Xiamen HarmoPower Successfully Delivers First Flexible Mobile Energy Storage System

November 27, 2025 — The HLLM4170 centralized flexible mobile energy storage system, independently developed by Xiamen HarmoPower Tech, Ltd. (hereinafter referred to as “Xiamen HarmoPower”), was successfully delivered and officially began discharging power to the load end.

The successful deployment of this system marks a key technological breakthrough for Xiamen HarmoPower in the field of mobile energy storage, providing a flexible and reliable solution for the large-scale and efficient utilization of new energy.

High Efficiency & Reliability with Industry-Leading Energy Density

The HLLM4170 mobile energy storage system integrates MMB1.0 centralized flexible energy storage technology and offers the following core advantages:

1.A standard 20-foot container houses a 2MW/4.17MWh power capacity, achieving industry-leading energy density.

2.Has completed over 2,500 kilometers of real-world road testing, passing stringent vibration and environmental tests to adapt to various complex mobile scenarios.

3.Employs a modular flexible architecture and multiple safety designs to effectively prevent overcharge and over-discharge.

4.System round-trip efficiency remains stable between 87% and 90%, balancing economy and high-efficiency operation.

Diverse Applications Empowering Flexible Energy Dispatch

This mobile energy storage system is suitable for various application scenarios:

1.Mobile Green Power Direct Supply: Collects and stores low-cost renewable energy such as curtailed wind and solar power, then directly supplies peak shaving power to large electricity consumers like data centers and smelting plants via mobile energy storage vehicles, enabling efficient utilization of clean energy.

2.Temporary Power Supply: Provides flexible and stable temporary power support for construction sites, mining areas, oil well drilling, and other scenarios where obtaining temporary power is difficult or grid coverage is insufficient.

3.EV/Heavy-Duty Truck Charging Supplement: Offers high-power mobile charging services for scenarios with limited charging capacity or hard-to-reach grids, such as large parking lots and mining-area electric heavy-duty truck stations, alleviating pressure from insufficient charging infrastructure.

4.Emergency Power Support: Enables rapid deployment to provide reliable power backup during emergencies or high-load scenarios, including power grid maintenance, emergency rescue operations, and concentrated charging at highway service areas during holidays.

5.Seasonal Substation Support: Deploys mobile energy storage vehicles at critical grid nodes during peak electricity consumption seasons to alleviate seasonal transformer overload issues and enhance regional grid operational reliability.

6.Green Power Carbon Footprint Traceability: Precisely connects green power supply with consumption through the mobile energy storage system, providing reliable data support for the accurate tracing and verification of carbon emission rights.

Performance Benchmarking Highlights Comprehensive Advantages

The following is a comparison of key parameters between the mobile energy storage products of Xiamen HarmoPower Tech, Ltd. and those of its major peers:

In his project, the system successfully stored wind and photovoltaic power from the Zhangjiakou region and directly supplied it to high-energy-consumption users such as data centers, achieving efficient value conversion from "curtailed wind and solar power" to "green power for computing."

This delivery marks a significant milestone in the practical application of mobile energy storage by Xiamen HarmoPower Tech, Ltd. Going forward, the company will continue to advance the large-scale deployment of clean energy storage and transportation solutions, providing robust support for building a flexible and green modern energy system.