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BESS – The Key to a Green Power Grid and SolarBK’s Pioneering Role in Vietnam
Publish date 30/09/2025
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Vietnam is entering a period of rapid energy transition, with solar and wind power among the fastest-growing in Southeast Asia. However, the weather-dependent nature of renewables makes their output unpredictable, putting pressure on the national transmission grid and load dispatch.
On the journey toward Net Zero 2050, Battery Energy Storage Systems (BESS) are considered a strategic link to balance supply and demand, reduce curtailment, and optimize the return on renewable energy investments.
The Battery Energy Storage System (BESS) is emerging as a strategic link in the energy transition.
BESS – The “Giant Battery” of a Smart Power Grid
A standard BESS system includes:
Large-capacity lithium-ion or vanadium battery racks
Battery Management System (BMS) to monitor status and ensure safety
Power Conversion System (PCS/Inverter) to convert DC power to AC for grid integration
Cooling, fire protection, and smart monitoring platforms
During operation, the national grid control center sends real-time signals:
when excess renewable energy is available (midday sun, strong wind seasons), BESS automatically stores electricity;
when demand rises (evenings, peak hours), it discharges power back to the grid.
Through peak shaving and load shifting, BESS helps reduce transmission overload, minimize renewable energy waste, and stabilize grid frequency.
Global Momentum: BESS Is Accelerating Worldwide
The global energy storage market is booming.
McKinsey (2024) projects the BESS market will reach USD 120–150 billion by 2030, while Fortune Business Insights forecasts it at USD 114 billion by 2032.
BloombergNEF (2024/2025) reports that average turnkey BESS prices have dropped to around USD 165/kWh globally, and as low as USD 85/kWh in China for 4-hour systems — a key factor driving large-scale adoption.
United States: BESS ranges from residential systems (Tesla Powerwall, Sunrun, Generac – 10–15 kWh) to mega-projects like Moss Landing in California (750 MW/3,000 MWh) connected directly to the CAISO grid for real-time load balancing.
China: Leading the global expansion, initially targeting 70 GW of “new energy storage” by 2025, later raising its ambition to 95 GW by mid-2025 and potentially exceeding 180 GW before 2027 thanks to aggressive policy support and falling battery costs.
Vietnam: Huge Potential but Still in Early Stages
According to the adjusted Power Development Plan VIII (Decision 768/QĐ-TTg, April 15, 2025), Vietnam targets 10,000–16,300 MW of energy storage capacity by 2030 (a dramatic jump from just a few hundred MW previously) and nearly 96,000 MW by 2050 to support a high share of renewables.
The plan also aims for 50% of office buildings and households to adopt rooftop solar for self-consumption by 2030.
However, the market is still nascent: only a few pilot projects of several dozen MW exist; actual deployment remains limited due to high storage costs and an incomplete supply chain.
Between 2020–2022, many solar farms faced significant curtailment during midday due to transmission overload — in South Central Vietnam, curtailment reached 20–40% at some plants, even as renewables accounted for just ~4% of total national generation annually. This highlights Vietnam’s urgent need for BESS.
Prof. Le Minh Phuong, Chairman of the Council, Ho Chi Minh City University of Technology: “Demand for energy conversion and management devices — such as inverters, EV chargers, BESS, and smart grids — will surge as the share of renewables continues to rise.”
Mr. Kỳ Quang Minh, Chief Technology Officer of SolarBK, shared insights about BESS at the 2025 Energy Innovation Forum in Ho Chi Minh City.
Mr. Ky Quang Minh, CTO of SolarBK: “High storage costs remain the biggest challenge. BESS solutions in Vietnam often cost USD 300–400/kWh, making payback periods long. Local companies mainly focus on system integration and smart energy management software, while core components such as battery cells and inverters are still imported.” (VnExpress)
SolarBK – A Pioneer in Developing and Deploying BESS in Vietnam
With nearly 20 years in renewable energy, SolarBK has evolved from manufacturing solar panels to integrating intelligent energy storage solutions. Unlike importing full turnkey systems, SolarBK customizes BESS solutions to fit Vietnam’s electricity tariffs, load profiles, and grid conditions. The company is also developing an AI-powered energy management platform to forecast demand, optimize charge/discharge schedules during peak and off-peak hours, reduce investment risk, and improve economic feasibility.
SolarBK signed a strategic partnership with VinES (Vingroup) to deploy the “Make in Vietnam” rooftop solar solutions integrated with battery storage.
Following the agreement, the first 300 Solar+BESS systems were installed in 2023, paving the way for mass adoption from 2024 and supporting the goal of 50% of buildings and households self-producing and self-consuming solar power by 2030 under the national power plan.
Earlier, SolarBK had already demonstrated large-scale capability by installing 14 MWp of solar across 50 Vincom shopping centers nationwide, meeting strict technical and schedule requirements.
Notably, global corporations are also adopting this model in Vietnam.
The LEGO factory in Binh Duong has been equipped with 12,400 rooftop solar panels combined with a BESS system.
The factory is equipped with 12,400 rooftop solar panels combined with a BESS system. SolarBK served as the solar system designer and developer, proving its capability to meet world-class standards and accelerating the adoption of BESS for green industrial development in Vietnam.
Outlook: BESS Is the Key to a Greener, More Stable Grid
Vietnam’s clean energy transition is not just about adding more solar and wind capacity; smart energy storage infrastructure is essential to cut waste, stabilize the grid, and reduce costs.
With large-scale project experience (Vincom 14 MWp), intelligent integration and management capabilities, and strategic partnerships with VinES and global players like LEGO, SolarBK is positioning itself as a pioneer in Vietnam’s BESS market, helping the country move closer to its Net Zero 2050 goal and build a greener, more self-reliant power system.
