Cologne-based air-conditioning company Schwank has put into operation a hydrogen-capable dark radiator unit series called geniumSchwank.
According to the company, this is the first 100% hydrogen-powered dark radiator.
According to Schwank, the customer, e.systeme21 GmbH from Ulm, operates the system with 100% green hydrogen from its own power-to-gas production. In this context, the dark radiator is a component of a CO2-free and self-sufficient energy concept of e.systeme21 GmbH.
The entire energy demand of the commercial enterprise is covered by self-generated green electricity. The company's own photovoltaic system generates the energy required for this and stores it in lithium-ion batteries for short-term needs, and as hydrogen for long-term, seasonal needs.
Hydrogen from surplus PV electricity
The hydrogen is largely produced from the surplus electricity from the photovoltaic system in summer using an electrolysis system (power-to-gas) and stored in tanks.
The CO2-free and climate-neutral operation created in this way stands as a showcase and pilot project for the Ulm-Donautal business location. It is supported by the hydrogen initiatives H2-Süd e.V. and HyFIVE e.V. as well as the THU Technical University Ulm and the Center for Solar Energy and Hydrogen Research ZSW.