News & Exhibition

A technical delegation from a Congolese energy enterprise has arrived in China for a week-long visit to SUNDTA’s headquarters and manufacturing facilities. The visit focuses on inspecting a 9.6MW photovoltaic (PV) system, a 2.4MW power conversion system (PCS), and a 10MWh battery energy storage container, which together form a comprehensive utility-scale energy storage solution tailored for the customer’s solar-plus-storage project in the Democratic Republic of the Congo.   During the visit, Congolese engineers and project managers engaged in in-depth discussions with SUNDTA’s technical team regarding the integration of the 9.6MW PV array with the accompanying 2.4MW PCS. The 10MWh containerized lithium-ion battery system was demonstrated as a critical component for peak shaving, load shifting, and backup power in regions with unstable grid infrastructure. The delegation also toured SUNDTA’s production lines for lithium iron phosphate (LFP) batteries, modular DC-coupled storage units, and smart energy management systems (EMS).   A highlight of the collaboration is SUNDTA’s deep strategic partnership with Solis, a global leader in inverter technology. Under this alliance, Solis provides comprehensive technical support for energy storage inverters, including hybrid inverters, low-voltage battery-ready inverters, and high-voltage three-phase inverters. The compatibility between Solis energy storage inverters and SUNDTA’s lithium batteries ensures stable and safe power generation, with features such as state-of-charge (SoC) balancing, overcharge protection, and thermal runaway prevention.   The visit also covered contractual details for the procurement of the 9.6MW system, including on-grid and off-grid switching capabilities, frequency regulation, and islanding detection. The Congolese customer emphasized the need for scalable battery modules and remote monitoring via cloud-based EMS. SUNDTA responded by presenting its latest liquid-cooled battery racks, which enhance cycle life and round-trip efficiency (RTE) in tropical climates.   The two parties signed a memorandum of understanding (MoU) to advance the project, with SUNDTA committed to delivering the complete solution within six months. The cooperation is expected to bolster renewable energy penetration in Central Africa, reduce diesel generator dependency, and support mining operations with reliable solar-storage hybrid power.   This visit marks a milestone for SUNDTA’s expansion into African off-grid and weak-grid markets, leveraging Solis’s grid-forming inverters and SUNDTA’s high-density energy storage systems to enable 24/7 clean electricity.

SUNDTA, a leading provider of energy storage inverters and lithium battery systems, recently demonstrated its unwavering commitment to global customer support. Wink Zhang, Sales Director of SUNDTA, together with Li Xiaofeng, Operations and Maintenance Engineering Manager, traveled to Cuba for a hands-on technical visit at a local customer’s facility. Guided by the client, the team conducted a thorough on-site inspection of the customer’s energy storage system, which integrates SUNDTA’s storage inverters and wall-mounted lithium batteries.   During the visit, Li Xiaofeng meticulously analyzed and resolved several operational issues encountered by the customer. He also performed a comprehensive check of the system’s real-time performance, ensuring optimal functionality. This proactive, face-to-face support is a hallmark of SUNDTA’s service philosophy. The company regularly dispatches technical experts to overseas customer sites, offering both on-the-ground troubleshooting and dedicated 1-on-1 online technical support – a lifeline that guarantees minimal downtime and maximum efficiency for clients worldwide.   The following day, both parties convened for an in-depth technical discussion. Using SUNDTA’s 51.2V 280AH high-voltage rack-mounted lithium battery linked with an Atess energy storage inverter for power generation as a live case study, the teams explored synchronization protocols, load matching, and efficiency optimization. The discussion also paved the way for deeper collaboration in future projects, reinforcing SUNDTA’s role as a flexible and reliable partner in the global energy transition.   Why SUNDTA is the Trusted Choice for Integrators and Installers? One key takeaway from the Cuba visit is SUNDTA’s seamless compatibility with most mainstream energy storage inverter brands on the market, including Atess、Solis、Deye etc. This broad interoperability ensures that customers can source stable, high-quality inverters from SUNDTA without worrying about mismatched components. When paired with SUNDTA’s lithium batteries, the resulting system delivers steady power generation with exceptional efficiency – a direct result of rigorous engineering and strict production standards.   Every SUNDTA lithium battery undergoes stringent factory testing and power generation verification before leaving the production line. From cell matching to thermal stability checks, each unit is certified for safety, durability, and real-world performance. This uncompromising quality control gives customers absolute confidence that every product they receive is safe, reliable, and ready for demanding applications.   Beyond hardware, SUNDTA offers fully customized one-stop solar-storage solutions tailored to individual project requirements – whether for residential, commercial, or utility-scale deployments. The company also extends a warm invitation to global partners: visit SU...

