The Deye SUN-12K-SG04LP3-EU is a 12kW three-phase low-voltage hybrid solar inverter designed for residential, commercial, and small industrial energy systems.
The Deye SUN-12K-SG04LP3-EU is a high-performance 12kW three-phase hybrid inverter designed for customers who require reliable solar power, battery storage, and three-phase electricity supply.
Unlike single-phase hybrid inverters, this model is designed for three-phase electrical systems, making it particularly suitable for larger homes, offices, commercial facilities, workshops, and other properties with three-phase loads.
The inverter integrates solar panels, low-voltage battery storage, utility grid power, and a generator into a single energy management platform. During periods of strong sunlight, solar energy can directly supply connected loads while excess generation can be stored in the battery for use later. When solar production is insufficient, the system can intelligently draw energy from the battery or grid according to the configured operating mode.
During a grid outage, the inverter can provide backup power from the available solar and battery system, helping maintain essential electrical loads. Generator integration also provides an additional backup option for installations with higher energy requirements.
Its advanced MPPT technology optimizes solar energy harvesting from the PV array, while the intelligent battery management functions help control charging and discharging according to system requirements.
The SUN-12K-SG04LP3-EU is therefore an excellent choice for customers looking to reduce grid dependence, maximize solar self-consumption, and maintain reliable power across a three-phase property.
• 12kW rated output power
• Three-phase hybrid inverter
• Low-voltage battery architecture
• Compatible with supported lithium battery systems
• Solar PV, battery, grid and generator integration
• Advanced MPPT solar tracking
• On-grid and off-grid operation
• Intelligent battery charging and discharging
• Reliable backup power during grid outages
• Generator support
• Intelligent energy management
• Remote monitoring through supported communication platforms
• Designed for residential and commercial applications
• Suitable for scalable energy-storage installations
When paired with LONGi
Hi-MO 7 615W bifacial solar panels, the recommended quantity depends on the
customer's daytime energy consumption.
Usage Profile | Recommended | Total PV Capacity |
Basic Daytime Use | 18 panels | 11.07kWp |
Heavy Daytime Use | 24 panels | 14.76kWp |
Basic Daytime Use
18 × 615W =
11.07kWp
Important: These are practical starting-point recommendations, not a substitute for final system design. The final number of panels and string arrangement must be checked against the inverter's maximum PV input power, MPPT voltage range, maximum PV voltage, and MPPT current limits.
The Deye SUN-12K-SG04LP3-EU provides a practical combination of 12kW three-phase power, solar generation, low-voltage battery storage, grid integration, and backup capability.
It is particularly well suited to customers with three-phase properties who want to maximize solar energy during the day while maintaining battery-backed power when grid electricity is unavailable.
When paired with high-output bifacial panels and compatible Deye lithium batteries, it can form a powerful solar-plus-storage system for homes, offices, businesses, and other three-phase installations.
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