All-Liquid-Cooled Architecture Solves Four Key Operational Challenges in Solar-Storage Ultra-Fast Charging

At the 19th International Photovoltaic Power Generation and Smart Energy Conference (SNEC Shanghai), held from June 3 to 5, 2026, ultra-fast solar-plus-storage charging technology emerged as a focal point. Currently, large-scale deployment of public solar-plus-storage ultra-fast charging stations faces four core challenges: First, high-power charging generates significant heat, and traditional air-cooling solutions struggle to manage thermal rise during continuous output above 600kW, leading to unstable power delivery, reduced charging efficiency, and accelerated component aging. Second, poor adaptability to extreme environments limits operational stability—outdoor equipment with insufficient ingress protection is vulnerable to sandstorms, high temperatures, high humidity, and heavy rain. Third, high total cost of ownership: conventional equipment typically lasts only 8–10 years and suffers from high energy consumption, excessive noise, and frequent maintenance needs, squeezing station profitability. Fourth, low coordination efficiency among photovoltaic (PV), storage, and charging systems due to a lack of unified dispatching, hindering optimal utilization of peak-valley arbitrage and grid-support capabilities. To address these challenges, Star Charge unveiled an AC-bus integrated PV-storage-charging-discharging system built on a fully self-developed liquid-cooling architecture. The system employs both immersion liquid cooling for power cabinets and full-unit liquid cooling for terminals, enabling uniform heat dissipation across all critical components. It supports sustained 720kW high-power output and maintains low temperature rise and minimal losses even under ultra-high current conditions of 1,200A. With an overall IP65 rating, the system offers fully sealed dust- and water-proof protection, ensuring stable operation in extreme conditions such as sandstorms, high heat, high humidity, and torrential rain. Its design lifespan extends to 15 years—50% longer than the industry average—and features silent, energy-efficient operation, significantly reducing O&M and energy costs. To enhance system-level coordination, Star Charge also showcased its eBox-261 cabinet-type energy storage system. Built on a fully self-developed “cloud-edge-device” stack architecture, it integrates five AI-powered large models: - **CloudSafe** enables intelligent equipment health checks and real-time monitoring; - **ProfitOps** uses AI to forecast electricity prices, load profiles, and renewable generation for revenue optimization; - **BionicBalance** achieves adaptive cell balancing throughout the system’s lifecycle; - **Lingxi** supports personalized revenue strategies; - **SmartPatrol** shifts maintenance from reactive repairs to proactive prevention. This system seamlessly integrates with the PV-storage-charging-discharging platform, enabling intelligent coordination among PV generation, energy storage, EV charging, and the grid. It supports diverse applications including peak-valley arbitrage, demand response, and off-grid/semi-off-grid backup power supply. Leveraging its Taiyi Tri-Network Convergence Platform, Star Charge has already validated its end-to-end “cloud-edge-device” capabilities across thousands of public charging sites nationwide, enabling remote monitoring, intelligent dispatching, predictive maintenance, and energy optimization. Moving forward, the company will continue advancing its full liquid-cooling architecture, AC-bus systems, and intelligent coordination technologies—driving solar-plus-storage ultra-fast charging stations from merely “functional” to “high-performing, durable, and economically sustainable” and accelerating the integration of next-generation power systems with new-energy transportation.