Urgently bringing grid electricity to Con Dao
As forecasted by the Ministry of Industry and Trade, by 2035, Con Dao district will need more than 90MW, and by 2045 it will need more than 114MW of electricity. However, Con Dao is currently powered by a diesel power plant with a total capacity of 11,820 kW, mainly meeting the daily needs of people and partly serving businesses and production of businesses in the district. Therefore, the need to invest in building electricity supply infrastructure for Con Dao becomes urgent.
Commission for Management of State Capital at Enterprises, Ba Ria - Vung Tau province, and EVN work on power supply project for Con Dao in March 2024. Photo: EVNEIC
The project has a total investment cost of more than VND 4,923 billion, funded by the state budget and EVN’s financial resources. The project is expected to be energized in the fourth quarter of 2025. The project’s objective is to provide stable and safe electricity to Con Dao island, meeting the development goals of Con Dao district, Ba Ria - Vung Tau province, and ensuring national security, defense, national sea, and island sovereignty.
Overcoming difficulties in bringing electricity to the island
The project construction duration is only about 18 months, while the huge workload requires great effort from Power Project Management Board 3 (EVNPMB3), the unit assigned by EVN to represent the investors and related organizations.
Specifically, the Project is composed of the following items: construction of a 110kV overhead line; construction of 110kV submarine cable across the sea; construction of underground cables on the island; construction of a 110kV GIS substation on the island... Notably is the investment in the construction of a 110kV underground cable across the sea with a length of 77.7km, and about 8.5km underground cable on the island.
Leaders of Ministry of Industry and Trade and EVN delegation survey project site in Soc Trang province, March 2024. Photo: EVNEIC
In fact, grid-connected electricity supply via submarine cables across the sea has the advantage of securing electricity supply in an uninterrupted, stable, and long-term manner according to the peak demand of the island in each stage of development. Construction of submarine cables will also take up less land area on the island; not considerably affect residential areas and general planning on the island; not cause negative impacts on the environment and surrounding landscape.
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Project of grid-connected electricity supply for Con Dao district, Ba Ria - Vung Tau province:
• Project owner: Vietnam Electricity (EVN)
• Project owner’s representative: Power Project Management Board 3 (EVNPMB3)
• Total investment cost: VND 4,923.51; of which: financial support from the central state budget is about VND 2,526.16 billion; The rest is financed by EVN's financial resources.
• Main milestones:
+ Project approval: July 2024;
+ Project COD: 4th quarter, 2025;
+ Finalizing investment, completing settlement: 2026.
• Project investment scale:
+ Expanding 01 110kV feeder at Vinh Chau 220kV substation;
+ Construction of a single circuit 110kV overhead line, from the expanded 110kV bay at Vinh Chau 220kV substation to the transition point to the underground cable, about 17.5 km long;
+ Construction of a single circuit 110kV submarine cable, from the transition point down to the submarine cable to the landing point in Con Dao, about 77.7km long;
+ Construction of a single circuit 110kV underground cable, from the landing point in Con Dao to the 110kV bus bar of Con Dao GIS substation, about 8.5km long;
+ Construction of a new 110kV GIS substation Con Dao, 2x63MVA (in this phase, installing 01 63MVA transformer, and reserving a land area for installing the second transformer in the future).
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