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Grid Renewable Energy Storage system

The APECUS Grid Renewable Energy Storage system is an intelligent, modular power solution that seamlessly integrates lithium‑ion batteries, PV, and bidirectional energy storage conversion. Designed for maximum flexibility, it supports grid‑connected, off‑grid, and UPS applications, while also delivering reactive power compensation and harmonic suppression.

By combining renewable energy, energy storage, and smart control in one system, GRES provides users with clean, silent, highly reliable, and secure power. Easy to install and operate, it is a future‑ready solution for sustainable energy needs.

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Description

System Components

PCS Energy Storage Converter
The bidirectional AC/DC converter can realise bi‑directional conversion from DC to AC and AC to DC, which can either convert AC to DC for charging the battery, or convert DC to AC to supply power to the load or feed back to the grid.

Li‑ion Battery Module
The main components of the system consist of safe, high‑efficiency, long‑life lithium iron phosphate cells connected in series and parallel to form a battery module, and multiple modules connected in series to form a battery cluster.

Battery Management System
The core component of the system effectively protects the battery from over‑charging, over‑discharging, over‑current, etc., and at the same time manages the equalisation of the battery cells to ensure the safe, reliable and efficient operation of the whole system.

Monitoring System
System operation data monitoring, operation strategy management, historical data logging, system status logging, etc.

Air Conditioning System
The battery cabinet integrates 5W industrial air conditioner to meet the smooth operation of the system in different environments and prolong the service life of the system.

System Protection
The system as a whole is designed to IP54.

  • Safety and Reliability
    • High quality LiFePO₄ battery cell.
    • Integrated air‑conditioning system to ensure a good operating environment for the battery, prolonging system life and improving system stability.
    • IP54 design for safe and reliable operation in harsh environments.
    • PCS and battery pack series design prevent loop current and improve system reliability and maintainability.
    • BMS and AC and DC multi‑layer protection for a more secure system.
  • Efficiency and Convenience
    • PCS and battery system adopt modular design, easy to install, maintain, and expand capacity.
    • Solar and oil engine direct access, enabling intelligent control of multiple energy sources.
    • All‑in‑one equipment, fixed or vehicle‑mounted, easy to move.
    • Remote monitoring, equipment management, remote troubleshooting, and data analysis.
  • Cost Optimization
    • Multi‑functional uninterruptible power supply with off‑grid capability, dynamic capacity expansion, peak shaving and valley filling to optimize power consumption patterns, reactive power compensation, harmonic suppression, and improved three‑phase imbalance, achieving multi‑energy complementary and scientific configuration.
    • Small size and light weight, saving floor space and installation cost.
    • Long service life, low failure rate, low operation and maintenance cost.
    • Maximum use of green energy, reducing electricity costs.
  • Rated output power from 25 kW to 200 kW, with maximum output up to 220 kW (model-dependent)
  • High-efficiency system with maximum efficiency up to 95%
  • Three-phase AC output (3W+N+PE), supporting grid-connected and off-grid operation
  • Supports AC 380/400 V, 50/60 Hz grid, with power factor adjustable from –0.9 to +0.9
  • Integrated bidirectional PCS enables seamless AC/DC and DC/AC energy conversion
  • Supports solar PV integration with dual MPPT inputs (optional)
  • Uses safe and long-life LiFePO₄ batteries, expandable from approximately 41 kWh to 307 kWh
  • Battery life ≥ 6000 cycles at standard operating conditions
  • Modular design for easy installation, maintenance, and flexible capacity expansion
  • Comprehensive protection including AC/DC surge protection, insulation monitoring, grounding, and anti-islanding
  • IP54-rated enclosure for reliable operation in harsh environments
  • Wide operating temperature range from –20°C to +55°C (with derating)
  • Integrated industrial air-conditioning for battery thermal management
  • Built-in HMI display with support for remote monitoring and system management
  • Supports LAN, RS485, and CAN communication with Modbus TCP/RTU and CAN 2.0B protocols
  • Ideal for peak shaving, backup power, renewable energy integration, microgrids, and mobile energy storage

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