News & Exhibition

  HEFEI, China – September 2026 – SUNDTA, a leading provider of residential and commercial energy storage systems, has launched its annual client visit tour across Europe this month, with stops in Poland and Italy to showcase the company's latest photovoltaic (PV) energy storage technologies and reinforce its commitment to personalized, on-site service. As part of its longstanding tradition of meeting clients face-to-face, SUNDTA's delegation travels to key markets each year to conduct on-site assessments, understand specific operational needs, and deliver customized one-on-one PV energy storage solutions. By factoring in local terrain conditions, sunlight duration, and site-specific constraints, the company ensures that every system is precisely engineered for maximum performance and reliability.   Poland Warehouse Project: A Tailored Solution in Action The first leg of the tour took the SUNDTA team to Poland, where they visited a client's large-scale warehouse facility. The client, seeking to install a rooftop PV system, required a comprehensive energy storage solution that could accommodate the building's structural characteristics, local climate patterns, and solar exposure levels. SUNDTA's engineering team conducted a thorough on-site evaluation, analyzing roof load-bearing capacity, orientation, shading factors, and seasonal sunlight variations. Based on these findings, the team rapidly generated remote design schematics—delivering the client a clear, immediate visual overview of the entire project scope, from panel layout to battery placement and inverter integration. "Every site presents unique challenges," said paris from SUNDTA. "Our Poland warehouse client needed a system that could handle peak loads while providing reliable backup power. By conducting on-the-ground assessments and leveraging our remote design capabilities, we were able to present a complete solution within hours—not weeks."   Professional Engineering and Remote Support Team What truly sets SUNDTA apart is its integrated approach to client service. With over 50 certified photovoltaic engineers and project managers on staff, the company maintains a professional team capable of providing round-the-clock support from initial design through final commissioning. The company's remote engineering capabilities enable rapid response to client needs across time zones. Following the Poland site visit, SUNDTA's design team worked collaboratively with the client to refine system specifications, ensuring seamless integration with existing infrastructure. This hybrid model—combining in-person consultations with remote technical support—has become a hallmark of SUNDTA's client-centric philosophy.   12 Years of Photovoltaic Expertise With 12 years of hands-on experience in photovoltaic engineering and system design, SUNDTA brings deep technical expertise to every project. The company operates its own dedicated factory with indepen...

Germany’s federal network agency (Bundesnetzagentur) has launched its third rooftop solar PV tender of the year, which aims to award 296.3MW of new rooftop solar capacity.   The maximum bidding price has been set at €0.10/kWh (US$0.12/kWh) and bidders will have to pay for bids made. Both components remain unchanged from the two earlier rooftop solar tenders launched this year, one in February and one in June, which sought to tender 282.7MW and 296.3MW of new capacity, respectively.   However, both of these tenders were undersubscribed. The first tender saw just 155MW of new capacity awarded, from a total bid capacity of 177MW, while the second tender awarded 208.5MW. Between these two tenders, the average volume-weighted winning bid increased from €0.0956/kWh to €0.0972/kWh, while the number of successful bids increased from 85 to 108.   While Germany’s rooftop solar tenders have been undersubscribed this year, its utility-scale tenders have been oversubscribed; in August, the Bundesnetzagentur received more than 3GW of bids in its latest utility-scale tender, and awarded contracts to 261 bids for the full 2.1GW of capacity.   The government plans to launch a third utility-scale solar tender in December, bringing the total utility-scale solar capacity tendered above 6GW, which would make up for some of the shortfall in the rooftop solar space. Across the two rooftop solar tenders completed so far this year, the government has awarded 363.5MW out of a maximum available capacity of 579MW.   This disparity in interest in solar tenders comes as Germany posts new solar output records. Figures from the Fraunhofer Institute for Solar Energy Systems (ISE) show that in the first half of the year, German solar PV generation increased by 10% year-on-year and exceeded 40TWh for the first time on record.   The same figures show that ground-mount solar contributed to the majority of this growth, with 3.5GW of new ground-mount capacity additions between the first half of 2025 and the first half of 2026, compared to 2.1GW of new rooftop capacity between these periods.   European Commission to rule on Solarpaket in relation to state aid limits It is worth noting, however, that the Bundesnetzagentur is keen to expand its rooftop solar tenders further under the Solarpaket reforms introduced in 2024. Under these reforms, the government aims to increase the total rooftop solar capacity awarded annually through tenders to 2.6GW, up from the current target of 1.1GW.   However, the government is waiting on a decision from the European Commission that the Solarpaket reforms do not violate its “state aid” rules, which are put in place to prevent companies from gaining an unfair “advantage” by receiving government support for a project.   The Bundesnetzagentur noted that the commission is currently considering its latest tender with regard to state aid rules, and if a decision i...

