Recently, MECC has successfully commissioned a self‑used commercial and industrial (C&I) energy storage system for an overseas enterprise. The project features a total planned capacity of 1150kW/2150kWh, while the Phase I installation reaches 575kW/1075kWh. The system consists of 5 sets of MECC 115kW/215kWh all‑in‑one energy storage cabinets and outdoor grid‑tied/off‑grid electrical cabinets.
Beyond conventional peak‑shaving and energy optimization functions, the solution supports seamless multi‑mode switching between grid‑tied and off‑grid operation for emergency backup power. It provides continuous backup power for 30 minutes with an effective backup capacity of 287.5kWh. Since commissioning, the system has delivered stable and reliable on‑site power supply, effectively reducing the client's manufacturing and operational energy costs, setting a benchmark for integrated digital and low‑carbon development in the industry.
Empowering Core Clients with High‑efficiency Energy Supply
The project is designed for the parallel operation of up to 10 outdoor all‑in‑one cabinets, achieving a maximum installed capacity of 1.15MW (115kW × 10). It supports off‑grid parallel connection at multiple grid access points with strong load adaptability. The system can steadily power fire water pumps and various firefighting electrical equipment, serving as a reliable replacement for traditional fire‑safety diesel generators.
By adopting energy storage instead of conventional diesel generators for emergency fire‑protection power supply, the solution delivers multi‑dimensional value. It fully meets emergency backup power requirements, realizes peak‑valley tariff arbitrage for daily power consumption, and achieves virtual transformer capacity expansion, effectively improving the transformer load capacity and maximizing the utilization of existing power infrastructure.
Technology Empowerment for Cost Reduction and Efficiency Improvement
The project adopts MECC 115kW/215kWh all‑in‑one energy storage cabinets, featuring outstanding versatility and scalability:
1. Fast system design, decentralized deployment and centralized intelligent dispatching;
2. Flexible capacity expansion, supporting multi‑cabinet AC parallel operation;
3. Dual‑mode grid‑tied/off‑grid design to support peak‑valley arbitrage and critical load backup scenarios;
4. Full modular architecture for convenient on‑site inspection and low maintenance costs;
5. Cloud monitoring and mobile APP remote management, enabling simple and efficient system operation.
The core PCS (Power Conversion System) deployed in the all‑in‑one cabinets adopts MECC's fully verified and mature
C&I energy storage modules. MECC string‑type modular PCS products deliver comprehensive technical advantages:
1. Standard string‑type modular design, applicable to full scenarios including power generation side, grid side and commercial & industrial energy storage;
2. Fully compliant with domestic and international grid connection standards, certified with GB standards, CE and multiple European regional certifications;
3. Compatible with multiple battery chemistries, including lithium iron phosphate, sodium‑ion and lead‑carbon batteries;
4. Equipped with mature grid‑tied, off‑grid and multi‑unit parallel algorithms, ensuring superior grid adaptability and stable microgrid operation;
5. High operational reliability verified by long‑term field operation across diverse application scenarios.
Future Outlook
Leveraging its industrial advantages, MECC continuously accelerates product R&D and technological innovation, strengthens global service capabilities, and delivers leading products and customized energy storage solutions worldwide. Supported by robust technical strength, strict quality control and forward‑looking global layout, MECC provides valuable practical experience for the high‑quality development of China's energy storage industry.
In the future, MECC will continue to lead industrial upgrading, empower the green, intelligent and diversified development of the global energy storage industry, and contribute more to the global energy transition and carbon neutrality goals.