Hydrogen & Oxygen Biotop Namibia

The aim of HygO is to develop a self-sufficient energy system in the form of a microgrid. With this, regenerative energy is to be stored with an electrolyser in the form of hydrogen in order to be able to convert it back into electricity in a fuel cell if required. In addition, the oxygen produced during electrolysis is used to treat wastewater or process water into drinking water.

Creating microgrids that are robust and effective and can be used flexibly for different application scenarios is a solution for the energy transition. Furthermore, the branding “Made in Germany”, which continues to be regarded worldwide as a seal of quality and innovation both for classic export goods of mechanical and plant engineering and increasingly for GreenTech products, is to be used to establish a Hydrogen & Oxygen Biotope for microgrids in Namibia. The innovative approach at Hygo is that the oxygen released during electrolysis, combined with other filter technologies, is used to treat drinking water from dirty-water. The addition of oxygen, the “waste product” of electrolysis, causes bacteria in dirty water to multiply in general. They thus become active and promote water treatment, e.g. by destroying carbon and other pollutant particles.


Project Duration:
01.01.2023 – 31.12.2026

Funding Code:

Constitutent / Funding Body:
Federal Ministry for Environment, Nature Conservation, Nuclear Safety and Consumer Protection

SDGs addressed:


  • Fraunhofer Institute for Machine Tools and Forming Technology IWU
  • Krenkel Abwassertechnik GmbH
  • Haver & Boecker OHG