110kV LEGO Substation and Connecting Transmission Line
The Long Thanh 1 Solar Power Plant is located in Sub-zone 152, Ia Lop Commune, Ea Sup District, Dak Lak Province. The project was approved for investment by the Dak Lak Provincial People’s Committee in early 2018, with the goal of harnessing solar energy to contribute to the national power grid and promote the development of renewable energy in the Central Highlands region.
The plant has an installed capacity of 50 MWp and a total investment of approximately VND 1,252 billion. The project is developed by Long Thanh Dak Lak 1 Investment Co., Ltd., serving as the investor. The plant was successfully energized and put into operation on June 20, 2019.
The project aims not only to generate “green” electricity but also to support local economic development, create jobs, and promote the application of renewable energy technologies in the Central Highlands region.
Scale & Land Use
Although the designed capacity is 50 MWp, various sources indicate that the project occupies an area of approximately 60 hectares. The solar panels are strategically installed and interconnected through a power collection system, which channels electricity to a step-up substation before feeding into the national power grid.
Technology & Operations
The plant employs standard photovoltaic (PV) technology, using:
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PV modules (solar panels)
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Inverters to convert DC to AC
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Transformers for voltage conversion
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Grid synchronization systems
Invested and built with the aim of generating clean energy, the project contributes to reducing CO₂ emissions and supports Vietnam's sustainable energy goals.
During operation, PCC5 implements regular maintenance activities such as:
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Monitoring the PV system
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Cleaning modules
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Inverter maintenance
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Performance tracking
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Safety inspections
These ensure stable operation and high efficiency of the plant.
Role & Significance of the Project
Long Thanh 1 Solar Power Plant holds technical, environmental, and socio-economic importance:
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Technical / Energy:
Generates electricity from renewable sources, reduces reliance on traditional power systems, and helps balance supply and demand in the Central Highlands region. -
Environmental:
Helps reduce greenhouse gas emissions, mitigates pollution, and minimizes reliance on fossil fuels. -
Economic & Social:
Creates local employment opportunities during construction and operation, and attracts investment into the clean energy sector. -
Policy & Planning:
The project serves as a pilot case in handling legal, land-use, irrigation, and technological planning challenges — providing valuable lessons for renewable energy deployment in areas with specialized zoning requirements.