Sodium batteries: why stratified oxides are changing domestic storage

by Technical Department Heiwit | Jan 28, 2026 | Sodium ion batteries

When “sodium” is not enough: chemistry makes all the differenceTwo storage systems can claim “sodium-ion battery” and yet behave in opposite ways in the home: one holds up well during heat pump peaks, the other collapses in power in the evenings...

Photovoltaic storage: why sodium batteries change the rules (and what the supply chain has to do with it)

by Technical Department Heiwit | Jan 23, 2026 | Sodium ion batteries

The choice you make in the cellar: it's not just a batteryWhen you install a photovoltaic storage system, the object that ends up in your garage or utility room looks like “just” a component of the system. In reality it is a decision that touches raw materials, chains of...

Heiwit starts project for new factory in Italy: up to 1 GWh per year of sodium ion batteries

by Technical Department Heiwit | Jan 22, 2026 | Sodium ion batteries, Press review

Industrial Production - Sodium-ion Batteries Heiwit starts the project for a new sodium-ion battery factory in Italy: up to 1 GWh capacity From 7 January, a strategic industrial project officially starts: a new sodium-ion battery factory in...

Why Heiwit sodium ion batteries only work best with our inverters

by Technical Department Heiwit | Jan 18, 2026 | Sodium ion batteries, Footer Guides

Why Heiwit sodium-ion batteries only work best with our inverters When it comes to residential storage, it is often taken for granted that “one battery is as good as another” and that it is enough to choose a “compatible” inverter to make everything work....

Sodium Ion Batteries: The New Frontier of Energy Storage

by Technical Department Heiwit | Jan 9, 2026 | Sodium ion batteries

The Sodium Ion Battery Revolution: An Opportunity to SeizeSodium ion batteries are emerging as an innovative solution in energy storage technology. Thanks to reduced costs and more readily available materials,...

HEIWIT battery-compatible inverters: how to choose the right configuration

by Technical Department Heiwit | Dec 19, 2025 | Sodium ion batteries, Guides, Footer Guides

The battery is only half of the system: the other half is the inverter. Good compatibility between battery and inverter is essential for proper charge/discharge management, protection, performance and reliability over time. If you want a general overview first...

HEIWIT sodium ion battery: features, models and applications

by Technical Department Heiwit | Dec 19, 2025 | Sodium ion batteries, Guides, Footer Guides

HEIWIT sodium-ion battery: features, models and applications The HEIWIT sodium-ion battery is designed for stationary storage in combination with photovoltaic and domestic systems. On this page you will find a clear overview of the...

How a sodium ion battery works: chemistry, cells and BMS (explained well)

by Technical Department Heiwit | Dec 19, 2025 | Sodium ion batteries, Guides, Footer Guides

How a sodium-ion battery works: chemistry, cells and BMS (explained well) In this in-depth guide we explain how a sodium-ion battery works from a technical point of view, but in clear language. If you are looking for a more introductory guide you can...

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

by Technical Department Heiwit | Dec 19, 2025 | Sodium ion batteries, Guides, Footer Guides

Sodium-ion batteries (also known as sodium-ion) are storage systems that use sodium as the main element to transport ions between anode and cathode during charging and discharging. In practice, they do the same “work” as a sodium-ion battery....

HEIWIT: CE-certified sodium-ion battery for Italy and Europe

by Technical Department Heiwit | Dec 15, 2025 | Sodium ion batteries

HEIWIT: CE-certified sodium ion battery for Italy and Europe When it comes to storage systems for photovoltaics, one of the most important questions is: is this battery really certified and installable in Italy? The answer, for the HEIWIT kit...

Heiwit battery in retrofit on existing photovoltaic systems: when the kit pays off and when to replace the inverter

by Technical Department Heiwit | Oct 25, 2025 | Insights, Sodium ion batteries, Guides, Footer Guides, Photovoltaic systems

Heiwit battery retrofit on existing photovoltaic systems: when it pays to kit and when to replace the inverter Integrating a Heiwit sodium ion battery into your existing photovoltaic system is possible and often cost-effective. There are two ways:...

Certified temperature range - Heiwit sodium ion batteries

by Technical Department Heiwit | Oct 22, 2025 | Insights, Sodium ion batteries

Certified temperature range of Heiwit batteries Heiwit sodium-ion batteries have been tested and certified by TÜV SÜD. Below are the main values for the operating temperature as given in the official Heiwit temperature document.

Heiwit wins Best Innovation Award at Solar Solutions Torino

by Technical Department Heiwit | Oct 2, 2025 | Sodium ion batteries, Press review

Heiwit wins the Best Innovation Award at Solar Solutions Torino 2 October 2025 - Heiwit S.p.A. Heiwit has received the Best Innovation Award at Solar Solutions Torino.An accolade that recognises our research and development work on sodium ion batteries,...

Heiwit invited by EU to contribute to the future of sodium batteries

by Technical Department Heiwit | Aug 8, 2025 | Insights, Sodium ion batteries

Sodium ion batteries are emerging as one of the most promising technologies in energy storage. Unlike traditional lithium batteries, they use abundant and readily available materials, reducing dependence on...

Heiwit achieves first certification of a grid-connected inverter for sodium-ion batteries: a breakthrough for energy storage

by Technical Department Heiwit | Aug 1, 2025 | Insights, Sodium ion batteries, Press review

In the global energy storage landscape, obtaining the first official certification of a grid-connected inverter combined with sodium-ion batteries marks a milestone. The achievement of the Heiwit team represents not only a breakthrough...

Aging Test: how we test the reliability of our 6kW inverters before delivery

by Technical Department Heiwit | Jul 29, 2025 | Insights, Sodium ion batteries

In the video below we show an important step in our production process: the aging test on the 6kW single-phase inverters, designed to work in conjunction with Heiwit 10kWh sodium-ion batteries. This is an essential test that...

Heiwit: sodium ion batteries set to revolutionise European storage

by Technical Department Heiwit | Jul 26, 2025 | Insights, Sodium ion batteries

Heiwit has reached a major strategic milestone in the development of sodium ion batteries, an innovative technology that is set to revolutionise the energy storage market. Currently, Heiwit has a potential annual production capacity of...

Sodium Ion Battery: Complete Technical Guide, Technology Comparison and Advantages of Heiwit's Layered Oxide Cells

by Technical Department Heiwit | Jul 13, 2025 | Sodium ion batteries

Introduction In recent years, the world of energy storage has seen the emergence of a technology destined to radically change the balance: the Sodium-Ion Battery (SIB). This technology, although known for decades to...

New Heiwit sodium-ion battery stars at Galatina Fair

by Technical Department Heiwit | Jul 3, 2025 | Sodium ion batteries

From 27 to 30 June, we enthusiastically participated in the Galatina trade fair, thanks to the collaboration with Energy Building Project, our premium installer, which presented a preview of the new Heiwit sodium ion battery. An all-Italian energy...

Heiwit installs the first sodium ion battery in Italy (and Europe)

by Technical Department Heiwit | Jun 18, 2025 | Sodium ion batteries

In the world of renewable energy, there are moments that mark a before and an after. The installation of the first 10 kWh sodium ion battery in Italy and Europe is one of them. It is not only a milestone for Heiwit, but a strong signal of change for...