HEIWIT sodium ion battery: features, models and applications

The HEIWIT sodium-ion battery is designed for the’stationary accumulation in combination with photovoltaic and domestic systems. On this page you will find a clear overview of the features, what the system includes and how to choose the most suitable configuration.

If you want to understand the technology in a general way first, you can start here:

Sodium ion batteries: a complete guide

What it is used for (in practice)

• Increasing self-consumption of energy produced by photovoltaics
• Reducing withdrawal from the grid
• Managing peak demand

What the system includes

• Battery modules with variable capacity
• Integrated BMS (management and protection)
• Wiring and connections for safe installation
• Complete technical documentation

Key features

• Chemistry: Sodium-ion
• Nominal module capacity: variable value depending on the chosen configuration
• Usable energy: depends on conditions of use
• Charging/discharging power: integration inverter function
• Operating temperature range: designed for stationary use

How to choose the right capacity

In order to size the storage correctly, it matters above all how much energy you use during the periods when the photovoltaic does not produce (evenings/night) and how much excess energy you have during the day.

• High evening consumption → more kWh of battery
• Large PV system → more energy available to be stored
• Maximum self-consumption target → more generous accumulation

Inverter compatibility

Inverter compatibility is crucial for optimal performance and proper power and protection management. Learn more:

Discover compatible inverters and ideal configurations

Installation on existing system (retrofit)

Storage can often be integrated on already installed systems, but it depends on the configuration (inverter, single/three-phase and grid connection requirements). To understand which solution is most suitable

Retrofit on existing photovoltaic systems: a practical guide

Request a customised proposal

Indicate us:

• photovoltaic power (kWp)
• single-phase or three-phase
• annual consumption (kWh)
• inverter model (if available)

? Contact us now: we will get back to you with a concrete solution tailored to your system.