Simple integration with Nilar

If you are looking for an alternative to lead and lithium batteries that promises safe and powerful performance, without being detrimental to the environment, the Nilar Energy Compact (EC) series is the ideal product.

Batteries for all applications

We realize that applications can be different and therefore offer a versatile battery. The modularity of the Nilar EC Series allows configurations of voltages from 96 to 600 V, giving you the solution that your customer needs without compromise.

Easy communication and control

The Nilar energy storage solutions support several communication interfaces together with an advanced software that monitors the batteries down to every module. The energy storage system can be configured to perform several different tasks, giving you the best solution for your needs.

Modular energy storage solutions

Nilar offers a multitude of solutions to fit many applications and locations. An energy storage system ready to be connected to the grid requires several components that handle monitoring, control and conversion. The Nilar EC Cabinet or Rack contains our Battery Management System (BMS) and our EC Battery Packs with a built-in Integrated Monitoring Unit (IMU). In addition, a Power Conversion System (PCS) is required in order to convert the battery current from DC to AC. This will then connect the Cabinet or Rack to the electrical grid. lastly, an Energy Management System (EMS) that can control and coordinate several energy systemsmay be of use in select applications.

Nilar BMS

The Nilar Battery Management System (BMS) protects and controls the batteries to ensure safe operation and maintain a long service life. The core of our BMS is the software that uses complex algorithms to process data collected by the IMU of each battery pack. Furthermore, the BMS contains electrical components such as circuit breakers, fuses, current sensors, insulation monitoring and contactors that all work towards making the energy storage safe and reliable. In order to supply the BMS with power independent from the batteries themselves, the BMS requires a 230 V AC power supply. The Nilar BMS also supports a master-slave configuration that allows for easy scalability of your energy storage system.

Packs & IMU

The Nilar EC Battery Pack comes in voltages of 96, 108, 120 and 144 V. These can be connected in series to achieve system voltages of up to 600 V. Several packs in series are called a string. All Nilar EC Battery Packs are equipped with an Integrated Monitoring Unit (IMU) that monitors the voltages of all modules in the pack, together with the temperature and pressure of each pack. The IMU is supplied with 24 V DC power via the BMS. The packs are cooled with fans installed in the back of the rack or cabinet.

Power Conversion System

The Power Conversion System (PCS) converts the DC power of the batteries to the desired voltage and frequency of the surrounding energy system or electrical grid. The PCS is the primary controller of when the battery is charged or discharged, as it controls the current flows in and out of the energy storage.


The standard communication interfaces supported by the BMS are Modbus TCP/IP and Modbus RTU. In custom integrations, communication via CANopen is also available.

Energy Management System

An Energy Management System (EMS) is a higher level system that monitors, controls and optimizes the performance of the energy system. The EMS communicates with the BMS and the PCS and can command these systems to charge or discharge the batteries using different signals. The signal descriptions can be found in the Nilar Function Description, which is provided upon request.

System configurations

The Nilar EC Cabinets & Racks can be connected to the electrical grid using a Flexible or Dynamic configuration. The type of configuration is decided by which component controls the operation of the energy storage. The operation can either be controlled by the BMS, by an external EMS or by an external EMS through the BMS. An AC/DC PCS, often called an ‘inverter’, is required to connect the energy storage to the grid. We can assist you upon request to find the correct inverter to match your energy storage system. This inverter can then be controlled by the Nilar BMS or by an external EMS.

Flexible solution

Our flexible solution sports an open integration where the customer has control over the EMS. The EMS then communicates with the inverter and BMS.


System drawing of the flexible solution.

Dynamic solution

The dynamic solution has a BMS-controlled inverter. The customer EMS then communicates with the BMS which relays the commands to the inverter.

System drawing of the dynamic solution.


More information

If you wish to read more about our battery packs and energy storage solutions, download the Nilar EC Product catalogue.

Nilar EC Product cataloguePDF

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If you have an application and would like to discuss why Nilar EC is the right energy storage for your needs, our engineers will be happy to talk to you.

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