About SodiumStorage.ch

What we offer

A matched system: the HEIWIT-NA-48V210Ah sodium-ion battery (10 kWh, 48 V, up to 3 modules in parallel), the VIRGO (single-phase) and LYBRA (three-phase) hybrid inverters, backup panels and accessories. From early 2027 the HEIWIT-NA-48V170Ah battery with 7.78 kWh and NFPP cells will be added.

We check every order, confirm availability and delivery date with a pro-forma invoice and deliver by freight carrier throughout Switzerland. Installation is done by your electrician.

The manufacturer: Heiwit

Heiwit S.p.A. in Varese (Italy) develops storage systems with sodium-ion cells and hybrid inverters and sells them through installers in Italy and Europe. Technical data, datasheets, manuals and certificates on our product pages come from Heiwit.

We are an independent importer: Heiwit is not a party to the sale. We forward warranty claims to the manufacturer and coordinate repair or replacement.

Why sodium-ion

Sodium is abundant, the cells contain no lithium or cobalt and keep working in the cold. We publish the data with their test conditions and also say where the technology has limits: it is somewhat heavier per kWh than LFP, and safety always depends on the whole system. More in the comparison Sodium or lithium.

Languages and contact

The website is available in German, French, Italian and English. You can reach us via the contact form and on WhatsApp; an AI assistant answers first questions and passes requests on to our team.