Mr. Dang Phan Tuong – EVNNPT’s Chairman of the Board of Directors
Vietnam Energy: In the occasion of 10th anniversary of EVNNPT, would you tell me about the
achievements on transmission grid development, ensuring the secure and reliable
power supply gained by EVNNPT up to
now?
Mr. Dang Phan Tuong: Over the last 10 years, the national power
transmission system has developed strongly on scope, with the increasing
quality and technologies. At present, EVNNPT
manages and operates 24,368 km of transmission line at 500 kV and 220 kV (of
which 7,503 km at 500 kV and 16,865 km at 220 kV), increased by 102%, 141 substations
at 500 kV, 220 kV (including 28 substations at 500 kV and 113 substations at
220 kV), with total transformer capacity of 81,288 MVA, increased by 120% on
quantity of substations and increased by 217% on total capacity compared with
those of the establishment of EVNNPT.
Regarding operation and
management, over the past years, EVNNPT
has implemented synchronously many solutions: frequent inspection and
monitoring the operation of transmission system to settle timely the occurred
failures; ensuring principles, compliance and increased quality of technical
management and operational management. Carry out strictly, check periodically,
do hygiene, maintenance, overhaul, regular repair, periodical test the
equipment to ensure a secure operation. To equip sufficiently equipment and
working tools for the labourers. Implement well the propaganda on protection of
a secure right of way. Combine closely with local polices and authorities at
all levels to protect well the power transmission grid.
Over the last 10 years, EVNNPT has carried out a secure,
uninterruped, stable operation of the national power transmission system, with
a transmitted capacity of 1,184,7 billion kWh, the average growth rate of 10.95%/year,
contributing to ensuring a sufficient power supply by EVN to the country’s
socio-economic development.
For investment in transmission
grid development, EVNNPT has
completed a huge amount of investment construction, with total investment cost
of VND 140,000 billion, put into operation 446 transmission projects, including
the significant projects such as transmission lines for evacuating capacity of
hydropower plants of Son La, Lai Chau, Power Centres of Duyen Hai, Vinh Tan,
Mong Duong, Vung Ang,... The projects to supply power to the South such as transmission
lines: 500 kV Pleiku - My Phuoc - Cau Bong, 220kV Dac Nong – Phuoc Long – Binh
Long, 500 kV Pleiku 2 substation,… The projects to ensure power supply to Hanoi
city such as 500 kV substations: Thuong Tin, Pho Noi, Dong Anh, 220 kV substations
of: Thanh Cong, Van Tri, Son Tay, Dong Anh, Long Bien, West Hanoi; 500/220 kV
transmission lines: Hiep Hoa - Dong Anh - Bac Ninh 2, 220 kV transmission lines: Ha Dong - Thanh Cong,
Soc Son - Van Tri - Chem, Hoa Binh – West Hanoi,… Ensure the power supply to Ho
Chi Minh city: 500 kV substations: Cau Bong, 220 kV substations: Duc Hoa, 220 kV transmission lines: Cau Bong -
Duc Hoa, Cau Bong - Hoc Mon – branch to Binh Tan... and many other new
constrction projects as well as projects on upgrading capacity of transmission
lines and substations to ensure the power supply to the focal economic areas of
the country.
Up to now, the national power
transmission system has reached all the provinces and cities and interconnected
to the transmission utilities of countries; China, Laos, Cambodia, with modern
technologoes such as multi-circuit, multi- voltage level transmission lines,
220kV underground cable, 220kV GIS substations, unmanned substations,
computerized control systems, failure locator, online oil monitoring sýtem,
SCADA… The national power transmission system has ensured the role as a “backbone” in the power system.
Due to the significant role,
Prime Minister has issued a Decision No. 1944/QĐ-TTg dated 04/12/2017 on
putting the 500kV power transmission system into the list of significant
projects of national security. The national power transmission system has a
500kV ring circuit to strengthen the stability, reliability in power supply in
the Northern areas (Thuong Tin - Pho Noi - Quang Ninh - Hiep Hoa - Son La - Hoa
Binh - Nho Quan - Thuong Tin) and the Southern areas (Nha Be - Phu Lam - Cau Bong
- Tan Dinh - Song May - Phu My - Nha Be). There has been an connection between
the South Eastern transmission and the South Western transmission at 500kV
voltage level (the 500 kV Phu Lam - O Mon transmission line).
Especially, the 500kV North-South
transmission system, circuit 1, circuit 2, the 500 kV Pleiku - My Phuoc - Cau Bong
and the 500kV substations of the route have the significant role in ensuring
the power supply to the South, over the past years and in coming years, in the
contexts that the Southern power generation is not in the right schedules.
EVNNPT leaders were checking the transmission projects evacuating
capacity of Vinh Tan Power Centre.
Vietnam Energy: With the role in ensuring a secure and
reliable power transmission for production and social livings, can you reveal
your methods that the transmission grid meets the N-1 criteria and N-2 criteria
in some focal areas by 2020 as expected?
