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Freen-BSL-N low-voltage sodium-ion battery module featuring NFPP (Sodium Iron Phosphate-Pyrophosphate) chemistry for residential energy storage
| 21-10-2026
FREEN-BSL-N: Europe’s First No-Critical-...

The FREEN-BSL-N is a revolutionary sodium-ion battery for home energy storage, eliminating cobalt and nickel. It delivers 14,000+ cycles, -30°C operation, and unmatched safety for European households seeking reliable power. What Makes the FREEN-BSL-N Different? The FREEN-BSL-N represents a major technological leap as a true manufacturer Europe solution for residential power. Unlike traditional lithium-based systems, […]

sodium-ion battery in a home garage
| 09-09-2026
Sodium-Ion Batteries Explained: The Complete 2...

Sodium-ion batteries provide safer, longer-lasting home energy storage with -30°C to +60°C tolerance and 10,000+ cycles. This guide explains how the technology works and why it outperforms lithium-ion in 2026. What Are Sodium-Ion Batteries? Sodium-ion batteries operate on similar principles to lithium-ion technology but use abundant sodium ions as charge carriers instead of lithium. This […]

grid vs. off-grid freen wind turbine with sodium-Ion battery storage
Grid vs. Off-Grid Wind with Sodium-Ion Battery...

Grid-connected wind systems offer lower upfront costs and net metering benefits, while off-grid installations with sodium-ion battery storage provide complete energy independence but require 2-3x higher initial investment. The right choice depends on your location, grid availability, budget, and energy security priorities. This decision guide compares technical requirements, total costs, and long-term economics of both […]

News, Milestones & Announcements

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Estonian Chamber of Commerce and Industry on FREEN
Delegation of the Estonian Chamber of Commerce...

The Estonian Chamber of Commerce and Industry delegation visited the FREEN factory in Ida-Virumaa to explore innovative small wind energy solutions and discuss green technology development.

flag of Estonia wit solar panel
Security of Supply Grant – Unlock Funding with...

Reduce electricity bills with Freen's solar solutions in Estonia. Get expert help with solar panels, battery storage, and EU-funded grants like the Security of Supply Grant. Save up to 70% on energy costs—free consultation available!

Freen at Hannover Messe 2025
Freen OÜ Represents Estonia at Hannover Messe ...

Freen at Hannover Messe 2025: Freen OÜ showcases Estonian innovation in smart manufacturing, energy efficiency, and digital transformation.

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