Shanghai, June 11, 2025 – At the SNEC 2025 International Photovoltaic Power Generation and Smart Energy Exhibition, Sungrow unveiled a comprehensive lineup of nearly 30 cutting-edge energy solutions, strategically aligned with its vision to build a smart, low-carbon, high-efficiency power ecosystem. The exhibit spanned three major themes: Energy Bases, Zero-Carbon Parks, and Zero-Carbon Homes, all powered by innovations in AI modernization, proactive safety, and grid-forming architecture.
Revolutionizing Utility-Scale Solar: World’s First 400kW+ String Inverter
Sungrow introduced the SG465HX, the world’s first 400kW+ string inverter, setting a new benchmark in power density and grid compatibility. Designed to meet the evolving demands of large-scale PV stations, SG465HX incorporates:
- Next-gen high-voltage SiC components, third-generation thermal technology, and advanced magnetic materials
- A 28% increase in power density
- A 0.2% improvement in conversion efficiency
- Lifecycle gains of over 90 million kWh for a GW-scale power plant
System cost optimization is another hallmark of this inverter. With support for 5MW+ sub-array configurations and elevated AC/DC voltage, the solution reduces cable and MV equipment investment, lowering LCOE by 1.5%.
On the safety front, SG465HX debuts Smart Shutdown 2.0, offering millisecond-level protection using patented mechanical-electronic hybrid switches. It also includes intelligent fault isolation and lightning protection during unpowered stages, addressing long-standing gaps in DC-side protection.
Pioneering PV Grid-forming Capabilities
SG465HX also marks a leap forward in PV grid-forming. Supporting voltage-source MPPT, the inverter remains operational under extremely weak grids. It enables:
- Millisecond-level inertia and reactive response
- Damping control to stabilize oscillations
- Grid status awareness and seamless grid-follow/grid-forming switching
- Black start and auto-synchronization for grid restoration
These features provide comprehensive protection and active support for a resilient energy grid.
1+X 2.0: World’s First Modular Split Inverter with Upgraded Intelligence
Also unveiled was the 1+X 2.0 modular inverter, a unique hybrid solution combining the benefits of string and centralized inverters. This next-gen system enhances modularity and uptime with:
- 800kW per module, expandable up to 9.6MW by parallel connecting 12 units
- Split-cavity design, placing key components in a top compartment for easy access
- Plug-and-play architecture supported by AI-based self-diagnostics
- Rapid 1-hour module replacement, 97% lower generation loss compared to traditional central systems
Built for durability, it features IP66 protection, ensuring resilience against sandstorms and rain, and is virtually maintenance-free.
The system’s DC safety layer includes:
- A patented fuse protection mechanism for low-current disconnection
- Arc detection and 40ms shutdown via smart combiner boxes
- AI terminal overheating protection, forming a complete proactive DC safety chain
Native DC Coupling & LCOE Optimization
Optimized for native DC-coupled systems, 1+X 2.0:
- Supports longer strings, MPLC communication, and large sub-array designs
- Enables GW-scale savings of ¥29 million in investment
- Saves 74 million kWh through night-time medium-voltage smart shutdown
- Reduces initial CAPEX by over 10%, and improves system conversion efficiency by 5%
Its grid-forming features further include:
- Microsecond-level grid sensing
- Tolerance for 1.8Un transient overvoltage
- Black-start capability and self-built grid support, helping GW projects connect 30 days earlier, gaining up to ¥21 million in extra revenue
PowerTitan 3.0: The World’s Most Advanced AI Energy Storage Platform
Not stopping at PV, Sungrow showcased its latest energy storage innovation – PowerTitan 3.0, the next-generation AC-integrated intelligent storage system designed for utility-scale applications. Available in Flex, Class, and Plus versions, its Plus variant achieves:
- A record-breaking 12.5MWh in a 30-foot container
- Energy density of 500kWh/㎡, the highest globally
- DC-side density of 570kWh/㎡, reducing GWh station land use by 45%
The 3.0 system continues Sungrow’s AC-integrated storage architecture, maintaining high safety and conversion efficiency through features like:
- Integrated DC-AC structure, minimizing conversion layers
- Modular design with 684Ah stacked large cells and SiC-based PCS
- Thermal-electrical isolation, ensuring 96.5% cell efficiency and 99.3% PCS efficiency
- An overall RTE of 93.5%, industry-leading
Smart Software Stack: Powering the Entire Lifecycle
PowerTitan 3.0 integrates a full-stack AI-driven digital layer:
- Lingxi Delivery Platform for intelligent commissioning
- PowerBidder for market-based energy dispatch decision support
- PowerDoctor for predictive maintenance and O&M
This smart matrix covers the entire lifecycle — from construction, deployment, and operations, to market participation. From cell to station, Sungrow’s “native intelligence” redefines how energy storage interacts with the grid.
White Papers Launch: Defining the Future of Grid and DC Safety
To address safety and emerging grid-forming challenges, Sungrow also launched two key industry white papers:
- AI-Based DC Safety White Paper (co-published with CGC):
Introduces a “PDC” triple-layer defense model, shifting the industry from passive defense to proactive AI-based protection of the DC side. - Stem Cell Grid-forming Technology 2.0 White Paper (co-published with TÜV Rheinland):
Proposes an industry-first three-tier collaborative architecture spanning battery–inverter–station, providing robust support for next-gen grid stability.
Conclusion: Sungrow’s Full-Spectrum AI Transformation of Energy Systems
With its 2025 showcase, Sungrow once again reinforces its global leadership in clean energy technology. From the first-ever 400kW+ string inverter to modular grid-forming systems and AI-integrated storage solutions, the company is setting new standards for how solar and storage solutions should perform in the age of intelligence.
By integrating hardware innovation, AI-driven control, and proactive safety, Sungrow not only provides best-in-class products but also inspires a future-ready architecture for global clean energy development.
