The SOFAR PowerAll Smart energy storage kit, consisting of a Sofar ESI-10K-T1 three-phase hybrid inverter rated at 10 kW and four high-voltage BTS 5K Smart battery modules with a total capacity of 20.48 kWh, is a complete solution for residential photovoltaic systems. The system efficiently stores surplus energy generated by the PV installation and makes it available during peak demand hours, increasing self-consumption and reducing the amount of energy drawn from the grid.

Together with the BTS 5K Smart modules, the ESI T1 series inverter forms the integrated PowerAll system, offering efficiency of up to 98.2%, 3 independent MPPT trackers, on-grid and off-grid operation and switchover to critical loads in less than 10 ms. The LiFePO₄ BTS 5K Smart modules provide a total of 20.48 kWh of capacity (19 kWh usable) and feature integrated heating that supports battery operation at low temperatures. The storage can later be expanded to 6 modules per inverter. Together they form a modern system that increases energy independence and the security of your home's power supply.

The SOFAR PowerAll Smart 10 kW + 20 kWh kit includes:

• Sofar ESI-10K-T1 10 kW PowerAll hybrid inverter
• 4 × Sofar BTS 5K Smart 5 kWh battery module
• Sofar BTS 5K Extension base

What are the benefits of this energy storage system?

• Complete kit: 10 kW hybrid inverter and 20.48 kWh energy storage, including a base for the second module stack.
• Three-phase Sofar inverter with three independent MPPT trackers rated up to 20 A.
• High-voltage LiFePO₄ battery modules with 93% depth of discharge.
• Integrated heating of the BTS 5K Smart modules – suitable for unheated rooms.
• Modular design – expandable to 6 modules per inverter and up to 6 connected PowerAll systems.
• Switchover to critical loads in less than 10 ms.
• On-grid and off-grid operation.
• SOFAR AI-EMS smart energy management (incl. dynamic prices, peak shaving, charging schedules).
• Increased self-consumption of energy from the photovoltaic system.
• More energy available in the evening, at night and during power outages.

Who is this kit for?

• single-family homes with a three-phase photovoltaic system,
• users who want to increase self-consumption and energy independence,
• those planning to expand their energy storage step by step in the future,
• those who need an energy reserve for backup power.