The Sunny Island SI 4.4M-13 by SMA is one of the most reliable solutions for standalone and hybrid energy storage systems.

• Nominal power: 3300W (25°C)
• Peak power: 4400W for 30’ / 4600W for 5’ / 5500W for 3’’
• System voltage: 48V
• Nominal grid voltage: 230V
• Operating frequency: 50/60Hz
• Nominal current: 14.5A (On-Grid)
• Maximum output current (peak): 60A
• Maximum input current: 50A
• Maximum input power: 11.5kW
• Maximum charging current: 75A
• Efficiency: up to 95.5%
• Self-consumption without load: 18W
• Standby consumption: 6.8W
• Protection rating: IP54
• Dimensions: 467 × 612 × 242 mm

Protections & Functions:

• Protection against: short circuit, overload, overheating, deep battery discharge
• Built-in soft start system
• Calculation of state of charge / full charge / balancing
• Generator support
• Battery temperature sensor
• Three-phase systems & parallel operation
• Multi-cluster operation for larger installations
• Communication cables for smart management