We develop a new, potentially revolutionnary technology of energy storage : very high density, low cost.

Type Startup or self-employed
Founder 2017
Company Size 5
Member Type
Founders Michael Irgang
Headquarters 2120 Luxembourg City, Luxembourg
Social network


Pure electrical energy storage in small bulbs under vacuum. The density may reach 1 kWh per cm3, or some 20 kWh per kg. The energy storage device (called "Vacuum Capacitor") is under development, as well as its charging system. But proof of concept has been done approx. 10 years ago.

Our company was created in 2017 to develop optimized Vacuum Capacitors, with more stable functioning and very high density.

Headquarters 2120 Luxembourg City, Luxembourg

SDG’s of application

The Sustainable Development Goals are a call to action to end poverty, protect the planet and ensure peace and prosperity everywhere.
Clean Water and
SDG 6 icon
Affordable and
Clean Energy
SDG 7 icon
Industry, Innovation
and Infrastructure
SDG 9 icon
SDG 11
Sustainable Cities
and Communities
SDG 11 icon
SDG 12
Responsible Consumption
and production
SDG 12 icon

Offers from FREEL TECH

Other products

FREEL TECH developed a new, unique and high-performance technology, for a pure electrical energy storage. We manage to store electron clusters in small bulbs under vacuum, with a very high specific density (could be 100 times more than Li-Ion, for instance 20 kWh per kg). The solution is low cost (well under 100 USD / kWh) and is not relying on any rare or costly resources. Unseen energy storage densities at reasonable cost, with much reduced environmenal impact, for a very large panel of potential applications. See our short video :

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Available inLuxembourg, Categories of applicationAffordable and clean energySector of applicationEnergy storage Status R&D