The Deye GB-S10K, S12K, S15K, and S20K-EU high-voltage, three-phase hybrid energy storage systems are designed for those who want to combine a high-performance solar panel system with battery storage. They are the ideal choice for larger single-family homes, heat pump heating, electric vehicle charging, or properties where a stable three-phase supply and high self-consumption are key considerations.
The system has a modular design: the hybrid inverter, the high-voltage battery control unit + baseunit, and the LiFePO₄ battery modulestogether form a unified, scalable energy storage solution.
High power for three-phase systems
The rated power range of 10–20 kW allows the system to safely serve both larger residential and smaller commercial loads. The three-phase design ensures stable operation while also supporting asymmetric loads, which is particularly important in modern, mixed consumer environments.
The system is suitable for on-grid, off-grid, or hybrid operation, ensuring power supply to critical loads even during power outages. Generator backup can also be integrated, further enhancing operational reliability.
Deye GB-L Pro Pack 4.1 HV LiFePO₄ Battery – Safety and Long Service Life
The Deye GB-L Pro Pack 4.1 HV is a high-voltage (HV) LiFePO₄ battery module specifically designed for hybrid energy storage systems. Lithium iron phosphate technology is one of the safest solutions for residential energy storage, while providing a long service life and stable performance in everyday use.
A key advantage is that it is compatible with Deye’s GB-S series three-phase hybrid inverters (GB-S10K / S12K / S15K / S20K-EU) in terms of system logic, meaning this HV battery module is the ideal pairing for GB-S solutions. Thus, the storage system and the inverter work together as a unified, manufacturer-integrated system, which means simpler design, faster implementation, and more predictable operation.
Thanks to its modular design, the system can be easily adapted to the specific project: storage capacity can be expanded step by step by connecting multiple battery modules in series. The advantage of the high-voltage platform is that it supports efficient operation, reduces current load, and contributes to the optimized operation of the entire system.
Outstanding efficiency and modern solar panel compatibility
Deye GB-S inverters operate with high efficiency and a wide MPPT range, making them well-suited for solar systems with varying orientations and power outputs. The 1000 V DC side and significant over-panel capacity are particularly advantageous for larger roof areas.
The system supports modern energy management solutions, optimizes self-consumption, and helps reduce the amount of energy drawn from the grid. This is particularly important in the face of rising electricity prices or in a net metering environment.
Weather-resistant design and reliable operation
IP65-rated components enable safe indoor or properly protected outdoor installation. The system features intelligent thermal management and can operate across a wide operating temperature range, ensuring stable performance even under Hungarian climatic conditions.
Built-in protection features—including overvoltage, overcurrent, short-circuit, and insulation protection—contribute to long-term, safe operation.
Who is the Deye GB-S10/12/15/20K-EU system recommended for?
This three-phase hybrid energy storage system is the ideal choice for:
larger single-family homes
heat pump or electric heating
systems combined with electric vehicle charging
properties with high annual energy consumption
projects where future expandability is important
The modular design allows the system to grow along with energy needs.
The Deye GB-S10K / S12K / S15K / S20K-EU is a robust, high-performance energy storage platform designed to meet the needs of three-phase residential and small commercial systems. The high-voltage design, LiFePO₄ technology, and scalable capacity combine to offer a stable, long-term sustainable solution.
We recommend it to those who not only want a solar system but are striving for true energy independence—without compromise.
