Solar Battery Energy Storage System

Professional Energy Storage Systems (BESS) | OEM & ODM Solutions

Our Solar Battery Energy Storage Systems (BESS) capture excess energy from photovoltaic (PV) arrays, optimize self-consumption, smooth renewable intermittency, and provide reliable backup power during grid outages. Built for residential, commercial, industrial, and microgrid deployments, our systems bridge the gap between variable solar generation and constant power demands.

Core Chemistry: Lithium Iron Phosphate (LiFePO4) prismatic cells.

Capacity Range: 5kWh to 30kWh modular residential configurations; scalable high-voltage cabinet systems (up to MWh scales) for commercial and industrial applications.

Operational Modes: Peak shaving, load shifting, self-consumption optimization, and off-grid/backup power.

Cell-Level Safety & Thermal Stability
Safety and chemical stability dictate our material selection. We utilize certified prismatic LiFePO4 cells.

Thermal Behavior: Higher thermal runaway thresholds compared to standard NMC chemistries, maintaining stability in elevated ambient temperatures.

Abuse Tolerance: Engineered to withstand mechanical stress, overcharge conditions, and thermal fluctuations without catastrophic degradation.

Long-Term Performance & TCO Reduction
Cycle Life: Rated for >= 6000 cycles at 25°C with an 80% Depth of Discharge (DOD).

Design Life: 10 to 15 years of continuous operational lifespan.

Capacity Retention: >= 80% nominal capacity retention after standard operational cycles, lowering total cost of ownership (TCO) by minimizing maintenance and replacement overhead.

System Efficiency
Round-Trip Efficiency: Up to 95% system-level efficiency (tested at 0.5C charge/discharge at 25°C), minimizing conversion losses during energy throughput.

Intelligent Battery Management System (BMS)
Each battery cluster integrates a dual-processor hardware-protected BMS that continuously manages:

• Individual cell voltage telemetry and module temperature monitoring.
• Real-time State of Charge (SOC) and State of Health (SOH) calculation.
• Active Protection: Automated isolation and fault cut-off for overcharge, deep discharge, over-current, short circuit, and extreme temperatures (with automatic charging suppression below 0°C).
• Cell Balancing: Passive and active cell balancing algorithms to maintain string voltage consistency over time.

Scalability & Mechanical Design
Modular Architecture: Parallel expansion allows identical battery modules to be added to an existing bank without requiring system redesign or inverter reconfiguration.

Enclosure Specifications: Heavy-gauge, dust-resistant steel enclosures with natural convection or forced-air cooling. IP54 and IP65-rated outdoor cabinet options are available.

Mounting Options: Floor-standing cabinets, wall-mounted units, and 19-inch rack-mounted profiles.

Inverter Compatibility & Communication Protocols
Inverter Brands: Pre-integrated communication libraries compatible with major hybrid and off-grid inverter manufacturers (e.g., Victron, Deye, Growatt, GoodWe, SMA).

Communication Interfaces: CAN 2.0 (for real-time inverter handshaking) and RS485, with optional Ethernet/RS232 telemetry modules.

Strict multi-tier verification protocols govern our production lines to ensure field reliability:

Cell Sorting & Matching: Incoming cells are sorted by open-circuit voltage (within +/- 5mV) and internal resistance (within +/- 1mΩ) to prevent localized cell imbalance.

Module Assembly: Automated busbar welding and torque-monitored fastening to maintain low electrical resistance and secure physical connections.

BMS Hardware Calibration: Firmware flashing, high-voltage insulation testing, and current sensor calibration.

End-of-Line (EOL) Testing: 100% full-load charge/discharge cycling, thermal chamber stress testing, and communication handshake verification prior to crating.

We offer comprehensive custom manufacturing for global distributors, EPC contractors, and energy brands:

Electrical Customization: Voltage scaling (from 48V low-voltage up to 800V high-voltage systems), customized BMS firmware, and protocol mapping for proprietary inverters.

Mechanical Customization: Tailored enclosure dimensions, custom powder coating (RAL color matching), sheet metal thickness, and IP rating upgrades.

Visual Branding: Silkscreen logo printing, customized LCD/LED interface screens, private-label packaging, and localized user documentation.