Just recently, aviation history witnessed another bombshell.   On August 12th, at Plattsburgh International Airport in New York State, the X1, the world's largest all-battery electric demonstrator, completed its maiden manned test flight. The entire test flight lasted 27 minutes, with the all-electric propulsion system outputting over 1 megawatt, achieving zero consumption of aviation kerosene throughout the flight.   This was a technology verification test flight and does not yet possess commercial passenger operation qualifications. The goal of this flight is to accumulate a complete set of flight data for the subsequent 30-seat hybrid regional jet, the ES-30.   According to Heart Aerospace's official announcement and related reports, the X1 demonstrator aircraft tested this time has a fuselage length of 23.2 meters, a wingspan of 32.3 meters, a maximum takeoff weight exceeding 11,340 kg, and is equipped with four 400 kW-class electric motors, with a total installed power of 1,600 kW. During the test flight, the actual continuous output power exceeded 1 megawatt, the maximum test flight altitude was 335 meters, and the maximum design airspeed was 259 km/h. The maiden flight included the complete process of ground taxiing, takeoff, climb, in-flight maneuvers, and approach and landing, all completed by a single test pilot.   Regarding the most pressing question of cost, Heart Aerospace stated in its maiden flight press release that the X1 demonstrator's electricity consumption for 27 minutes of flight was approximately $5. While this figure does not include other costs such as pilot costs, maintenance costs, airport costs, financing, and insurance, it represents a significant reduction compared to aviation fuel costs.   Electric aircraft, are they really here?   The low-altitude economy has been booming in the past two years. Compared to large commercial airliners, future electric aircraft certainly cannot rely on fuel-powered large passenger planes. It is foreseeable that the main applications of electric aircraft will focus on short-haul passenger and cargo transport.   The successful maiden flight of Heart Aerospace's X1 prototype has made the future commercial application of electric aircraft clearer. my country has also been continuously exploring and innovating in the low-altitude economy field in the past two years.   Recently, XPeng Motors announced that, to date, its flying car has received over 7,000 orders and will achieve mass production of its first flying car this year.   Currently, XPeng has formed two major flying car product systems. The A868 is designed with a fully tilt-rotor configuration. Based on XPeng Motors' Kunpeng super-range extended-range architecture, it uses a self-developed aerospace-grade hybrid electric power core to provide a continuous and sufficient energy supply. It is expected to achieve a range of 500km and a top speed of 360km/h.   The A868 combines the conv...

Tesla's solar superfactory is emerging.   Recently, Tesla submitted tax credit application documents to the Texas state government, bringing its solar manufacturing project, codenamed "Crystal Solar," into the public eye.   The documents show that Tesla plans to build a vertically integrated solar power plant in Fort Bend County, Texas. The production lines will include silicon ingot pulling, wafer cutting, battery coating, metallization printing, battery testing and quality control, cleanrooms, automated logistics, and a full range of chemical support facilities.   The project will reportedly cover approximately 3,050 acres, with a total investment of $10.1 billion (approximately RMB 68.1 billion), including $8.6 billion in production equipment and related movable assets, and $1.5 billion in fixed assets. The construction period is from 2026 to 2028, with a target of commercial production in the first quarter of 2029.   At the Davos Forum in January of this year, Musk revealed plans for Tesla and SpaceX to each build 100GW annual capacity solar factories in the US over the next three years, totaling 200GW.   Now it seems Musk is getting closer to this goal.   Investing $10.1 billion to cover the entire photovoltaic industry chain   In the past two years, a very obvious feeling is that the US photovoltaic industry is accelerating its decoupling from China.   From the IRA's tax credit for domestic manufacturing, to the FEOC's restricted entity rule, and then to Section 232 trade provisions introducing minimum import prices and additional tariffs, a series of barriers have been implemented, with a very clear goal: to incentivize domestic factory construction and reduce reliance on imports from overseas photovoltaic industry chains.   However, reality often differs from policy planning. Aggressive decoupling actions have instead had a strong backlash and impact on the development of the US photovoltaic industry itself.   Currently, the vast majority of new photovoltaic capacity in the US is concentrated in the end-module packaging stage. Expansion in silicon materials, wafers, and cells is severely lagging. Truly vertically integrated domestic capacity remains scarce.   The reason for this predicament is that China holds an absolute dominant position in the core manufacturing stages of the global photovoltaic industry. Currently, my country's global market share in the four core stages—polysilicon, wafers, cells, and modules—exceeds 80%, with a near monopoly in the polysilicon sector.   my country possesses a complete photovoltaic (PV) industry cluster, mature technology, and a significant cost advantage—a competitive barrier that the United States cannot replicate in the short term.   This also means that the US's current push to decouple its PV supply chain essentially deviates from the optimal global industrial configuration. Not only will it fail to achieve rapid ...

