Against the backdrop of accelerating global energy transition and widespread integration of distributed renewable energy, remote overseas regions-including islands, mining areas, communities, and industrial parks-commonly face challenges such as weak grid infrastructure, unstable power supply, and high expansion costs. As a preferred solution for locally consuming photovoltaic green electricity and ensuring reliable power delivery, microgrids are emerging as a core strategy for energy development in off-grid and weak-grid areas worldwide. Recently, Xiehang Energy Storage's 209kWh integrated photovoltaic-storage-charging cabinet has been successfully deployed across multiple overseas microgrid projects. Leveraging its integrated design and self-developed EMS intelligent dispatch system, the cabinet enables seamless coordination among solar generation, energy storage, and DC charging, delivering an autonomous distributed energy solution for power-deficient regions and continuously advancing global energy transformation.
Overseas microgrid projects are typically located in areas without or with weak grid connectivity, characterized by complex natural environments, limited construction conditions, and insufficient operational personnel. These factors impose strict requirements on equipment integration, delivery speed, and operational reliability. Traditional decentralized assembly solutions suffer from long construction cycles and poor system coordination, making them unsuitable for rapid deployment and real-world operation. The Xiehang 209kWh integrated cabinet features a prefabricated, all-in-one design that consolidates photovoltaic inverters, energy storage units, DC fast charging, distribution protection, and energy management within a standard outdoor enclosure. Fully tested under all operating conditions before shipment, the unit requires only hoisting, wiring, and grid connection commissioning upon arrival at site, significantly reducing construction time and simplifying on-site installation and debugging-ideal for overseas projects with tight schedules and limited manpower.
As the "intelligent brain" of the entire system, Xiehang's proprietary EMS (Energy Management System) plays a central role in energy dispatch. It collects real-time data on photovoltaic output, battery state-of-charge (SOC), charging load, and grid status, enabling millisecond-level energy allocation decisions and automatic switching between various operating modes-including PV self-consumption priority, peak-valley arbitrage, demand-side management, and emergency off-grid backup. During periods of ample sunlight, photovoltaic power is prioritized to charge batteries and meet charging loads; surplus energy is stored. When solar output fluctuates or during grid peak hours, the battery automatically discharges to compensate, smoothing out intermittent PV fluctuations and maximizing green energy utilization. In the event of grid failure, the system rapidly triggers seamless islanding, forming an independent microgrid to ensure continuous power supply to critical loads. Built-in EMS functions such as peak shaving, load management, fault alerts, and remote monitoring support cloud-based remote operations, allowing overseas project owners to achieve automated and intelligent microgrid operation without complex supporting infrastructure.
On the hardware side, the 209kWh cabinet uses high-safety A-grade lithium iron phosphate cells paired with liquid-cooling thermal control, ensuring excellent temperature uniformity and effectively extending battery cycle life while maintaining operational safety. The cabinet integrates PCS inverters and high-power DC charging modules, supporting both grid-connected and off-grid operation modes, making it highly adaptable to diverse microgrid applications such as community power supply, mining support, charging stations, and campus energy hubs. Designed specifically for challenging overseas climates featuring high temperatures, humidity, and large diurnal temperature swings, the product has undergone comprehensive optimization in structural protection, thermal management, and electrical safety. It has passed multiple international safety and electrical certifications, complies with regional grid standards, and meets entry requirements for microgrid projects across Southeast Asia, Africa, Latin America, and beyond.
To accommodate varying project-specific conditions-including solar irradiance, load profiles, and charging demands-Xiehang Energy Storage offers customized solutions, allowing flexible adjustment of PV capacity ratios and charging power levels. The system supports multi-cabinet parallel expansion, enabling gradual evolution from standalone microgrids into larger-scale integrated energy systems. The recently deployed overseas projects cover diverse scenarios such as power supply for remote communities, small-scale mining site support, and integrated energy stations on islands. Customers can achieve peak shaving and valley filling through coordinated operation of photovoltaic, storage, and charging systems, reduce electricity costs, enhance local solar power consumption capacity, decrease reliance on diesel generators, lower carbon emissions, and build a green energy replenishment network.
Leveraging its continuously evolving product portfolio, Xiehang Energy Storage has established a multi-tiered international product system, including off-grid home battery packs, portable PV storage kits, commercial and industrial energy storage cabinets, and 209kWh and 261kWh integrated photovoltaic-storage-charging cabinets. These solutions meet energy storage needs across residential, outdoor, commercial, and microgrid applications, with customer networks spanning over a hundred countries and regions. A responsible official from Xiehang Energy Storage noted that the core energy challenge in many overseas regions lies in the lack of low-cost, highly reliable, and easily deployable integrated microgrid equipment. The successful large-scale deployment of the 209kWh integrated photovoltaic-storage-charging cabinet across multiple microgrid projects reflects market recognition of the product's stability and solution value. Moving forward, Xiehang Energy Storage will continue to optimize grid-forming control, high-temperature adaptability, and localized operation and maintenance capabilities, delivering standardized yet customizable photovoltaic-storage-charging microgrid solutions. The company aims to further expand into the global distributed renewable energy market, empowering more regions to achieve stable power supply and low-carbon development through advanced energy storage technologies.