PAKA, Malaysia, July 7, 2026 /PRNewswire/ -- Sungrow, the globally leading PV inverter and energy storage system provider, announced the official commissioning of the Santong Battery Energy Storage System (BESS), owned and developed by Tenaga Nasional Berhad (TNB), marking another major milestone for Malaysia in advancing battery energy storage system connected to the national grid.
Located in Terengganu, the 100MW / 400MWh Santong BESS project plays a critical role in Malaysia's energy transition journey, reinforcing national grid resilience while enabling broader renewable energy integration. Designed to meet stringent grid performance requirements, the project targets 88% round-trip efficiency (RTE) in its first year of operation and supports both grid-following and grid-forming operating modes to enhance system stability and reliability.
For this landmark deployment, Sungrow delivered a fully integrated energy storage solution comprising 90 units of PowerTitan 2.0 liquid-cooled energy storage systems (ST5015UX-4H + MVS5140-LS) together with the FEMS (Facility Energy Management System), enabling intelligent dispatch and flexible grid support capabilities.
At the core of the project are multiple advanced grid-support functions that strengthen operational flexibility and enable higher renewable penetration, including:
- Fast active power ramping and Fast Frequency Response (FFR) for frequency support dynamic grid balancing.
- Voltage and reactive power control for voltage regulation and improved power quality.
- Grid-forming capabilities, characterized by voltage-source behavior and autonomous voltage/frequency support, enabling inertial response, power oscillation damping, on/off-grid operation, and microgrid applications.
- Station-level black start capability, enabling Sungrow's grid-forming PCS to establish a stable AC network under complete blackout conditions without an external voltage or frequency reference, while demonstrating coordinated multi-converter operation, balanced power sharing, and stable system restoration.
Delivered under an accelerated execution schedule toward commercial operation date, the project also demonstrates Sungrow's strong execution efficiency and collaborative delivery capability:
- Supported by Sungrow's local service team, headquarters project delivery team, and grid-forming/microgrid R&D team, ensuring efficient execution from customized FAT testing to commissioning and grid connection.
- Contribution to Malaysia's early grid-forming standard framework development, while achieving one of the fastest BESS grid-connection timelines in the country.
- Maintained close alignment with TNB, the project owner, on project objectives, execution, and delivery throughout the project lifecycle.
The project achieved the fastest BESS delivery record in Malaysia to date and became the country's first grid-forming grid-connected battery energy storage system project. Leveraging proactive local service support and end-to-end project execution, Sungrow successfully facilitated the 100MW full-power discharge test and secured recognition from Malaysia's Energy Minister and Deputy Prime Minister, demonstrating its strong service, delivery, and customer support capabilities.
"Santong BESS marks an important milestone in strengthening Malaysia's power system and advancing renewable energy integration," said TNB Chairman Tan Sri Abdul Razak Abdul Majid. "Its rapid response capability enhances grid reliability and supports electricity demand equivalent to approximately 40,000 households across the East Coast."
As energy systems continue to evolve toward greater flexibility and decarbonization, Sungrow remains committed to delivering innovative storage solutions that empower utilities and grid operators to build a cleaner and more resilient energy future.
Photo Credit: Courtesy of Tenaga Nasional Berhad (TNB).
Media contact:
Wang Luly
luly.wang@sungrow-hq.com
15618330862
** This press release is distributed by PR Newswire through automated distribution system, for which the client assumes full responsibility. **
Sungrow Powers Malaysia's Grid-Connected BESS to Strengthen National Power Grid Resilience
BANGKOK, July 7, 2026 /PRNewswire/ -- Sungrow, the globally leading PV inverter and energy storage system provider, showcased its latest residential, C&I, and utility-scale solutions at Asia Sustainable Energy Week (ASEW) 2026, reaffirming its commitment to advancing Southeast Asia's clean energy transition through localized innovation.
At ASEW 2026, Sungrow brought a comprehensive portfolio of PV and storage solutions tailored to local market needs, helping homeowners, businesses, project developers and utilities improve energy resilience, maximize solar value and achieve their long-term decarbonization goals.
Brand-New Low-Voltage Residential Storage Solution for Thai Households
To meet Thailand's rapidly growing residential energy demand, Sungrow unveiled its brand-new low-voltage residential solar & storage solution, featuring the MG5/10RL hybrid inverters and stackable MBL battery modules.
As electricity costs continue to rise and reliable backup power becomes increasingly important, Thai homeowners are seeking smarter and more flexible home energy solutions. The MGRL single-phase hybrid inverter is designed to deliver smarter and more user-friendly home energy management, tailored for mainstream residential applications in the country.
The MGRL series enables fast on/off-grid switching to ensure stable backup power during outages, while its modular battery system allows flexible capacity expansion to meet different household needs. Built for the local hot and humid climate, the solution combines reliability and adaptability for residential energy use. Equipped with AFCI (Arc Fault Circuit Interruption) protection to enhance electrical safety, the system effectively detects and mitigates arc faults. With an IP65 protection rating, it ensures strong resistance to dust and water ingress for stable outdoor operation. Designed for local coastal and high-humidity environments, the solution adopts CT5 anti-corrosion protection, significantly improving durability against salt mist and corrosive conditions. Together with optimized thermal design and robust system architecture, the MGRL series delivers reliable long-term performance for residential applications.
Empowering C&I and Utility Energy Transition
For commercial and industrial applications, Sungrow displayed the reliable SH125CX hybrid inverter and ST050CF stackable battery cabinet solution. Designed for factories, shopping malls and industrial parks, the integrated system enables effective peak shaving, intelligent demand control and uninterrupted backup power supply, helping local enterprises cut operational electricity costs and improve energy resilience. Optimized for tropical outdoor working conditions, the solution ensures stable year-round operation for commercial and industrial energy assets.
To address the region's rapidly expanding utility-scale solar market, Sungrow also highlighted the SG510HX high-power string inverter alongside the PowerTitan 3.0 liquid-cooled energy storage system. Featuring high power generation efficiency and simplified on-site installation and maintenance, the product effectively reduces overall project CAPEX, serving as an ideal cost-effective solution for local large-scale photovoltaic farm construction.
"Southeast Asia is entering a new stage of energy transformation, creating growing demand for localized, reliable and intelligent clean energy solutions," said Luis Xu, General Manager of Sungrow APAC Region. "At ASEW 2026, we are showcasing technologies specifically designed to meet local market needs. Together with our partners, we remain committed to accelerating Thailand's clean energy transition and supporting a more sustainable energy future across Southeast Asia."
As Southeast Asia's clean energy market continues to grow, Sungrow will continue to drive innovation and deliver localized PV and storage solutions that create long-term value for customers and accelerate the region's energy transition.
Contact:
Wang Luly
luly.wang@sungrow-hq.com
+86-15618330862
** This press release is distributed by PR Newswire through automated distribution system, for which the client assumes full responsibility. **
Sungrow Unveils Full-Scenario PV and Storage Solutions at ASEW 2026
