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Vietnam Grid Code Compliance Assessment for Power Plants

Posted on by vietnamprp
Vietnam grid code

Context and Needs

With the rapid development of renewable energy in Vietnam, particularly wind and solar power, meeting the technical requirements and grid connection regulations has increasingly become a key factor for power plants to be granted operational approval. According to the current circulars and regulations, projects with a capacity greater than 30 MW connected to the transmission or distribution grid must demonstrate full compliance with technical standards.

Key Technical Requirements

Based on the regulatory standards, renewable energy plants must demonstrate their capability in several aspects, including:

  • Reactive Power Capability – a prerequisite for maintaining voltage stability.

  • Quality of Electricity Generated – control of harmonics and voltage flicker.

  • Frequency & Voltage Disturbance Response – ability to remain stable during grid disturbances.

  • Voltage, Reactive & Active Power Control – compliance with setpoints from A0/NSMO.

  • Fault Current & Network Capability Impact – evaluation of short-circuit currents and impact on the grid.

  • Grid Connection Agreement Procedure & Execution – full compliance with grid connection processes.

  • Provision of RMS and EMT Models, Reports, Manuals – mandatory for validation and compliance verification.

Relevant clauses (Article 40, 49, 76, etc.) clearly define the requirements and legal basis.

Compliance Assessment Consulting Services

We provide comprehensive consulting services to support Investors, EPCs, and Operators in:

  • Gap Assessment: Comparing plant design and technical characteristics against regulatory requirements.

  • Model Development (RMS/EMT): Building and validating dynamic models in PSCAD/PSS®E in line with Article 49.

  • Compliance Testing & Reporting: Performing checks for frequency and voltage disturbance scenarios, LVRT/HVRT, and more.

  • Grid Connection Support: Preparing documents and reports for submission and negotiation with EVNSPC, EVNCPC, EVNNPC, NLDC/NSMO, NPT.

  • On-Site Compliance Verification: Providing experts to accompany Investors during field tests and coordination with grid operators.

Benefits for Clients

  • Regulatory Compliance Assurance: Ensures the plant is quickly approved for Commercial Operation Date (COD).

  • Reduced Operational Risks: Prevents incidents related to voltage stability, frequency control, or electricity quality non-compliance.

  • Optimized Investment Efficiency: Ensures equipment and control systems are fully utilized, avoiding costly late-stage adjustments.

  • Enhanced Credibility with Authorities: Transparent, standardized documentation that facilitates approvals with A0/NSMO and EVN/NPT.

📌 Conclusion:
Grid compliance consulting is not merely a procedural step, but a strategic solution to ensure renewable energy plants in Vietnam operate safely, reliably, and in full compliance. With a team of highly experienced experts in both RMS/EMT modeling and on-site compliance testing, we are committed to delivering peace of mind for Investors, EPCs, and NSPs throughout the entire project development and grid connection process