News & Exhibition

The newly released 17th edition of Intersolar Europe's International Photovoltaic Technology Roadmap (ITRPV) shows that despite facing multiple challenges such as overcapacity and significant price fluctuations, the global photovoltaic industry continues to demonstrate strong resilience in technological iteration and cost reduction.   This authoritative report, jointly compiled by 38 leading companies and research institutions across the global crystalline silicon photovoltaic industry chain, comprehensively outlines the industry's technological iteration path, clearly demonstrating that the industry is fully shifting towards higher efficiency while continuing the decades-long "learning curve" pattern of cost reduction.   The report points out that the industry's learning curve will increase to 26% from 1976 to 2025; N-type cells will fully replace P-type PERC, silver consumption will reach a historical turning point, and silicon perovskite tandem cells will achieve mass production in 2027.   Key Indicator: Industry Learning Curve Rises to 26% A key conclusion of this edition is that the photovoltaic industry's learning rate will increase to 26% from 1976 to 2025, compared to 24.9% in the previous edition. This indicator represents the decrease in unit cost of modules for every doubling of cumulative installed capacity in the industry. It confirms that even with overcapacity and fierce price competition in the past two years, the underlying logic of photovoltaics—relying on technological innovation to continuously reduce production costs—remains unchanged. In 2023 and 2024, the industry experienced a sharp drop in module prices due to overcapacity. By the end of 2025, prices stabilized and rebounded slightly, with the end-user price at approximately $0.09/watt, an increase of $0.01 compared to the end of 2024. The core driver of this price recovery was the implementation of domestic energy regulation policies, which tightened new capacity expansion across the board, balancing the severely oversupplied market. Major Technological Migration: N-type Completely Replaces P-type, BC Technology Achieves 28% Market Share in Ten Years. The solar energy industry is experiencing a fundamental technological iteration inflection point. The report confirms that in 2024, the market share of N-type TOPCon officially surpassed that of traditional P-type PERC, and the replacement process accelerated comprehensively in 2025. In terms of efficiency: Current mass-produced TOPCon solar panels achieve an efficiency of 23.5%, on par with HJT; TOPCon back-contact (TBC) modules lead the industry with an efficiency of 24.1%; traditional P-type PERC modules only reach 21.7%. Meanwhile, high-power, bifacial, and N-type modules have shed their high-end premium attributes and become the mainstream in the market. Almost all new capacity is being invested in N-type routes such as TOPCon, HJT, and IBC back-contact, with only a small number of newly buil...

In June 2026, a landmark photovoltaic project in Iran achieved a critical breakthrough. The 10MW grid-connected solar initiative, a collaborative effort between SUNDTA and its Iranian partners, reached its first major milestone with the successful grid connection and power generation of the initial 2.5MW unit. This achievement marks not only a significant step forward in Iran's renewable energy transition but also a powerful testament to SUNDTA's unparalleled capabilities in manufacturing, supply chain management, and international project execution.   At the heart of this success lies SUNDTA's robust in-house manufacturing capacity. Unlike many solar companies that rely solely on third-party suppliers, SUNDTA operates its own dedicated factory with independent production lines for both lithium batteries and solar panels. This vertical integration allows the company to maintain strict quality control at every stage of production. The factory boasts impressive automated production lines that churn out high-quality photovoltaic components with unparalleled efficiency. With ample production capacity and a 98% on-time delivery rate while maintaining top-tier quality standards, SUNDTA ensures reliable supply chain management and timely project delivery. This manufacturing prowess guarantees that clients receive consistent, high-performance products without the delays or quality compromises often associated with outsourced production.   Complementing its own manufacturing strength, SUNDTA has forged deep strategic partnerships with leading photovoltaic brands. The Iran project utilizes JINKO 590W N-type solar panels and GROWATT 250KW grid-connected inverters. JINKO's N-type TOPCon technology offers superior efficiency of approximately 22.8% with excellent low-light performance and reduced degradation. GROWATT's industrial on-grid inverters, known for their transformerless design and IP66 protection, deliver reliable three-phase grid integration. These collaborations with tier-1 manufacturers, combined with SUNDTA's own production capabilities, ensure a stable and abundant supply of premium components for projects of any scale. This dual strategy—own manufacturing plus strategic alliances—positions SUNDTA as a true one-stop provider capable of meeting diverse project requirements without supply constraints.   The journey to this June 2026 milestone began with high-level engagement. In August 2025, SUNDTA traveled to Iran for a productive business mission. The delegation met with Iran's Minister of Renewable Energy, who expressed strong support for SUNDTA's vision and technological capabilities. The minister commended SUNDTA's adaptive approach to Iran's unique energy landscape, stating that the company's expertise would significantly contribute to Iran's renewable energy targets and sustainable development goals. This ministerial endorsement underscored the strategic importance of the partnership and opened doors for deeper co...

