Off-grid charging stations with fuel cells and hydrogen for temporarily installed charging stations for battery-powered vehicles
As the proportion of hydrogen in the energy grid will increase in the future, we are developing energy supply units that utilise hydrogen and provide it in other forms of energy. We primarily provide electrical energy, but also heat and cooling. These units are used on the road wherever there are no charging stations, e.g. at events outside cities.
The charging trailer shown in the illustration is a mobile charging station for three battery-powered electric vehicles or several hundred bicycles. The second illustration shows the charging station during the European disaster control exercise Magnitude in October 2024 in Mannheim harbour, where it supplied emergency vehicles of the rescue services with electricity. In the existing expansion stage, 6.2 kg of hydrogen - in two 700 bar tanks - can be used to provide 120 kWh of electrical energy via a fuel cell with 15 kW output. The charging trailer is refuelled at public hydrogen filling stations or company-internal filling stations).
Systems with an output of 150-200 kW and a hydrogen storage unit with a capacity of 40-80 kg or an external hydrogen supply are being targeted for stand-alone operation during events or power failures.