GSL ENERGY 120kWh High-Voltage Rack-Mounted Energy Storage Battery — Asia Project

Installation Date: September 2025

System Model: GSL High-Voltage Rack Energy Storage System (Individual Cell Specification: 51.2V 200Ah)

System Configuration and Capacity: - Single-unit Capacity: 51.2V × 200Ah = 5.12 kWh.

Parallel/Series-Parallel Configuration: This solution employs 12 × 51.2V/200Ah battery modules (rack-mounted), with a total rated capacity of approximately 122.88 kWh (rounded to the 120 kWh level for external presentation).

System Scalability: Supports on-demand expansion by adding multiple parallel racks, enabling capacity scaling to 240kWh, 360kWh, or higher.

Application Scenarios: - Peak-valley regulation and load leveling for small-to-medium commercial buildings; - Industrial load balancing and backup power; - Grid-connected with rooftop PV to enhance self-consumption rates and power stability; - Microgrids and emergency power supply in remote areas.

1. High Energy Density and Modular Design: 51.2V/200Ah modular batteries facilitate rack-based deployment, minimizing footprint and simplifying transportation and on-site installation. Modular design also enables flexible maintenance and replacement.

2. Safety and Certifications: GSL series batteries hold multiple international certifications (e.g., UL-1973, UL-9540A, IEC62133, IEC62219, CE, UN38.3, MSDS). Utilizing a lithium iron phosphate chemistry, the design ensures excellent thermal stability and cycle life.

3. High Reliability and Long Lifespan: Designed for high cycle counts and controlled deep discharge, meeting the high reliability demands of continuous commercial and industrial operation.

4. Intelligent Battery Management System (BMS): Real-time monitoring of voltage, current, SOC, temperature, and other parameters. Features cell balancing protection, short-circuit/over-temperature/over-charge/over-discharge protection, and communication interfaces (CAN/RS485/Modbus), ensuring compatibility with industry-standard inverters.

5. Simplified Maintenance and Field Expandability: Rack design supports front-end maintenance, featuring modular wiring and quick-disconnect devices to minimize maintenance downtime.

1) Site Survey and Design

Assess on-site load curves, PV output (if applicable), power quality, and available space;

Select suitable rack locations (indoor or outdoor weatherproof enclosures/machine rooms), ensuring adequate heat dissipation and ventilation;

Design AC power distribution and DC bus connection schemes, confirming rated voltage compatibility and communication protocols between inverters/PCS and batteries.

2) Equipment Selection and Configuration

Batteries: 12 units of 51.2V/200Ah high voltage battery modules;

Inverter/PCS: Select converters compatible with high-voltage systems (recommended to confirm model compatibility with GSL engineering team);

Protection devices: Including DC circuit breakers, fuses, overcurrent/overvoltage protection, grounding devices, etc.;

Monitoring system: Remote EMS platform integration supporting energy consumption statistics, alarms, and O&M records.

3) Installation and Commissioning

Rack foundation anchoring, module mounting, and electrical connections;

BMS communication configuration with PCS/inverter, SOC calibration, and full-battery discharge/charge testing;

Grid connection testing (if applicable) and safety function verification (short-circuit, over-temperature, alarm procedures, etc.);

On-site training and delivery documentation (warranty card, operation manual, safety precautions).

1. Reliable Business Continuity: Rapidly switches to backup power during utility grid disturbances or outages, ensuring continuous supply to critical loads;

2. Reduced Electricity Costs: Significantly lowers electricity bills and demand charges through peak-valley arbitrage and peak shaving;

3. Enhanced Renewable Energy Utilization: Coordinates with PV systems to minimize curtailed solar power and boost energy efficiency;

4. Scalable Investment Protection: Modular and rack-based design facilitates future expansion, safeguarding initial investment.

Scalability Recommendations

Capacity Expansion: Add identical racks to existing infrastructure, effortlessly scaling total capacity to 240kWh or 360kWh;

Energy Management Optimization: Implement advanced EMS strategies (e.g., load forecasting and intelligent charge/discharge scheduling) to enhance economic efficiency;

Hybrid Energy Storage: Integrate complementary technologies like supercapacitors or hydrogen to address ultra-short duration high-power demands;

O&M Contracts: Recommend long-term operation, maintenance, and performance guarantee agreements (e.g., 1-year/3-year/5-year terms) covering routine inspections, remote diagnostics, and replacement coverage.

Q: Why choose 51.2V/200Ah single-module units instead of higher-voltage modules?

A: The 51.2V module voltage is better suited for modular rack designs, facilitating safety management and balancing control. It also offers greater flexibility in transportation and on-site installation. High-voltage systems achieve high energy output at the system level through series-parallel combinations.

Q: What is the system lifespan and warranty?

A: GSL products feature industry-grade cycle life and warranty policies (refer to specific contract terms). Common warranties include a 10-year limited warranty or a 15-year extended warranty negotiated per project.

Q: How is grid connection and inverter compatibility ensured?

A: Protocol and voltage matching are verified during the project design phase. GSL supports common communication protocols (CAN, RS485, Modbus) and provides on-site engineering support for joint commissioning.