If fire prevention were a subject, the fire brigade would undoubtedly score full marks. However, one day in August 2024, the Kashgar Fire and Rescue Brigade's own supply warehouse was completely destroyed by fire. On June 8, 2026, the Kashgar Emergency Management Bureau published the "Investigation Report on the '8.4' Major Fire Accident at the Kashgar Fire and Rescue Brigade's Supply Warehouse" on its official website. The report ultimately concluded that the fire was caused by a thermal runaway malfunction of a lithium battery in a portable lighting system, which burned down the entire main building of the storage warehouse and the equipment and supplies stored inside. The fire affected an area of ​​approximately 960 square meters, resulting in direct property losses of approximately 17.4888 million RMB. Why would a specialized firefighting team have its own warehouse burned down by a small lithium battery? Let's see what the accident investigation report says.   I. Scene Reconstruction: 101 Firefighters Fighting Their Own Fire Let's rewind to the afternoon of August 4, 2024. At approximately 5:29 PM, three sanitation workers from the Kashgar Fire and Rescue Brigade were cleaning the asphalt track on the southwest side of the compound when they noticed flames and black smoke billowing from the north window of the storage warehouse. They immediately informed a passing firefighter, who promptly reported to the commander of the full-duty command center. The command center then quickly dispatched resources. This deployment triggered a large-scale "self-rescue operation." The combat support unit, three brigades from Kashgar City and Shufu and Shule counties, five fire and rescue stations, the Southern Xinjiang Command, the full-duty command center, and standby personnel rushed to the scene, totaling 25 fire trucks and 101 firefighters. They carried 203 tons of water and 29.5 tons of foam concentrate; their manpower was complete, and their professionalism was impeccable. However, no matter how quickly they rushed in, they couldn't withstand the fierce fire. The fire was effectively controlled at 6:50 PM, extinguished at 7:31 PM, and the fire scene was not completely cleared until 8:51 PM. Ultimately, the fire burned an area of ​​960 square meters, completely destroying the main building of the storage warehouse and all the equipment and supplies stored inside, resulting in direct property losses of approximately 17.4888 million RMB. Fortunately, there were no casualties, a stroke of luck amidst the misfortune. After the fire, the accident investigation team spent over a year repeatedly investigating and collecting evidence. They did a great deal of work—ruling out all common options such as arson, lightning strikes, electrical wiring faults, and external fire sources, even using simulation experiments to rule out the possibility that the portable lighting system ignited the packaging. Finally, the Tianjin Fire Evidence Identification Cente...

Anhui Sun D.ta New Energy Co.,Ltd has announced the successful conclusion of its recent technical support trip to Cuba, where engineers provided on-site troubleshooting and system optimizations for local clients. The initiative marks another milestone in SUNDTA’s expanding global footprint and its commitment to delivering tailored energy storage solutions. During the visit, SUNDTA engineers identified and resolved technical issues in photovoltaic and energy storage systems, making minor adjustments based on customer needs. After these optimizations, all SUNDTA lithium batteries and energy storage inverters are now operating normally and generating electricity efficiently. Cuban customers have been freed from grid-based limitations in their daily production and power needs.   Wall-Mounted Excellence: Compact Power for Real-World Needs At the heart of this success is SUNDTA’s 51.2V 200Ah wall-mounted lithium battery, a flagship product that embodies the key advantages of modern wall-mounted energy storage solutions. Utilizing top-grade LiFePO₄ (Lithium Iron Phosphate) chemistry, the battery offers exceptional safety, thermal stability, and a cycle life exceeding 6,000 cycles—translating to more than a decade of reliable daily use. Its sleek, space-saving wall-mount design occupies minimal floor space, making it ideal for modern homes, garages, or any environment where space is at a premium. Unlike bulky floor-standing alternatives, the SUNDTA wall-mounted battery can be installed with ease, thanks to clear wiring diagrams and a modular structure that supports plug-and-play scalability. Beyond its physical footprint, the battery incorporates a sophisticated multi-level Battery Management System (BMS) featuring advanced protection against overcharge, over-discharge, over-current, short circuits, and extreme temperatures, ensuring uncompromising safety and operational stability. With an IP65-rated enclosure, the battery is resistant to dust and moisture, offering flexibility for both indoor and outdoor installation.   Seamless Compatibility: Works with Leading Inverter Brands A standout feature of SUNDTA’s lithium batteries is their broad compatibility with mainstream energy storage inverters. Whether paired with Deye, Solis, Huawei, SMA, Schneider, Goodwe, or other major global brands, SUNDTA batteries integrate seamlessly for stable and efficient power generation. The company’s open-protocol design philosophy enables compatibility with approximately 95% of commercial inverters on the market. SUNDTA also manufactures its own proprietary off-grid inverters, delivering optimized performance when paired with SUNDTA batteries. The synergy between SUNDTA’s batteries and inverters ensures exceptionally stable power output, allowing customers to achieve true energy independence even in areas with unreliable grid access.   One-Stop Integrated Solutions and Global Customer Care SUNDTA distinguishes itself not...

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...