Mr. Dang Phan Tuong: According to Decision No. 428/QĐ-TTg dated
18/3/2016 by Prime Minister on approving the revised National Power Development
Plan in period 2011-2020, with consideration to 2030 (the revised Master Plan 7-
MP7), the list of investment transmission projects in period 2016 - 2020 attached
to revised MP7 were made in principle: "Construct and upgrade the power
transmission grid, step by step meet the technical standards of power
transmission grid; by 2020, the transmission grid will meet N-1 standard for
the main equipment and ensure the quality standards as regulated ".
Annually, EVNNPT concentrates on construction investment of projects in the
revised MP7, with a concrete implementation of construction investment plan of
power transmission grid of next year and subsequent year approved by Ministry
of Industry and Trade and the annual construction investment plan assigned by
EVN. EVNNPT tries to complete projects
in the revised MP7, which are to be energized by 2020 in order to complete the
target that National power transmission system meets N-1 standard by 2020 as
set out in the revised MP7.
Besides, EVNNPT has set up project "power transmission grid investment
program meets N-1 standard in period 2018 - 2020". In which, the list of
investment projects meeting N-1 criteria for the whole system and N-2 criteria
for some focal areas such as Hanoi and Ho Chi Minh cities by 2020 has been
prepared. At present, EVNNPT has
submitted it to the relevant agencies for approval, which will be basis for our
implementation.
Vietnam Energy: Would you inform about the solutions and
orientations for power transmission grid development on the “smart grid basis"?
Mr. Dang Phan Tuong: The application of new science and
technologies are always given with high attention by EVNNPT in order to increase the production efficiency. In the coming
years, EVNNPT will push up the
application of new technologies, advanced technologies which are relevant to
the ongoing 4th Industrial revolution.
We have set up and implemented a
Smart Grid project in order to modernize the power transmission system,
increase the reliability, efficiency in operation of power transmission grid,
reduce power loss and increase labour productivity.
To gain the above targets, EVNNPT has been implementing the followings
solutions:
Firstly, to increase the
stability of power transmission grid, stabilize voltage and balance the
reactive power, including projects on installing SVC, FACTs, WAMS, DLR, short-circuit
current limitation,...
Secondly: Increase the
capabilities in monitoring and remote control: unmanned substations, automation
of substations, metter collection system, online oil monitoring system,...
Thirdly: To increase the
transmission efficiency: including projects on Geographical Information System
(GIS), fault location system, lightening monitoring and warning system,
unmmaned antene vehicles (UAV), helicopters in maintenance and repair,
patrolling the transmission line routes and substations,...
Forthly: To provide training for
technical staff to be equiped with the knowledge on new technologies of smart
grid.
Orientations on formulation of a
smart grid:
In period 2018 - 2020, to carry
out solutions to create a smart transmission system.
In period 2021 - 2025, to carry
out solutions to complete the smart transmission system.
In period 2026 - 2030, with
vision to year 2040, to carry out solutions to develop the smart transmission
system, linking with application of technologies in self-recovering the power
system.
Vietnam Energy: At forecast, at present and in the coming 4 –
5 years, the power generation projects in the South are facing and will face
with many difficulties, being behind scheduled, causing an unballance in pwer
supply-demand and a power shortage in the South. Would you reveal which
solutions have been applied by EVNNPT
to overcome these difficulties in order to have a secure power supply?
Mr. Dang Phan Tuong: To ensure the power supply to the South
from now to 2020 and the coming years when the generation projects were behind schedules,
EVNNPT is promptly carrying out the
transmission projects to evacuate capacity of the Southern generation plants
and increase capacity of the North-South transmission grid, concretely:
Firstly: For transmission
projects synchronized with the generation projects in the South:
The Projects synchronized with
Long Phu Power centre: The 500 kV Long Phu - O Mon thermal power and the 220kV
transmission lines of Long Phu Power Centre - Can Tho - Tra Noc and Long Phu
Power Centre – Soc Trang.
The Projects synchronized with
Vinh Tan Power centre: to ensure evacuate full capacity of Vinh Tan Power
Centre when putting Vinh Tan Thermal Power Plant 1, 4 into operation, EVNNPT is focusing on implementing the
500kV transmission line projects: Vinh Tan - Song May - Tan Uyen, Song May - Tan
Uyen and 500kV Tan Uyen substation.
The Projects synchronized with
Song Hau Power centre: EVNNPT is
carrying out the projects: 500kV Song Hau – Duc Hoa transmission line and 500kV
Duc Hoa substation, it is expected that capacity of Song Hau Power Centre will
be evacuated to the national power system.
Secondely: For the projects on
upgrading capacity on North-South transmission:
EVNNPT is implementing urgently the 3rd circuit 500kV
transmission line projects (Vung Ang - Quang Trach - Doc Soi - Pleiku 2) to
increase transmission capacity from the North to the South. This is an
important project to ensure the power supply to the South from now to 2020 and
the subsequent years in the contexts that the Southern generation is behind
schedules. The projects will be started by quarter III /2018.
The 2nd circuit 220 kV Dogn Hoi –
Dong Ha – Hue transmission line: EVNNPT is
pushing up progress of projects to complete and put into operation by Quarter
3/2018.
