Description

21kW Growatt Solar Inverter System with 17.92 kWh Sunergy Battery & 35x585W Bifacial Panels

This robust solar energy solution is engineered to power large residential, commercial, or light industrial setups that require high capacity, reliability, and intelligent energy management. Featuring a Growatt 21kW hybrid inverter, a 17.92 kWh high-capacity Sunergy lithium battery, and 35 premium 585W bifacial monocrystalline solar panels, this system maximizes solar energy capture and storage for superior autonomy and savings.

Note: This product comprises a 21kW Growatt Solar Inverter System, a 17.92 kWh Sunergy Battery, and 35 x 585W Bifacial Panels. The cost of logistics and maintenance is not included.

System Specifications

1. Growatt 21kW Solar Inverter

• Type: Hybrid / Off-grid inverter (Growatt SPF/MIC series)
• Rated Output Power: 21,000W (21kW)
• AC Output Voltage: 230V AC, single or split-phase (model dependent)
• Frequency: 50/60 Hz automatic switching
• Max PV Input Power: Up to 31,500W
• Max PV Input Voltage: ~145V DC
• MPPT Efficiency: Up to 99.5%
• Built-in MPPT Solar Charge Controller
• Output Waveform: Pure sine wave
• Battery Compatibility: Lithium, AGM, GEL (48V typical)
• Communication: Wi-Fi, RS485, GPRS, Growatt Shine app compatible

Features:

• Intelligent load and energy management
• Seamless switching between solar, battery, grid, and generator power
• Active cooling system for optimal performance
• Multiple protections: Over-voltage, short circuit, overheating

2. Sunergy 17.92 kWh Lithium Battery

• Type: LiFePO₄ (Lithium Iron Phosphate)
• Capacity: 17.92 kWh usable storage
• Nominal Voltage: 51.2V
• Cycle Life: Over 6,000 cycles at 80% Depth of Discharge (DoD)

Features

• Battery Management System (BMS): Integrated for safety, monitoring, and performance optimization
• Expandable: Supports additional battery modules for increased capacity
• Benefits: Fast charge, long lifespan, compact design, and superior safety

3. Solar Panels – 35 x 585W Bifacial Monocrystalline

• Total Capacity: 20,475W (20.48 kW nominal)
• Type: Monocrystalline half-cut bifacial cells
• Efficiency: 21.5–22.5%
• Bifacial Gain: 10–20% extra energy from reflected sunlight on rear side
• Durability: Tempered glass, PID resistant, dustproof and weatherproof
• Installation: Roof or ground-mounted; ideal with reflective surfaces to boost bifacial performance

What Can This 21kW System Power?

21kW Growatt Solar Inverter System with 17.92 kWh Sunergy Battery & 35x585W Bifacial Panels are estimated to power the under-listed facilities and appliances.

• Large residential estates and multi-family properties
• Commercial offices, retail stores, warehouses
• Small factories and light industrial units
• Remote or off-grid installations demanding high reliability and capacity

 Key Benefits

• Large-scale electricity bill savings for heavy power users
• Reliable, smart backup with extended autonomy
• Real-time monitoring and control via Growatt Shine app
• Bifacial solar panels capture more energy than traditional panels
• Long-lasting lithium battery technology with high cycle life
• Scalable and modular for future energy needs
• Integration ready for grid-tied and off-grid operation, including generator backup

Ideal Use Cases

• Large residential estates and multi-family properties
• Commercial offices, retail stores, warehouses
• Small factories and light industrial units
• Remote or off-grid installations demanding high reliability and capacity

Flexible Payment Option Available

Do you want to pay in instalments? No problem! We’ve made going solar easier than ever. Click the button below to request a quote and subscribe to our flexible instalment plan today to enjoy uninterrupted power while spreading your payment conveniently.

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