Battery Energy Storage Systems in Viet Nam: Market Outlook, Policy Challenges and Business Opportunities

I. Market Potential and Demand Outlook

1. Power System Transformation and Operational Challenges

Viet Nam’s power system is undergoing a rapid transition from conventional generation sources to a higher share of renewable energy. With solar and wind power now accounting for approximately 27% of the country’s installed capacity (over 23 GW), the electricity system faces increasing operational challenges, including midday oversupply and evening peak shortages.

Against this backdrop, Battery Energy Storage Systems (BESS) are becoming an increasingly important component of the power system. By storing surplus renewable electricity and supplying it during periods of high demand, BESS helps improve grid flexibility, enhance system reliability, reduce renewable energy curtailment, and support Viet Nam’s long-term energy transition.

2. Market Outlook under the Revised Power Development Plan VIII

According to the Vietnam Energy Association (VEA), Viet Nam’s BESS market is poised for rapid growth, driven by the strategic direction set out in the Revised Power Development Plan VIII. The plan targets 10–16.3 GW of battery energy storage capacity by 2030, equivalent to 5.5–6.9% of the country’s total installed generation capacity. Looking ahead to 2050, total BESS capacity is projected to reach around 90–96 GW, creating a multi-billion-dollar market.

Assessments by Vietnam Electricity (EVN) and the National System and Market Operator (NSMO) indicate that BESS deployment will vary by region. Northern Viet Nam is expected to require 1.35–2.8 GW of storage capacity by 2026, increasing to 1.7–6.5 GW by 2030 to address power shortages and grid congestion during peak demand. Meanwhile, demand in Central and Southern Viet Nam, where most solar and wind projects are concentrated, is expected to accelerate from 2027–2028, with an estimated development potential of around 2 GW to support peak shaving and improve grid flexibility.

3. Key Market Segments Driving BESS Demand

Although Viet Nam aims to develop 16.3 GW of battery energy storage capacity by 2030, market growth over the next five to ten years is expected to be driven by two strategic segments.

The first is the utility-scale BESS market, integrated with large renewable energy projects. Under the implementation framework of the Revised Power Development Plan VIII, utility-scale solar projects are required to install battery storage equivalent to at least 10% of installed capacity, with a minimum storage duration of two hours. This policy is expected to create stable demand for BESS while enhancing grid flexibility through services such as frequency regulation, voltage support and black-start capability.

The second growth segment is the commercial and industrial (C&I) behind-the-meter market, which is expected to achieve the fastest commercialization in the near term. Increasing pressure to meet global sustainability requirements, particularly the European Union’s Carbon Border Adjustment Mechanism (CBAM), is encouraging manufacturers and exporters to increase their use of renewable electricity. Battery storage enables businesses to maximize the value of rooftop solar systems by storing excess electricity generated during the day and using it during peak demand periods, thereby increasing self-consumption and improving energy resilience.

The Vietnam Energy Association (VEA) also recommends expanding Shared BESS models, where a single 5–10 MWh storage system serves multiple factories within an industrial park. This approach can significantly reduce investment costs while making battery storage more accessible for small and medium-sized enterprises.

II. Policy, Pricing and Financing: Opportunities and Remaining Challenges

1. Progress in the Regulatory Framework

Viet Nam has made significant progress in establishing the legal foundation for Battery Energy Storage Systems (BESS), creating stronger policy support for market development. However, important gaps remain between policy objectives and commercial implementation.

A major milestone was the adoption of the 2024 Electricity Law (Law No. 61/2024/QH15), which officially recognizes electricity storage as part of the national power infrastructure and lays the groundwork for a more competitive electricity market and multi-component pricing mechanism. In parallel, the amended Law on Economical and Efficient Use of Energy (Law No. 77/2025/QH15) recognizes BESS as an eligible technology for energy efficiency programs, enabling large energy users to incorporate battery storage investments into their energy performance plans.

Further progress came in June 2026, when the Government issued Decree No. 243/2026/ND-CP, amending the regulations on Direct Power Purchase Agreements (DPPA) and rooftop solar power. The decree provides a legal framework for electricity exported from battery storage systems, allows rooftop solar projects to sell up to 50% of surplus electricity to the grid, and expands DPPA eligibility to include data centers, electric vehicle charging stations and electricity retailers operating within industrial parks. These changes significantly improve the investment environment for integrated solar-plus-storage projects.

