Amid the global wave of transportation electrification, a large number of overseas charging stations, industrial park sites, remote mining areas, and islands face the same pressing challenge: local grid capacity is insufficient and power supply is unstable. To deploy high-power fast charging, they often need to incur high costs for grid capacity expansion and upgrades, while some grid-free areas may not even have the basic conditions to build a station. Traditional charging stations are highly dependent on municipal power grids, with high electricity costs and poor power supply flexibility. Once a power outage occurs, the entire site comes to a standstill. To address the energy replenishment pain points of overseas weak-grid and grid-free sites, Xiehang Energy Storage has launched the 209 kWh PV-Storage-Charging Integrated Cabinet, which deeply integrates PV connection, energy storage units, and DC fast charging. Relying on its self-developed EMS energy management system, it enables coordinated scheduling of PV, storage, and charging, helping various overseas sites break free from grid constraints, achieve energy independence and controllability, and providing integrated implementation solutions for overseas microgrids, fleet charging stations, and green power projects in industrial parks.
Unlike the traditional model of separately procuring PV, energy storage, and charging piles and assembling them on site, the Xiehang 209 kWh PV-Storage-Charging Integrated Cabinet adopts a highly integrated cabinet design. It integrates battery modules, a BMS battery management system, a PCS inverter, DC fast charging modules, an EMS energy management platform, and fire protection and temperature-control protection units into a single outdoor cabinet. Commissioning and joint commissioning are completed before shipment, greatly reducing the complexity of on-site construction, wiring, and integration. When deployed, the system only needs to be paired with PV modules to quickly build an independent energy replenishment unit, shortening the site construction cycle. It is particularly well suited to overseas markets where engineering labor is scarce and local construction capabilities are limited. The entire unit supports outdoor installation and offers excellent dust and water protection. Its structure and heat dissipation have been optimized for complex climate conditions such as high temperature and high humidity in Southeast Asia, sandstorms in the Middle East, and salt spray on islands, enabling long-term outdoor operation in different regions.
The core of the energy storage system uses high-safety Grade A LFP cells with excellent thermal stability. Combined with multi-level electrical protection, full-range temperature control, and an intelligent fire protection system, it builds multiple layers of safety protection. The built-in BMS monitors the voltage and temperature of each cell string in real time, performs active balancing, suppresses cell degradation, and ensures long-term stable system operation, meeting the reliability requirements of long-cycle overseas project operation. The entire system supports seamless switching between grid-connected and off-grid modes, which is also key to its adaptability to diverse overseas sites. When the grid is normal, it prioritizes consuming PV-generated green power; excess electricity is stored in the energy storage system and released during charging peak hours to smooth the high-power impact of fast charging, reduce the site's demand charges, and enable peak-valley arbitrage. In the event of a grid fault or in grid-free scenarios, it automatically switches to off-grid microgrid mode, relying on PV + storage to continuously provide fast-charging power, ensuring uninterrupted energy replenishment and truly achieving energy independence.
The "brain" of the entire system is Xiehang's self-developed EMS energy management system, which is also the core of efficient coordinated operation of PV, storage, and charging. The EMS can collect multi-dimensional data in real time, including PV generation power, energy storage SOC, charging pile load, and grid status, and automatically generate optimal dispatch strategies based on sunlight conditions and vehicle charging demand. When sunlight is sufficient, PV power is prioritized to directly supply fast charging, with excess electricity stored in the energy storage system. When sunlight is insufficient, at night, or when charging vehicles arrive in concentrated numbers, the energy storage system discharges to supplement power, preventing high-power fast charging from instantly overwhelming a weak grid. The platform supports remote cloud monitoring, allowing overseas operators to view power generation, energy storage status, charging orders, and equipment alarms through the backend, remotely adjust parameters, manage multiple sites across regions, and reduce overseas O&M costs. At the same time, the system reserves standard communication interfaces and can connect to customers' own energy platforms to meet the intelligent management needs of projects.
In terms of application scenarios, the Xiehang 209 kWh solar-storage-charging integrated cabinet offers exceptional adaptability. At standalone charging stations along overseas highways, logistics fleet depots, ports and terminals, mining camps, and island industrial parks, this equipment can serve as an independent energy replenishment unit. In industrial and commercial parks already connected to the grid, it functions as a supporting green power facility, simultaneously serving factory power consumption and employee vehicle charging, while balancing energy savings and cost reduction for the plant with EV charging needs. For microgrid projects, multiple 209 kWh integrated cabinets can be connected in parallel for capacity expansion and flexibly added according to the scale of the site, gradually expanding from a small charging station into a megawatt-level microgrid system. This provides projects with flexible investment options, allowing operators to avoid making a massive upfront investment.
For overseas site operators, the value of this integrated solution lies in multiple dimensions, including economics, compliance, and operations and maintenance. On the one hand, it maximizes the consumption of solar-generated green electricity, reduces reliance on purchased grid power, and lowers long-term electricity costs. On the other hand, it avoids the huge investment required for grid capacity expansion, enabling fast-charging services to be deployed at low cost in areas with weak grid infrastructure and opening up remote energy replenishment markets that were previously difficult to develop. The product has completed multiple international safety certifications, meets the customs clearance and grid-connection access requirements of different countries, is compatible with mainstream overseas voltage systems and charging protocols, and can meet the fast-charging needs of mainstream new energy vehicles.
According to the head of Xiehang Energy Storage's overseas business, the electrification process in many overseas regions is bottlenecked by power supply. Many places do not lack charging demand; what they lack is stable, low-cost, and independently operable power supply. The Xiehang 209 kWh solar-storage-charging integrated cabinet is essentially not a simple charging device, but a self-sufficient small energy center that delivers solar power generation, energy storage buffering, and high-power fast charging as an integrated package, freeing sites from passive dependence on the grid.
At present, Xiehang Energy Storage has formed a complete product portfolio covering residential off-grid energy storage, PAYGO inclusive energy storage, portable energy storage, 209 kWh and 261 kWh solar-storage-charging integrated cabinets, and prefabricated industrial and commercial energy storage containers. Its solutions have been implemented in more than 100 countries and regions across Southeast Asia, Africa, Europe, Latin America, and beyond. Going forward, Xiehang Energy Storage will continue to iterate its EMS dispatching algorithms, optimize its liquid-cooled temperature control solutions, improve system efficiency under high ambient temperatures, and continuously enhance its localized technical support, spare parts supply, and training systems, providing overseas customers with one-stop energy services ranging from solution design and equipment delivery to long-term operations and maintenance.
The global energy transition is not only about the widespread adoption of clean energy at the household level; the localization and greening of transportation energy replenishment infrastructure is equally important. The Xiehang 209 kWh solar-storage-charging integrated cabinet uses integrated technology to connect the "solar-storage-charging" chain, continuously unlocking energy replenishment potential in overseas sites with weak or no grid access. With stable and reliable Chinese energy storage solutions, it helps overseas sites achieve energy independence and promotes the widespread adoption of transportation electrification in more regions.