh
Hoa
Trung Son
1200Lai ChauLai Chau
c. Pre-investment of planned projects (i.e total capacity of
approximately 2,000MW) is conducting by EVN to commission in
2015.
1
2
3
4

5
9
8
6
7
6
2
3
7
4
5
1
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d. Pumped Storage Power Plants, EVN: These planned projects, total
capacity of 4,800MW, will be commissioned in the period 2018-2022.
e- Hydropower Plants, N >30MW: these will be invested by local units in
the form of BOT and IPP, and planned commissioning as follows:
- Period 2006 – 2010 : 920MW
- Period 2011 – 2015 : 3100MW
- Period 2016 – 2020 : 1000MW
g- Small-scaled Hydropower Plants:
1,000 MW from small-scaled hydropower projects (i.e projects <30MW) will
be generated in the period 2006- 2010, about 500 MW in 2011-2015 and
1,000 MW in 2016-2020.
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- Interconnecting with Lao:
Immediate projection is that hydropower plants of Lao
such as Nam Mo (100 MW) will be interconnected with
Vietnam via transmission line 220 KV running through A
Vuong HPP to Da Nang city.

In Power Development Plan No. 6, an amount of
1,000MW will be imported from Lao up to the year 2010
and an increase of 2,000MW beyond 2010 via 2
directions as follows:
+ The first direction: from Central of Lao( Nam Thueon
2, 688MW) to Ha Tinh province.
+ The second direction: from the South of Lao( Ban Sok),
Sekaman 1, Se Kong 4, 5 and Nam Kong, total capacity
of up to 1,600MW to Pleiku (Gia Lai).
Due to the delay of proposed development plans of
hydropower projects in Lao, construction of planned
transmission line 500kV will be backward 2010.
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Interconnecting with Cambodia
+ In the period 2008 – 2010: Vietnam will provide
Cambodia with 150-200MW via transmission line
220KV from Cuu Long River Delta (i.e proposed
from transformer station 220KV, Thot Not)
running through Chau Doc and Ta Keo to Phnom
Penh.
+ In the period 2010 – 2015: proposed
construction of hydropower projects as Lower Se
San 2 (430MW) and Se San 1 & Se San 5
(100MW) will be implemented and transmitted to
the North of Ho Chi Minh city and transformer
station Pleiku, respectively.
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Interconnecting with Van Nam province of
China
+ It is planned that 250 -300 MW will be imported

via transmission line 220KV Lao Cai – Yen Bai -
Viet Tri in 2006.
+ In the middle of 2007, 200MW will be imported
to Ha Giang - Thai Nguyen.
+ Possibility of electricity importation 1,500MW in
the period of 2006-2018 via transmission line
500KV is considering to connect transformer
station 500/220KV Hong He (Hong Ha – Van
Nam province) with the one of Soc Son.
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Average Investment Capital for itself EVN in the period of 2006- 2015 is
USD 4 billion per year, orientation of capital mobilization methods are as
follows:
- Privatization of Power Plants and Power Companies.
- Domestic Credit and Bond issue.
- International Credit and Diversification of Different Financing Sources.
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