ostermeier H2ydrogen Solutions (OHS)

We currently offer electrolysis capacities from 2.4 kW to 100 kW. Our H2 battery for the use of hydrogen as seasonal storage is suitable for buildings with a PV generation capacity of approx. 20 kWp or more or for buildings with renewable energy systems that generate at least 1.6 times as much energy as they consume.

We currently offer our modular electrolysis system with an output of 1 kW to 100 kW.

With the innovative ECORE ONE product, we are expanding the H2 battery (see downloads) to include all the essential components that a building needs for a completely independent energy supply. The ECORE ONE is a product suitable for series production for the holistic and year-round energy supply of buildings with an area of 800 to 1,500 square meters and an installed PV output of between 50 and 200 kWp.

Thanks to perfectly coordinated hardware and intelligent software, the ECORE ONE ensures reliable 24/7 operation. Our smart energy management prioritizes the use of PV energy: As soon as PV energy is available, it is prioritized as follows: A) for direct consumption, B) for short-term storage in a battery, C) for conversion into heat and storage, and D) for storage in the form of hydrogen for the winter. The ECORE ONE thus combines the 3 storage technologies day-night electricity storage, heat storage with heat pump and summer-winter seasonal storage with hydrogen.

By focusing on selected target groups, the ECORE ONE is a standard product that can be manufactured cost-effectively in a production hall and installed plug-and-play at the customer's premises in a short time - the complete energy supply for a building in one box, without taking up space in the building. And the award-winning design makes outdoor installation an attractive option. The ECORE ONE is energy independence at its best. From late fall 2024, you will have the exclusive opportunity to experience the ECORE ONE live at the Buchheim Museum and get to know the future of sustainable energy supply.

The H2 battery is the long-term energy storage system (seasonal storage) that supplements the short-term energy storage systems of an electric battery and heat buffer storage system in a building to enable year-round energy independence around the clock. The H2 battery combines a photovoltaic system, an electric battery storage system and hydrogen technology to ensure this year-round, reliable and green energy supply.

An outstanding reference project for the H2 battery is the medium-sized company e.systeme21 in Ulm. As a model company, e.systeme21 is one of our first customers to have already set out to be energy self-sufficient all year round in 2023 with the help of an H2 battery. The family business is thus demonstrating how a commercial property can become completely climate-neutral. The H2 battery plays a central role in this, as it stores surplus solar energy in the form of hydrogen in summer, which is converted back into electricity and heat in winter, thus closing the "winter gap". e.systeme21 thus proves that a sustainable and decentralized energy supply already works in practice today.

Our project map continues to grow.