We Provide Innovative Solar Energy Solutions

[Sunjoy BESS 10ft All-in-One Design] A fully integrated, pre-assembled 10-foot container housing high-voltage 768V LiFePO4 battery banks, a high-power inverter system (375Kw / 500Kw), and utility controls in one compact footprint.

[Mega Scalability up to 1MWh] Available in two massive configurations—942Ah (780KWh) and 1256Ah (1MWh)—providing dependable, utility-scale power architecture for commercial sites, industrial factories, and microgrids.

[Smart EMS & Remote Operation] Equipped with a proprietary, intelligent Energy Management System (EMS) for remote monitoring, real-time telemetry, automated peak-shaving, and smart grid optimization.

[Advanced Fire Suppression & Safety] Built with an integrated, intelligent safety fire suppression system alongside comprehensive multi-layer hardware BMS protections for maximum operational security.

[Ultimate Input Hybrid Versatility] Natively engineered for extreme flexibility; features direct high-voltage PV solar input (up to 480Kw), standard grid injection/input, and a dedicated diesel generator interface for reliable 24/7 backup.

[Customizable Liquid or Air Cooling] Can be configured with either an advanced liquid-cooling system for enhanced thermal uniformity or an ultra-reliable air-cooling system to match your specific environmental and budget requirements.

The Ultimate Industrial Energy Solution: Sunjoy BESS

The Sunjoy BESS 10ft All-in-One Containerized Energy Storage System represents the pinnacle of multi-source hybrid power management. Combining ultra-dense high-voltage 768V Lithium Iron Phosphate (LiFePO4) battery banks, industrial-grade power conversion systems (PCS), and smart infrastructure into a standardized 10-foot transportable shipping container, Sunjoy BESS delivers a true plug-and-play solution for megawatt-level energy autonomy.

Smart Operations with Built-in Intelligent EMS & Fire Safety

Every Sunjoy BESS comes equipped with our advanced, in-house Smart Remote EMS (Energy Management System). This intelligent operating network allows operators to monitor cell health, system efficiency, and performance statistics remotely over Wi-Fi/RS485. The EMS actively manages grid-tied scheduling, peak shaving, and load levelling to slash energy costs. For ultimate on-site protection, the unit includes an autonomous, intelligent fire suppression system engineered to respond instantly to any thermal anomalies, guaranteeing the highest standard of corporate and industrial safety.

Flexible Hybrid Integration & Tailored Thermal Management

Designed to serve as the absolute backbone of microgrids and commercial power networks, Sunjoy BESS effortlessly bridges multiple power inputs. It accommodates direct high-power PV solar layouts (up to 480Kw via multi-channel MPPT), clean grid inputs, and comes equipped with an integrated dedicated diesel generator port to ensure zero-downtime backup during extended blackouts. Understanding that environment dictates configuration, Sunjoy BESS allows clients to freely select between an advanced Liquid Cooling System for optimized cell lifespan and high-efficiency heat dissipation, or a precision Air Cooling System tailored for low-maintenance, reliable climate control.

Battery Pack Parameters

• System Brand: Sunjoy BESS

• Battery Chemistry: Lithium Iron Phosphate (LiFePO4)

• Nominal System Voltage: 768V

• Operating Voltage Range: 690V – 840V

• Charge Cut-off Voltage: 876V

• Discharge Cut-off Voltage: ≤ 600V

• Model Configurations:

  • 780KWh Variant: 942Ah Capacity / 780KWh Total Energy

  • 1MWh Variant: 1256Ah Capacity / 1MWh (1000KWh) Total Energy

Solar PV Input Parameters

• Maximum Solar Input Power: 360Kw (780KWh Model) | 480Kw (1MWh Model)

• Maximum PV Voltage Tolerance: 950 Vdc

• MPPT Operating Voltage Range: 250V – 850 Vdc

• Maximum PV Input Current: 200A * 3 Channels (780KWh) | 200A * 4 Channels (1MWh)

AC Parameters (On-Grid / Off-Grid)

• Rated AC Power Output: 375Kw (780KWh Model) | 500Kw (1MWh Model)

• AC Voltage Output Configuration: 400Vac / 230Vac (Three-Phase: L1/L2/L3/N/PE)

• Rated Operational Frequency: 50Hz / 60Hz Auto-Sensing

• Maximum AC Current Output: 560A (780KWh Model) | 750A (1MWh Model)

• Automatic Grid Switching Time: < 10ms (Uninterrupted Power Transition)

Systems & Safety Features

• Energy Management: Built-in Smart EMS (Remote Monitoring, Wi-Fi & RS485 Communication)

• Fire Protection: Integrated Autonomous Intelligent Fire Suppression System

• Thermal Management Options: Customized Liquid Cooling System OR Air Cooling System (Customer Selectable)

• Auxiliary Inputs: Integrated Diesel Generator Port (Supported)

Structural & Environmental Parameters

• Container Housing Frame: Standardized 10-Foot Shipping Container All-in-One Cabinet

• Physical Dimensions (W x H x D): 2991 x 2438 x 2896 mm (117.76 x 95.98 x 114.02 inches)

• System Approximate Weight: 9,300 kg / 20,503 lbs (780KWh) | 10,500 kg / 23,150 lbs (1MWh)

• Enclosure Protection Rating: IP65 Weatherproof & Dustproof

• Operating Temperature Limits: Charging: 0°C to 45°C | Discharging: -20°C to 55°C

• BMS Thermal Cut-off Threshold: High-Temp Cut-off at 65°C (149°F) | Reconnect at 55°C (131°F)

• Maximum Operational Altitude: ≤ 2000 meters