Another important policy milestone was Decision No. 988/QD-BCT, issued by the Ministry of Industry and Trade in April 2025, which introduced Viet Nam's first electricity pricing framework for solar power plants integrated with battery storage. The framework specifies key technical requirements, including a minimum storage capacity equivalent to 10% of the plant's installed capacity, a two-hour discharge duration, and a minimum charging ratio of 5%, providing greater regulatory certainty for future BESS investments.

Table 1. Maximum Electricity Price Framework for Solar Power Plants under Decision No. 988/QD-BCT

Beyond market incentives, Viet Nam has also made progress in establishing technical standards for battery energy storage. The National Commission for Standards, Metrology and Quality has issued the TCVN 14499 series, including TCVN 14499-4-3:2025, which sets protection requirements for BESS operating under harsh environmental conditions. The standards shift the focus from individual equipment safety to system-level safety, introducing stringent requirements for managing lithium-ion battery thermal runaway under high temperatures, humidity and coastal conditions. They also provide a common technical framework for project evaluation and investment appraisal.

2. Key Challenges in Pricing, Market Design and Investment

Despite the introduction of a pricing framework, the commercial case for utility-scale BESS remains relatively weak. Under Decision No. 988/QD-BCT, the price premium for solar projects integrated with battery storage ranges from only VND 138–191/kWh, a level widely considered insufficient to deliver attractive investment returns or offset the high upfront capital costs of BESS.

The core challenge lies in the gap between project economics and system value. While EVN recognizes that BESS can reduce peak generation requirements, improve frequency and voltage control, and strengthen grid reliability, Viet Nam has yet to establish a fully functioning ancillary services market that compensates these system benefits.

At present, electricity payments are based primarily on energy delivered (Energy Payment), whereas BESS generates much of its value through flexibility and availability rather than electricity production. Without a complementary Capacity Payment mechanism, investors have limited opportunities to recover their investment costs. Industry experts therefore recommend introducing a two-part pricing mechanism and expanding market incentives to attract private investment in large-scale energy storage.

The issue is also reflected in EVN's proposed 2026 pricing scenarios for solar-plus-storage projects. While new tariff options have been developed, EVN has recommended further assessment of their economic viability, arguing that battery storage costs should be matched by clear operational responsibilities, dispatch arrangements and regional demand assessments to avoid inefficient investment and localized overcapacity.

3. Legal, Administrative and Financing Barriers

Despite recent policy progress, the absence of a dedicated regulatory framework for battery energy storage continues to create significant implementation challenges. BESS projects must currently comply with multiple laws governing electricity, construction, land use and environmental protection, resulting in overlapping approval procedures and regulatory uncertainty.

One of the key issues is the classification of BESS facilities. As battery storage is often treated as an auxiliary component of power projects rather than an independent infrastructure asset, local authorities face difficulties in determining approval procedures for project design, construction, environmental impact assessments and commissioning. Stand-alone BESS projects also encounter challenges in land allocation and investment approval because they have not yet been clearly incorporated into provincial land-use planning.

Technical readiness remains another concern. Although Viet Nam has adopted the TCVN 14499 standards based on IEC 62933, the country still lacks accredited large-scale testing facilities and certification bodies capable of evaluating internationally recognized safety standards such as UL 9540 and UL 9540A. This has slowed fire safety approvals and increased project development risks.

Financing is further constrained by regulatory uncertainty and technology-related risks, including battery degradation and long-term performance. While global BESS costs continue to decline, turnkey investment costs remain above USD 150/kWh. Business models such as Energy Service Companies (ESCOs) and Energy Service Agreements (ESAs) offer promising solutions for the commercial and industrial sector by reducing upfront capital requirements. However, wider adoption will depend on high system availability, stable peak-to-off-peak electricity price differentials, and standardized power purchase agreements (PPAs) that provide predictable revenue streams and improve project bankability.

III. Growth Opportunities for Vietnamese Businesses

The success of Viet Nam's energy transition will depend not only on expanding renewable generation but also on building sufficient energy storage capacity. Beyond addressing grid stability, the development of Battery Energy Storage Systems (BESS) represents a strategic opportunity to strengthen the country's industrial base and enable Vietnamese companies to participate more actively in the global clean energy supply chain.

1. Expanding Domestic Manufacturing and Localization

Rather than remaining a market for imported equipment, Vietnamese enterprises are increasingly investing in domestic battery and BESS manufacturing. Several leading corporations have announced multi-billion-dollar investments to develop large-scale production facilities, reflecting a strategic shift toward building local manufacturing capacity and technological competitiveness.

