However, the development of RTS on a large scale also brings with it hightened requirement for effective RTS monitoring and control to ensure power system reliability and security. Integration of rooftop solar power (RTS), if done without proper control, can pose various risks and challenges to the operation of current power system, some of which include:
• Lack of visibility and controlability: Grid operators often lack real-time visibility and controllability of RTS generation, making it harder to analyze and manage grid behavior.
• Power imbalance – Duck curve: RTS causes changes in load patterns, leading to challenges in power balance, ramp up and ramp down capabilities of conventional power plants.
• Cyber security concerns: Cyberattacks via cloud services of inverter manufacturers that disrupt RTS systems partially or entirely could cause regional or national blackouts.

Recognizing the potential challenges, Vietnam has included tightened requirements for the monitoring and control of these RTS in recent policies encouraging the safe development of Rooftop solar power with regards to power system’s safety and security. Notable policies that RTS investors in 2025 should take note of includes:
• Decree 135/2024/ND-CP on mechanism for RTS development
o Self-generated and self-consumed RTS systems are encouraged.
o Excess power from a RTS can be sold to EVN at no more than 20% of its installed capacity.
o RTS systems ≥ 100kW must be equipped with monitoring and control devices connected to Power Companies’ SCADA.

• Decision 1570/QD-EVN on technical requirements for RTS control and monitoring
o Compliant with requirements for monitoring, control, data list, data exchange functions.
o Communication protocols: Modbus TCP, IEC60870-5-104, IEC62056.
o Telecommunication channels: 3G/4G/5G, Internet, …
o Cyber security: TLS, OpenVPN/IPSec protocols. Prohibiting control access via cloud services.

With over 25 years of experience as a leading developer and provider of solutions for power system in Vietnam, ATS’s Rooftop Solar Power Control & Monitoring solutions are developed with consideration for compatibility with Vietnam’s power system and regulatory compliance. Developed and fine-tuned through 4GW of renewable energy project executed, our comprehensive solution for RTS is not only fully compliant with above-mentioned regulatory requirement but also facilitate optimization of system operation, meeting current operational needs while also ready for future expansion.

Contact us today for consultation on suitable control & monitoring solutions for Your Rooftop Solar Power projects!

The post Vietnam Policies Encourage Safe Development of Rooftop Solar Power appeared first on ATS JSC.

The 500kV Van Phong substation and connection is one of Vietnam’s key infrastructure projects with a total investment of nearly 1,100 billion VND. The project scope includes the installation of two new 900 MVA transformers, six 500 kV feeders, thirteen 220kV feeders, and a 26.1km-long 220kV transmission line. The integrated protection & control system of 500kV Van Phong substation applies ATS’s Substation Automation Solution @Station®, with ATS being the responsible for providing the completed secondary system, communication & SCADA and services related techniques for the said project.

Once in operation, the project is expected to ensure safe and continuous power supply for Khanh Hoa and neighboring provinces, serving socio-economic development needs of key economic regions of Vietnam’s South-Central coast. The new substation will aid to improve Vietnam power system’s stability, ensuring reliability and safety of the power supply.

500kV Van Phong Substation sucessfully energized 27 days ahead of schedule

ATS engineers participating in the project

Configuration and testing of ATS’s Substation Automation System @Station® applied for 500kV Van Phong substation

Testing of SEL relays-integrated control & protection panels supplied by ATS before commissioning

Testing and commissioning of 500kV Van Phong substation project with EVN authorities

Overview 500kV Van Phong Substation sites (Source: EVN)

Overview 500kV Van Phong Substation sites (Source: EVN)

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More on the project: https://baochinhphu.vn/du-an-tram-bien-ap-500-kv-van-phong-va-dau-noi-ve-dich-som-102221128140259114.htm

The post Successful Energization of 500kV Van Phong Substation Ahead of Schedule appeared first on ATS JSC.

• To optimize the operation efficiency and reliability of such a large-scale project, Loc Ninh 1-2-3 Power Plants apply ATS’s comprehensive solutions for the monitoring, control, and protection for the entire facility, including:
  Substation Automation System @Station®
• Solar Power Plant Control & Monitoring and Generation Forecast (PV SCADA & PPC)
• Centralized Operations Control Centre @OCC™

ATS’s scope for the project covered an end-to-end package from design, supply, installation, testing, training to relevant services required for COD-related procedures and operations, all completed within a tight timeline.

The post [Project Showcase] Loc Ninh 1-2-3 Solar Power Plants (550MWp) appeared first on ATS JSC.

With Vietnam’s strong commitment to reaching net-zero emissions by 2050 at the UN Climate Change Conference (COP26), the country needs to build a sustainable energy transition, in which the transformation of energy infrastructure including smart grid plays an important role. To enable the progress, the SGREEE project has proposed amendments to the legal framework on relevant issues, while also developing the capacity of stakeholders to use new technologies and ensure investment funds are used effectively. SGREEE has focused on the integration of renewable energy into the power grid, an important first step towards transition away from fossil fuels. After 05 years, the project has achieved various key objectives in 03 action areas, namely: Legal and Regulatory Framework, Capacity Development and Technology Cooperation.

Participating in “Technology Cooperation” phase, ATS is honored to have our Distributed Energy Resources Management solution deployed in SGREEE pilot project for remote monitoring and control of rooftop solar farms. The result of laboratory and field tests on the system has demonstrated Vietnam’s technological capabilities in meeting the need of power companies as well as power control centres in remote monitoring, control and forecast on large number of distributed renewable energy sources, ensuring Vietnam’s power system operation reliability.

Mr. Markus Bissel, SGREEE’s Project Director, informed: “SGREEE has succeeded in bringing Vietnam’s technical personnel closer to international standards in the field of a modern power grid regulator. The project also supported ERAV in reviewing the regulations for Smart Grids. Among them, the contributions to the revision of the Smart Grid Roadmap – the central document for the development of Smart Grids in Viet Nam – were forward-looking”.

Video Source: GIZ Energy Support Programme Viet Nam

Information Source: GIZ Energy Support Programme Fanpage

The post Smart Grids for Renewable Energy and Energy Efficiency Project (SGREEE): 05 Years Supporting Vietnam’s Transition towards Sustainable Energy appeared first on ATS JSC.