The battery is only half of the system: the other half is the’inverter. Good compatibility between battery and inverter is essential to achieve proper charge/discharge management, protection, performance and reliability over time.

If you want a general overview of the technology first, you can find the complete guide here:

Sodium ion batteries: what they are, advantages and comparison with lithium

Because compatibility really matters

• Power ManagementThe inverter decides how much power to request from the battery at any given time.
• Protectionsvoltage/current and temperature management limits must be observed.
• Communicationcorrect protocols allow accurate reading of SoC and security states.
• ReliabilityIncorrect compatibility can cause abnormal behaviour and battery stress.

What information is needed to verify compatibility

For a quick check you need this data:

• Single-phase or three-phase
• Inverter power (kW)
• Plant diagram (grid-tie, hybrid, backup, etc.).
• Battery voltage range and supported communication parameters
• Current limits and charge/discharge power

Typical configurations

1) New plant with hybrid inverter

It is the most straightforward solution: hybrid inverter + battery designed to work together. It allows optimal management and simpler configuration.

2) Existing system (retrofit)

In retrofitting, it is often considered whether:

• keep the existing inverter and add a dedicated system (if compatible), or
• adopt a compatible inverter for the best integration and complete management.

To find out which way is best in your case, read the practical guide:

Retrofit on an existing system: when it pays to kit and when to replace the inverter

Quick checklist before installation

• Single-phase/three-phase verification and available meter power
• Check that the battery parameters required by the inverter are consistent
• Set charge/discharge limits correctly
• Confirm that the BMS communicates correctly (SoC and states)
• Tests behaviour under real conditions (domestic loads and peaks)

Frequently asked questions

Can I use any inverter?

Not always. Compatibility depends on technical specifications and communication. In many cases it is possible, but must be verified to avoid abnormal behaviour and system stress.

What is the difference between single-phase and three-phase?

Load and power management changes. In three-phase, it is important to design the configuration correctly in order to achieve stable and consistent operation.

We help you choose the right configuration

For a quick response, send us:

• PV power (kWp)
• single-phase/three-phase
• inverter power (kW) and model (if available)
• indicative annual consumption (kWh)

? Contact us now: we will get back to you with a clear, ready-to-install configuration.

Useful links:

• HEIWIT sodium-ion battery: features and models
• Technical insight: sodium-ion chemistry and the role of BMS