A long-standing customer of SUNDTA recently completed a high-level visit to China, beginning with an exclusive tour of the Deye manufacturing facility – a key strategic partner of SUNDTA. The itinerary continued the following day at SUNDTA’s own solar panel factory, where the two parties held substantive discussions on future energy storage orders and a framework for long-term strategic cooperation.   The visit placed a strong spotlight on SUNDTA’s unique position within the solar supply chain. Through formal strategic alliances with top-tier inverter brands such as Deye, SUNDTA has secured prioritized access to a full spectrum of inverter models – from residential single-phase units to commercial three-phase systems. This arrangement directly addresses one of the most persistent frustrations in the industry: small-volume customers frequently face allocation cuts, delayed shipments, or outright refusal from distributors who prioritize bulk buyers. SUNDTA eliminates that barrier entirely. With contractual stock guarantees and real-time inventory visibility across partner brands, the company can deliver any required inverter specification on short notice, regardless of order size. Every model, every firmware version, every power class remains consistently available.   During the Deye factory tour, the customer observed firsthand how this collaboration extends beyond simple procurement. Joint quality audits, synchronized demand forecasting, and dedicated buffer stocks for SUNDTA’s client base are embedded into the partnership. For smaller installers and project developers who lack the purchasing power to negotiate directly with major inverter manufacturers, SUNDTA acts as a seamless bridge – ensuring they never face project delays due to missing components.   The second day’s visit to SUNDTA’s module production facility reinforced the company’s manufacturing strength. The factory operates multiple fully automated TOPCon cell and module lines, running at substantial capacity with room for immediate expansion. TOPCon technology, recognized for its high bifaciality, low temperature coefficient, and superior degradation performance, is produced in abundant volumes. The customer toured the entire process – from wafer sorting to final electroluminescence testing – witnessing a production environment designed for scalability. SUNDTA confirmed that its current TOPCon output can accommodate sudden demand surges without compromising lead times or quality.   Beyond module supply, the conversations delved into the rapidly growing energy storage market. The customer expressed intent to place recurring storage system orders, including hybrid inverters and modular battery banks, for upcoming commercial and industrial projects. SUNDTA presented its roadmap for next-generation storage solutions, emphasizing compatibility with Deye inverters and other partner brands. The two parties...

Despite softening demand momentum, premium solar module prices across Europe continued to rise in April, according to a module price report from solar trading platform sun.store.   The report showed the PV Purchasing Managers’ Index (PMI) fell to 66 in April, down from 68 in March, indicating a moderation in demand growth following what the sun.store described as an “exceptionally strong” first quarter.   However, prices continued to increase across almost all monitored module categories, particularly among premium and high-efficiency technologies.   Tunnel oxide passivated contact (TOPCon) bifacial modules rose 9% month-on-month to €0.117/Wp in April, while TOPCon monofacial modules increased 6% to €0.121/Wp. The report said TOPCon remained the dominant technology in the European PV market, with prices now “significantly above late-2025 levels.”   Premium residential-oriented products also posted strong gains. Full Black modules increased 9% month-on-month to €0.124/Wp, while Back Contact modules climbed 9% to €0.129/Wp, remaining the highest-priced segment tracked in the index.   According to the report, the strongest pricing increases were concentrated in modules below 500Wp, reflecting sustained residential demand and continued buyer preference for premium and high-performance products.   The report also highlighted a continued decline in the relevance of passivated emitter rear cell (PERC) technology within the European market. Among module suppliers, Trina Solar retained the leading position by power sold in April, followed by JA Solar, LONGi, Jinko Solar and Canadian Solar.   The inverter market remained largely stable during the month, with price changes across major segments limited to around 1-2%.   Hybrid inverter prices for systems between 1-15kW rose 2% month-on-month to €95.58/kW, while systems above 15kW fell 1% to €82.10/kW. In the string and on-grid inverter segment, prices for 1-15kW systems declined 1% to €44.05/kW, while systems above 15kW increased 1% to €27.04/kW.   The report said the inverter market had entered a period of “relative equilibrium,” contrasting with the stronger price volatility seen in modules. In hybrid inverter rankings, Deye retained the leading position ahead of Huawei, GoodWe, Sungrow and Fronius.   In the string inverter category, Sungrow moved into the top position ahead of Huawei, marking what the report described as one of the first major leadership changes after a prolonged period of Huawei dominance. Fronius, SMA and SolarEdge completed the top five rankings.   Survey data from 1,157 sun.store users showed 47% expected to increase purchases, while 39% anticipated no change and 14% expected reduced purchasing activity.   According to the report, the European PV market is entering a “more balanced phase,” with continued module price growth alongsid...

