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Sodium batteries: why stratified oxides are changing domestic storage

Sodium batteries: why stratified oxides are changing domestic storage

by master_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...
Why does the charge percentage (SoC) sometimes “jump”? A simple (but technical) guide to understand it

Why does the charge percentage (SoC) sometimes “jump”? A simple (but technical) guide to understand it

by master_heiwit | Jan 28, 2026 | Guides, Footer Guides

Why does the percentage of charge (SoC) sometimes “jump”? (It also happens to lithium, especially LFP) If you have a domestic battery connected to photovoltaics, you may see behaviour that is surprising: the percentage of charge (SoC, State of Charge) does not go up or...
Photovoltaic storage: why sodium batteries change the rules (and what the supply chain has to do with it)

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

by master_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

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

by master_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

Why Heiwit sodium ion batteries only work best with our inverters

by master_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....
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*All forecast calculations on this site are made using these parameters unless otherwise indicated:
HEIWIT commission on installation cost: 20 %, HEIWIT commission on income: 20 %, CO2 saved per kWh: 0.48 kg, rent per kWp: 15 €, inflation on rent or lease cost: 2 %, insurance cost per kWp: 10 €, kWp installable on m2 per photovoltaic: 7 kWp, kWh value transferred to grid: 008 €, inflation on kWh value transferred to grid: 2%, fixed markup on kWh transferred for self-consumption: 0.06 €, annual photovoltaic production loss: 0.5 %, photovoltaic system cost per kWp: 850 €, production data taken from PVGIS europe.eu Cremona location Slope 35° Azimuth 0° PVGIS-SARAH2 database.

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