A year after first breaking ground on one of Iran's landmark utility-scale solar initiatives, SUNDTA has returned to the country with its engineering and maintenance team to conduct final commissioning of Growatt inverters and resolve operational issues across the entire 10MW large-scale ground-mounted photovoltaic project. The visit marks a significant milestone in the ongoing partnership between SUNDTA and its Iranian client, demonstrating the company's long-term commitment to project success beyond initial delivery.   The 10MW grid-connected solar project, a collaborative effort between SUNDTA and its Iranian partners, achieved its first major breakthrough when the initial 2.5MW unit was successfully synchronized with the grid. The system utilizes SUNDTA 590W N-type solar panels featuring TOPCon technology with approximately 22.8% higher efficiency, combined with GROWATT 250KW grid-connected inverters known for their transformer-less design and IP66 protection rating. The project exemplifies SUNDTA's end-to-end capabilities, covering everything from initial consultation and system design to procurement, global logistics coordination, and on-site construction support.   SUNDTA is dedicated to providing complete photovoltaic and energy storage solutions for every client, offering integrated systems that span the entire solar-storage application spectrum. From residential energy systems designed for energy independence to commercial and industrial solutions that reduce operational costs and carbon footprints, SUNDTA's approach remains consistent: precision engineering tailored to precise requirements. The company's proprietary design methodology allows customers to scale system sizes according to their energy needs, ensuring flexibility and future adaptability.   What truly sets SUNDTA apart is its professional team, which addresses pre-sales and after-sales technical issues with unmatched expertise. The company maintains a dedicated in-house team of over 50 certified photovoltaic engineers and project managers who oversee every critical phase of project execution, delivering optimized integrated systems tailored to each client's site conditions, energy profiles, and financial objectives. SUNDTA operates its own dedicated factory with independent production lines for lithium batteries and solar panels, ensuring rigorous quality control at every stage of manufacturing. This vertical integration, combined with strategic partnerships with industry leaders such as JINKO and Growatt, guarantees a stable and sufficient supply of high-end components for projects of all scales.   SUNDTA's commitment to client relationships extends far beyond the initial sale. The company maintains overseas presence while also conducting regular international visits to meet clients face-to-face, ensuring that systems continue to operate at peak performance. The recent return to Iran follows a series of high-level engagements, including a productiv...

SUNDTA, a leading renewable energy solutions provider, has announced the successful completion of production, factory testing, and packaging of a comprehensive 300kW photovoltaic energy storage system destined for a customer in Nigeria. The system has passed all rigorous factory inspections and is now ready for shipment, marking another significant milestone in SUNDTA’s expanding presence in the African renewable energy market. The complete system comprises 325 SUNDTA 650W N-type solar panels, two Solis 250kW energy storage inverters, and a 770kWh high-voltage rack-mounted lithium battery pack. The photovoltaic mounting system for the entire installation was also manufactured in-house by SUNDTA, showcasing the company’s end-to-end manufacturing capabilities. This integrated approach eliminates the complexity of coordinating multiple vendors, allowing customers to benefit from a single point of procurement and support.   One-Stop Solar-Storage Solutions Powered by In-House Manufacturing What truly sets SUNDTA apart is its ability to provide complete, one-stop photovoltaic and energy storage system solutions. The company maintains its own dedicated production lines for both lithium batteries and photovoltaic modules, giving it full control over quality, supply chain, and delivery timelines. This vertical integration enables SUNDTA to offer perfectly tailored solutions that seamlessly integrate solar panels, high-voltage batteries, inverters, and energy management software. SUNDTA has established deep strategic partnerships with tier-one inverter manufacturers including Solis and Deye. Through these formal alliances, SUNDTA has secured prioritized access to a full spectrum of inverter models—from residential single-phase units to commercial three-phase systems. This ensures stable and comprehensive supply regardless of order size, addressing one of the most persistent challenges in the industry where smaller customers frequently face allocation cuts or delayed shipments. SUNDTA’s contractual stock guarantees and real-time inventory visibility across partner brands enable delivery of any required inverter specification on short notice.   Superior High-Voltage Rack-Mounted Lithium Batteries SUNDTA’s high-voltage rack-mounted lithium batteries incorporate the most advanced features of modern energy storage technology. Compared to conventional low-voltage systems, they 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 commercial and industrial applications. Built with automotive-grade lithium iron phosphate (LiFePO4) cells, these batteries offer exceptional safety, ultra-long cycle life exceeding 6,000 cycles, and intelligent Battery Management Systems (BMS) that monitor voltage, current, and temperature in real time. The mod...

