In South Africa's capital, Cape Town, and near the Namibian port city of Walvis Bay, so-called microgrids will contribute to a sustainable and emission-free power supply. These systems combine electrolyzers for green H₂ production with fuel cells for its reconversion to electricity: the microgrids store electricity generated from solar and wind power as H₂ and convert it back to electricity when needed. In Walvis Bay, a local school will use the oxygen produced during electrolysis to treat wastewater for irrigation purposes in its cultivation areas.

The HyTrA project will ensure a stable power supply for Alu-Cab, a manufacturer of aluminum vehicle bodies for off-road applications, in Cape Town. The company has photovoltaic systems and will utilize the excess energy to produce and store H₂ locally. This H₂ will be used for reconversion to electricity whenever no electricity is available from the grid. The lightest and most abundant chemical element, H₂, fully exploits its advantages as an energy storage medium here. Renewable electricity will be available precisely when needed, thanks to intermediate storage. Additionally, HyTrA will serve as a showcase for new business models and will be available for training and educational purposes.

The inauguration ceremony for HyTra took place on July 13, 2023, in Cape Town. The project team, consisting of Fraunhofer IWU, Texulting GmbH, Alu-Cab, Stellenbosch University, and Umstro GmbH, produced the first H₂ on African soil.

Subsequently, they reconverted the H₂ into electricity for a specific industrial application at Alu-Cab. Among the over 40 guests were the sponsors, NOW GmbH (Federal Organization for H₂ and Fuel Cell Technology, Germany) and Z.U.G. (Promoting society of the German Federal Ministry for the Environment); the Federal Ministry for the Environment, Nature Conservation, and Nuclear Safety was represented by a video message from the Head of Unit Sustainable Financial Policy, Environment and Foreign Trade Promotion.

HyTra is a corner stone for building bridges between Africa and Europe via H₂. Unlike megawatt and gigawatt projects of big investors, this project is designed for H₂ utilization in Africa, aiming to foster local acceptance and enable value creation through this innovative technology.

Both sides will benefit from this approach of a partnership on equal terms in the long run. Initially, systems and know-how come from Germany, but local partners will become increasingly involved. Industry, academia, and society will have numerous opportunities to utilize this microgrid to derive future utilization or action possibilities.

In particular, the participating medium-sized companies and scientific partners can gather valuable experiences and usage data for further development through the practical application of the system. It also provides a basis for the application-oriented training of urgently needed skilled workers. Appropriate scaling on both sides can turn H₂ into an export commodity for Africa while substantially supporting Germany's energy transition. The project participants hope to contribute to equal economic relations and emphasize the great potential for increased collaboration between German and African companies.

HyTra is the first H₂ pilot project from the Export Initiative of the German Federal Ministry for the Environment, Nature Conservation, and Nuclear Safety (BMUV). The H₂-based microgrid is the first of its kind in southern Africa to be used for a specific industrial application. Dr. Ulrike Beyer from Fraunhofer IWU said, "We would like to express our gratitude to all project participants who have passionately made the start of this important project possible, especially Ms. Nilgün Parker from the BMUV."

HygO: Power supply and water treatment for Namibia. HygO, another promising H₂ project, is ready for launch. In addition to the functionalities of the HyTrA system, HygO will also utilize the oxygen generated during electrolysis. The plan is to use it for wastewater treatment.

Starting from the end of 2023, HygO's first place of operation will be at the Namibia University of Science and Technology (NUST). The final deployment will begin in mid-2024 in a remote area in the Erongo District. HygO will generate electricity and treat water there. Discussions in this sense with the governor of the region have just begun. According to the current plan, a school in Nanibeheb will receive this further-developed microgrid. About 300 students would benefit from reliable electricity during their classes, and the school garden could be irrigated with rainwater of suitable quality as needed. The NUST will provide scientific support for the project.