FREQCON GMBH

Their core work

Freqcon GmbH is a German power electronics specialist focused on grid-connected energy storage systems and frequency conversion technology. Their work centers on designing and integrating hybrid energy storage solutions — combining technologies such as flywheels, batteries, vanadium redox flow batteries, and supercapacitors — for grid stabilization applications. In EU research projects they contribute advanced power conversion hardware and control algorithms that manage the dynamic interplay between different storage technologies. Their practical, industrial orientation (SME, Innovation Action participation) suggests they build real hardware components, not just research prototypes.

What they specialise in

How they've shifted over time

In their first H2020 project (2017–2020), Freqcon worked on flywheel/battery hybrid systems specifically for dynamic grid stabilization — a fast-response, mechanical-electrical approach. Their second project (2020–2024) shifted toward electrochemical long-duration storage, pairing vanadium redox flow batteries with supercapacitors and introducing explicit software capabilities like dynamic simulations and advanced control algorithms. The trend is a deepening of the storage portfolio: from mechanical-battery hybrids toward flow battery-supercapacitor systems, with growing emphasis on intelligent management rather than just hardware.

Freqcon is moving up the value chain from pure power conversion hardware toward integrated hybrid storage systems with intelligent control software, making them an increasingly capable end-to-end partner for grid-scale storage projects.

How they like to work

Freqcon participates exclusively as a consortium partner — they have never led an H2020 project — suggesting they prefer contributing defined technical components rather than managing multi-partner coordination. With 13 unique partners across 9 countries in just 2 projects, their consortia are mid-sized and internationally diverse. This profile fits a technology SME that brings specialized hardware or know-how as a work-package contributor, likely valued for industrial implementation rather than research leadership.

Freqcon has built a network of 13 partners across 9 countries from only 2 projects, indicating broad European reach for a small company. Their collaboration geography spans at least central and northern Europe, consistent with energy storage markets in Germany, Scandinavia, and the UK.

What sets them apart

Freqcon sits at an uncommon intersection: a small industrial company that can contribute both physical power conversion hardware and control software for hybrid storage systems. Most SMEs in this space specialize in one storage technology; Freqcon's track record spans flywheels, lithium batteries, vanadium redox flow batteries, and supercapacitors across two projects. For a consortium needing a pragmatic industrial partner to build and validate storage integration — rather than a university doing simulations — Freqcon offers hands-on implementation credibility.

Highlights from their portfolio

• HyFlow
  The most technically ambitious of their projects, combining vanadium redox flow batteries with supercapacitors and advanced control algorithms — a rare multi-chemistry hybrid with direct commercial storage market relevance.
• AdD HyStor
  Their highest-funded project (EUR 349,738) and an Innovation Action, meaning results were targeted at near-market demonstration rather than basic research — unusual and valuable for an SME of this size.