  DAKAR, Senegal – SUNDTA, a leading provider of integrated photovoltaic and energy storage solutions, has successfully delivered a comprehensive shipment of 26 SUNDTA 5kW energy storage systems to a Senegalese customer. The customer has already completed installation of several systems, with the remainder scheduled for deployment in the coming months.   The complete system configuration includes 52 SUNDTA 51.2V 100Ah rack-mounted lithium batteries, 234 SUNDTA 570W N-type solar panels, 234 SUNDTA solar mounting brackets, and 26 Deye 5kW energy storage hybrid inverters—a powerful combination engineered to deliver reliable, sustainable power for residential and commercial applications across Senegal.   Superior Product Quality Across the Board At the heart of each system are SUNDTA's 51.2V 100Ah rack-mounted lithium batteries, built with automotive-grade LiFePO4 cell technology that ensures exceptional safety, thermal stability, and long-term reliability. Each battery pack features a built-in intelligent Battery Management System (BMS) that monitors voltage, current, temperature, and state of charge in real time, safeguarding the system against overcharge, over-discharge, and thermal runaway. With a cycle life exceeding 6,000 cycles at 80% depth of discharge, these batteries deliver more than a decade of maintenance-free service. Their compact rack-mount design enables flexible configuration and easy capacity expansion, allowing seamless scaling from a single cabinet to megawatt-hour-scale storage as energy needs grow.   Complementing the batteries are SUNDTA's high-efficiency 570W N-type solar panels. N-type technology inherently eliminates light-induced degradation (LID), ensuring consistent power output over the panel's lifetime. The panels are built to withstand harsh environmental conditions, having passed rigorous salt spray and corrosion tests—particularly valuable for Senegal's 700-kilometer Atlantic coastline. SUNDTA's photovoltaic brackets, manufactured in the company's state-of-the-art factory with precision engineering, provide durable, corrosion-resistant mounting for rooftop and ground installations. Paired with the Deye 5kW hybrid inverter, which offers 97.6% maximum efficiency and seamless on-grid/off-grid transition, the complete system delivers industry-leading performance.   Annual Electricity Savings: A Tangible Return on Investment Senegal benefits from exceptional solar resources, with average sunshine exceeding 3,000 hours per year. Coastal regions receive approximately 5.0–5.5 peak sun hours (PSH) per day, while inland areas enjoy 5.5–6.5 PSH.   A single 5kW system, comprising 9 SUNDTA 570W panels and 2 SUNDTA 51.2V 100Ah batteries (10.24kWh storage capacity), can generate approximately 9,125 kWh of clean electricity annually (5kW × 5 PSH × 365 days, accounting for standard system efficiency losses). Under Senegal's 2026 tariff structure, residential ele...

Recently, meteorological agencies in multiple countries have issued high-level warnings, indicating that a "super El Niño" that could reshape the global climate pattern is rapidly approaching from the end of 2026 to the beginning of 2027. For China's photovoltaic industry, this means that extreme weather events such as typhoons, strong gusts, and blizzards are transforming from "black swan" events into "gray rhinos." As the core power generation unit of a power plant, the adaptability to extreme environments, structural stability, and load safety of solar panels will directly determine whether they can withstand countless extreme weather events throughout their 25-year lifespan. However, a recurring but often overlooked industry issue is that the shortcomings of ultra-large-size photovoltaic modules are becoming increasingly apparent under normalized extreme weather conditions. Their comprehensive ability to cope with harsh operating conditions has become a critical issue that urgently needs to be examined.   The "Triple Blow" of El Niño El Niño is not an abstract meteorological term, but a crucial test that photovoltaic power plants must face. When global atmospheric circulation becomes abnormal, my country's densely populated photovoltaic (PV) installation areas are facing the combined impact of three extreme weather events: First, frequent and intensifying typhoons and strong gusts. The number of typhoons forming in the Pacific has increased, and their landfall intensity is stronger than usual, significantly raising the probability of severe convective weather in coastal and inland areas. For PV power plants, this means that repeated alternating gusts have become the norm, and the modules are no longer subjected to single wind pressure events, but rather to high-frequency dynamic fatigue. Second, extreme heat waves. The number of days with extreme high temperatures in summer is increasing, and the surface temperature of modules frequently exceeds 70°C. The difference in thermal expansion coefficients between glass, frames, and cells is amplified at high temperatures, leading to a continuous increase in internal stress accumulation. Third, extreme precipitation and blizzards. The increase in torrential rains and floods in the south and extreme blizzards in the north significantly increases the probability of non-uniform loads on the module surface, while high humidity accelerates material aging. These three characteristics correspond precisely to the three fatal challenges facing PV power plants: dynamic fatigue, thermomechanical stress, and non-uniform ultimate load. Ultra-large modules are almost entirely failing in all three dimensions.   The Physical Dilemma of Ultra-Large Modules: When Area Expansion Meets Natural Laws Ultra-large modules, measuring 2384mm × 1303mm and above, have a total area of ​​3.1㎡ and above, representing at least a 15% increase in area compared to the industry standard module'...