This transition is expected to reduce reliance on imported equipment, strengthen supply chain resilience, and create new opportunities for technology transfer, skilled employment and industrial value creation. As domestic production capabilities continue to expand, Vietnamese manufacturers will be better positioned to meet growing demand at home while participating in regional and global energy storage markets.

Table 2. Major Battery and BESS Manufacturing Projects Led by Vietnamese Companies and Joint Ventures

The emergence of large-scale manufacturing projects led by VinES, GG Power and T&T Group marks an important milestone in Viet Nam's ambition to develop domestic LFP (Lithium Iron Phosphate) battery cell production, the technology currently regarded as the preferred solution for grid-scale energy storage due to its safety, durability and cost competitiveness.

The expansion of battery manufacturing is also expected to stimulate a broader domestic supply chain. Vietnamese companies in mechanical engineering, electrical equipment and industrial manufacturing have opportunities to supply key components, including BESS containers, battery trays, power cables, inverters, liquid-cooling systems and fire protection equipment. Increasing the localization of these components will help reduce costs, strengthen supply chain resilience and improve the competitiveness of locally manufactured energy storage systems.

2. Expanding Technical Services, EPC Capabilities and Smart Energy Solutions

Beyond hardware manufacturing, significant opportunities are emerging in system integration, engineering services and software development. Vietnamese engineering, procurement and construction (EPC) contractors have accumulated valuable experience from the country's rapid solar energy expansion between 2018 and 2021, providing a strong foundation for delivering turnkey BESS projects.

Local EPC companies are well positioned to provide system design, technology selection, DC- and AC-coupled integration, installation, commissioning and long-term operation and maintenance services. By combining internationally recognized battery technologies with domestic engineering expertise, they can help investors reduce project risks and optimize lifecycle performance.

At the same time, software is becoming a key source of value creation in the BESS industry. Opportunities are growing for Vietnamese technology companies to develop Energy Management Systems (EMS) and Battery Management Systems (BMS) powered by artificial intelligence. AI-based applications can optimize battery charging and discharging according to electricity price signals, forecast demand, and detect early signs of battery degradation or thermal runaway, improving both operational efficiency and system safety.

Developing proprietary EMS and BMS platforms will enable Vietnamese companies to capture higher value within the energy storage supply chain while reducing reliance on imported software solutions.

3. Regional Supply Chains and the Circular Economy

Beyond meeting domestic demand, the Vietnam Energy Association (VEA) envisions Viet Nam becoming a leading regional hub for battery energy storage solutions by 2035. With its strategic location, competitive manufacturing costs and well-established foreign-invested industrial base, the country is well positioned to supply containerized BESS solutions and energy management software to fast-growing ASEAN markets such as the Philippines, Indonesia and Thailand.

Another long-term opportunity lies in battery recycling. As lithium-ion batteries typically have a service life of 15–20 years, a growing volume of end-of-life batteries will require responsible treatment. Developing domestic recycling capabilities to recover valuable materials such as lithium, nickel and cobalt will not only reduce environmental impacts but also strengthen resource security and support the development of a circular economy for the energy storage industry.

IV. Policy Recommendations from the Vietnam Energy Association(VEA)

To achieve the target of 16.3 GW of BESS capacity by 2030 and accelerate private investment, the Vietnam Energy Association (VEA) has proposed a comprehensive policy roadmap built around four strategic priorities:

1. Strengthen the regulatory framework by issuing dedicated regulations for BESS, streamlining permitting procedures, and enabling shared BESS models within industrial parks.

2. Reform electricity pricing and market mechanisms through the establishment of an ancillary services market, a two-part payment mechanism combining energy and capacity payments, and more flexible electricity pricing to improve investment returns.

3. Enhance technical standards and green finance by developing internationally accredited battery testing and certification facilities, while promoting standardized power purchase agreements (PPAs) and financing mechanisms that improve project bankability.

4. Support domestic manufacturing through targeted tax incentives, preferential financing and industrial policies that encourage local production, strengthen supporting industries and position Viet Nam as a regional manufacturing and export hub for battery energy storage technologies.

VEA recommends implementing these measures in phases, from pilot projects in the short term, to market expansion in the medium term, and ultimately to a fully competitive and mature energy storage market in the long term.

Dr. Nguyen Anh Tuan - Vice Chairman, Vietnam Energy Association (VEA)