Two months have passed since the Strait of Hormuz was closed due to the outbreak of the Middle East conflict. With no clear indication of when the strait will be safely reopened for shipping, its ripple effects on the global energy industry are intensifying.   While the strait closure has had the most significant impact on the oil and gas industry (a situation that may prompt a rebound in new global photovoltaic (PV) installations), the PV system supply chain has also been affected, with noticeable disruptions.   Since China accounts for a large portion of global PV production capacity, the supply of core solar panels such as polysilicon and silicon wafers has been relatively minimally affected by the Middle East conflict. However, the situation is quite different for other components, such as aluminum-based module frames and PV glass produced using methanol. Data from market intelligence provider Mysteel shows that Iran is the world's second-largest methanol producer and China's largest methanol supplier.   “Shortages are emerging, aren’t they?” said John Mitchell, president and CEO of the global electronics association (GEA). “We’re facing copper shortages, aluminum shortages, and supply disruptions in all kinds of raw materials. Starting up new mines is not only costly but also extremely time-consuming. We can’t simply say, ‘Oh, we’re experiencing a shortage, let’s start up that mine in country X now,’ that kind of solution simply can’t be implemented quickly.” Although the Middle East is not a major aluminum producer—according to ING, the region accounts for about 9% of global aluminum production—a disruption to the aluminum supply chain will still have a ripple effect on the global market, impacting supply patterns and product pricing, and potentially driving up the cost of module frames, which are primarily made from aluminum.   However, the industry is not without options. If the situation in the Straits Times worsens and continues to put pressure on aluminum supply and prices, companies may need to not only find new sources of aluminum but also explore alternative solutions, such as using steel to manufacture module frames.   Mitchell explained, “The longer this situation persists, the more proactive companies will be in seeking new sources of raw materials and strengthening other supply channels.” He added that the longer it takes for the Strait of Hormuz to be cleared and reopened, the higher the likelihood that companies will eventually diversify their raw material sourcing from different regions.   Solar Demand May Further Exacerbate Raw Material Shortages   If raw material shortages and rising prices are already troubling enough, the ripple effect of higher oil and gas prices—namely, increased interest in photovoltaic modules—poses another challenge.   According to data from UK energy sup...

HEFEI, China – SUNDTA has announced that its 51.2V 100Ah high-voltage rack-mount lithium battery has successfully completed production and passed all factory testing protocols. Marking a new milestone in the company‘s global market expansion, ten complete sets of the high-voltage rack-mount lithium battery system have been prepared and are now scheduled for packaging and shipment to Cuba.   Developed to meet the growing global demand for modular and scalable commercial energy storage solutions, the SUNDTA 51.2V 100Ah high-voltage rack-mount lithium battery system delivers a range of advantages that place it on equal footing with leading global brands. Based on advanced LiFePO₄ cell chemistry, the battery features high energy density, a compact footprint, and superior safety performance under continuous high-duty cycling. The module design supports energy expansion by adding additional racks, allowing commercial and industrial users to scale capacity incrementally without the need for system-wide redesign, while achieving round-trip efficiency of over 90% and lifecycle performance exceeding 6,000 cycles beneath 80% depth of discharge. Each battery is equipped with an intelligent Battery Management System (BMS) that provides comprehensive protection against over-discharge, over-charge, over-current, over-high temperature, and low temperature, while automatically balancing current and voltage across individual cells, extending battery life and maintaining long-term capacity stability.   The shipment to Cuba arrives at a pivotal moment for the Latin American nation as it intensifies its energy infrastructure transformation. Cuba is currently advancing a 100-solar-park program with a total installed capacity of 2,000 MW, part of which has already begun operations, while simultaneously constructing 50 MW battery storage systems across four substations to address grid stability challenges. With solar parks already covering an estimated 49% to 51% of Cuba‘s daytime electricity demand, the integration of high-voltage rack-mount lithium storage systems is critical for maximizing solar utilization and reducing reliance on thermoelectric generation.   Beyond the battery modules themselves, SUNDTA distinguishes itself by offering a complete turnkey photovoltaic energy storage solution. Customers partnering with SUNDTA receive a 100kW + 100kWh Energy Storage System that integrates 100kW energy storage inverters (bidirectional hybrid PCS), solar panels, mounting systems, energy management systems (EMS), and BMS-controlled battery racks into a fully coordinated solar-storage platform. This approach eliminates the complexity of coordinating multiple suppliers, ensures component compatibility, and streamlines the entire project lifecycle from design through commissioning.   Recognizing that successful energy storage deployment in emerging markets demands not only premium hardware but also specialized technical expertise, SUNDT...

