PowerAll Sofar BTS 5 kWh ESI 4 kW 1F Energy Storage System

Energy storage system PowerAll Sofar ESI 4K-S1 with BTS E5-DS5 battery is a Plug & Play solution, meaning it can become part of any new installation. The system is easy to install and configure.

It is ideally suited for:

• Planning hybrid (on/off grid) installations.
• Demand for a ready-to-use energy storage system without the need for complicated configuration and installation.
• Locations with frequent interruptions in electricity supply – ensures continuous operation thanks to EPS function.
• Having electric or hybrid vehicles.
• Independence from energy suppliers – thanks to the zero-export energy function, there is no need to draw energy from the public grid or feed produced solar energy back into the grid.
• Limited installation space - the system takes up little space.

Benefits for the user:

SAVINGS AND ENERGY INDEPENDENCE
The Sofar energy storage system allows for maximum utilization of energy produced from PV installations and increases independence from energy supplied by the public grid. With BTS 5K series batteries, there is no need to export 100% of surplus energy to the grid. Registered temporary surpluses of produced energy are stored in batteries and used during periods of increased energy demand (e.g., at night, during cloud cover, or early in the morning).

CHARGE BATTERIES WHEN ELECTRICITY IS CHEAPEST
There is an option to specify any period within a week when the user can manage the charging of batteries to a specific level (e.g., every Saturday from 22:00 to 80%). The correct inverter operating mode must be set.

SAFETY
In case of primary power outage from the Public Grid, the Sofar system ensures power supply to appliances or operates in off-grid mode outside the power grid.

SCALABILITY
The Sofar energy storage system can be expanded with additional batteries - up to 6 BTS 5K battery modules in one system.

Device features in the kit*:

• Energy storage.
• Emergency Power Supply (EPS) - Island operation mode in case of voltage outage in the Power Grid. Switching time below < 15 ms.
• Zero export function to the public grid - Ability to store 100% of energy.
• Monitoring - Remote access to device operating parameters via mobile application.

Kit features:

• Power supply safety - Emergency Power Supply function.
• Work safety - Built-in BMS (Battery Management System) provides optimal operating conditions for battery cells, protecting them from overcharging, deep discharge, and overheating.
• Ease of installation - The kit includes easy-to-install components.
• Convenient modular battery installation - up to 6 battery modules in one kit.

Warranty:

The Sofar solution with BTS 5K battery comes with a 5-year warranty on the inverter and a 10-year warranty on the battery.

Kit composition: Energy storage Sofar BTS 5 kWh + ESI 4 kW, 1F**

• 1 x Sofar ESI 4K-S1 1F
• 1 x Battery Sofar BTS 5K

* The kit does not include photovoltaic modules.

** The kit includes standard cables connecting the battery to the inverter, but if the inverter is not installed directly on the battery, cables of appropriate length should be made (e.g., 6 mm solar cable) using the connectors included in the kit.

The maximum length of cables between the battery and the inverter is 10 m. The kit also does not include AC side protections. Protection should be selected individually.