Thirdly: for the projects to strengthen
the power supply to the South:
At present, EVNNPT is implementing projects as
planned to increase the power supply to the South, including 500kV Long Thanh,
Chon Thanh, Cu Chi substations; upgrade capacity of the 500kV substations: Tan
Dinh, Nha Be, My Tho, O Mon; the 500kV transmission lines: Chon Thanh – Duc
Hoa, My Tho – Duc Hoa and the new constructed projects and upgrading capacity
of the 500kV and 220kV transmission line and substations projects to meet the
load growth demand of the provinces and cities in the South.
Vietnam Energy: I know that EVNNPT is in the process of establishing “EVNNPT Development Strategy to 2025, with vision to 2040”. Can you
share its overview?
Mr. Dang Phan Tuong: We have set up and are now implementing
the EVNNPT Development Strategy to
2025, with vision to 2040, with some main points:
Sustainable development of power
transmission; power transmission must be 1 step ahead to meet requirement on
ensuring a secure, uninterrupted, stable power transmssion to the socio-economic,
political, national defense activities and power market of Vietnam.
Push up the modernization of
power transmission in all activities from operation management, repair and
maintenance, development investment, enterprise administration; to be ready to
meet the requirement on development of the power market. Upgrage and develop
the power transmission system to ensure capability in evacuating capacity from
the large scale renewable energy resources, increase the power grid security
and quality of power transmission services.
To push up the application of the
scientific achievements of the 4th industrial revolution in all fields:
construction, management, oepration of power transmission system, power
transmission services, enterprise administration,…
To mobilize the full resources in
and out of EVNNPT to ensure a secure,
uninterrupted, stable power transmisison, with good quality and reliability in
power supply, ensuring the economic criteria.
To develop power transmission in
adaptation with the climate change, ensuring a sustainable development and
suitable to the national strategy on a green development.
The strategic objectives are to
develop EVNNPT to become one of top 4
transmission utilities in ASEAN by 2020, become the top utilities in Asia by 2025
and reach the world advanced knowledge in power transmission by 2030.
To reach the strategic
objectives, we have to focus on synchronous implemention of many solutions in
various fields: construction investment, operation management, application of
science, technologies; organization of structure, human resources development
and enterprise administration; finance and capital mobilization; propagada,
community relations and international relations; environment protection and
response to the climate changes.
Vietnam Energy: In the context that transmission tariff is
still low; insufficient fund for investment, could you tell me what are your
methods to overcome the difficulties, mobilize fund for investment, imrpove and
develop transmission grid, ensuring the EVNNPT
functions and mandate?
Mr. Dang Phan Tuong: To mobilize sufficient fund for
construction investment, apart from borrowing domestic commercial credit, ODA,
EVNNPT have been implementing many
solutions on fund arrangement such as non-sovereignty guarantee fund, working
with the domestic and international fiancial organizations to mobilize fund in
new methods: un-tied loan, export credit fund, non-sovereignty guarantee fund,
preparation for issuing national and international bond,…
EVNNPT regularly monitor progress of generation projects, the
load growth demands in the areas where projects will be implemented in order to
make arrangement, revision of priority of investment projects, which facilitate
the fund arrangement.
Vietnam Energy: In transmission investment, one of the biggest
difficulties is to arrange land for substations and compensation, site
clearance of the right of way. Could you reveal which methods are often applied
by EVNNPT to coordinate with the
local authorities and people to ensure that projects are in schedules?
Mr. Dang Phan Tuong: The biggest diffuculties have caused delay of
investment project are the compensation and site clearance. To settle these
issues, the applied solutions include:
Firstly: To set up a close relation
between EVNNPT, project management
board and local authorities where the project runs through. Assign the capable
and experienced staff to be on the site, actively coordinate with Compensation
Council, Land Fund Developmehnt Centre; the Associations and organization at
district, commune levels come to each household to explain the policies,
regulations on compensation, site clearance. Besides, pursuade the affected
households, organizations to support and accept with the compensation options
approved by the competent levels, to recommend the higher levels to settle
timely the constraints to create favourable conditions for the contractors to
implement project as schedules.
Secondly: To regularly report EVN
the difficulties to get instruction and support in working with provincial
People’s Committee for a timely settlement. In some special cases, to recommend
EVN to report to Ministry of Industry of Trade, Prime Minister to have official
request to the Provincial People’s Committee to pay attention to and support
EVNNPT in the site clearance and
compensation.
Thirdly: Active coordinate with
the press agencies, propaganda agencies at local level to provide information
on investment plan, implementation of projects, the policies related to
compensation and site clearance. Besides, organize a wide propaganda to the
local people to get their objective understanding and acceptance among local
people, which are helpful for implementation of projects.
Vietnam Energy: Thank you. Celebrating the 10th anniversary of
EVNNPT, Veitnam Energy would like to
send the best wishes to generations of EVNNPT’s
leaders and staff who have made high efforts, over the past 10 years, in
overcoming difficulties and challenges, contributing to set up a strong and
sustainable brand name of EVNNPT.