SUNDTA, a leading manufacturer in the energy storage industry, has announced the successful completion of its latest production batch of high-voltage lithium batteries at its dedicated battery and battery inverter manufacturing plant. Following rigorous factory testing, the batch is now ready for shipment to the port for delivery to customers worldwide.   The newly produced high-voltage lithium batteries incorporate the most advanced features of modern energy storage technology. Compared to conventional low-voltage systems, SUNDTA’s high-voltage lithium batteries deliver higher energy density, lower internal resistance, and improved charge-discharge efficiency. This translates into faster response times, reduced energy loss, and the ability to handle larger peak loads—making them ideal for both residential and industrial applications. When paired with SUNDTA’s intelligent battery inverters, the system achieves seamless power conversion, grid stabilization, and enhanced safety through multi-layer protection against overcharge, overheating, and short circuits. The inverters also feature wide voltage compatibility and high-efficiency MPPT (Maximum Power Point Tracking), ensuring optimal solar energy harvest even in variable weather conditions.   What truly sets SUNDTA apart is its ability to provide a complete, one-stop photovoltaic and energy storage system solution. Whether for residential solar-storage systems, commercial and industrial (C&I) installations, or utility-scale ground-mounted projects, SUNDTA offers perfectly tailored solutions that integrate solar panels, high-voltage batteries, inverters, and energy management software. Customers benefit from a single point of procurement and support, eliminating the complexity of coordinating multiple vendors.   SUNDTA also takes pride in its professional pre-sales and after-sales teams. These experts deliver timely, knowledgeable guidance—from system design and product selection to installation and maintenance. For customers requiring on-site assistance, SUNDTA maintains a dedicated engineering and operations team that can travel directly to client locations, providing face-to-face troubleshooting and optimization services. This commitment saves customers significant time and effort while ensuring reliable, expert-backed support.   In addition, SUNDTA warmly welcomes customers from around the globe to visit its state-of-the-art manufacturing facilities and company headquarters in China. On-site tours offer firsthand insight into SUNDTA’s quality control, production processes, and technical capabilities, fostering trust and long-term partnerships.   With the latest high-voltage batteries now en route to port, SUNDTA continues to demonstrate its leadership in delivering efficient, scalable, and customer-centric energy storage solutions.        

  Warsaw, Poland / Shenzhen, China – April 15, 2026 – SUNDTA, a fast-growing energy storage specialist, today announced the successful commissioning of a 24kW + 30kWh residential energy storage system for a customer in Poland. The project, built around two Deye 12kW hybrid inverters, now fully covers the family’s daily electricity needs, significantly reducing grid dependence and lowering energy bills.   The Polish homeowner selected SUNDTA after evaluating multiple options. The final system combines dual Deye 12kW inverters (total 24kW) with SUNDTA’s own high-voltage lithium battery bank of 30kWh usable capacity. The installation seamlessly integrates with existing rooftop PV, achieving stable power output and high round-trip efficiency.   Deep Partnerships with Tier-1 Inverter Brands The success of this project highlights SUNDTA’s strong technical collaboration with world-leading inverter manufacturers. “We have built deep, long-term partnerships with top-tier brands including Deye and Solis,” said a SUNDTA spokesperson. “These relationships allow us to offer perfectly tuned solutions where our batteries communicate natively with their inverters, ensuring plug-and-play reliability and maximum system efficiency.” Thanks to these partnerships, SUNDTA’s proprietary lithium batteries are pre-tested and certified to work with the vast majority of inverters on the market, including Deye, Solis, Growatt, GoodWe, and others. End users benefit from: • Enhanced safety – multi-layer protection (BMS, fuses, temperature control) • Proven reliability – rigorous factory testing and real-world validation • Stable, high-efficiency power – low self-discharge and high charge/discharge efficiency across a wide temperature range • One-Stop Solution for Any Home or Business   Beyond supplying high-quality batteries, SUNDTA offers a complete one-stop solar-storage solution. The company supports customers from initial design to final commissioning, covering: • Custom system sizing and configuration • Product selection (inverters, batteries, panels, accessories) • Technical documentation and wiring diagrams • After-sales support and remote troubleshooting For customers who already have an existing design or partial equipment, SUNDTA provides technical and product configuration services to optimize their system – whether upgrading an old battery, adding storage to an existing PV array, or reconfiguring inverter settings for better performance.   “We Solve Real Family Needs” “Our Polish customer needed a system that could handle both peak loads (heat pump, EV charger, kitchen appliances) and provide overnight backup. The 24kW inverter power plus 30kWh storage exactly matched their 7kW average load and 4‑hour autonomy requirement,” the spokesperson added. “After installation, the family now runs ...