• Largest multi-picea system with up to 13,500 kilowatt hours of electricity storage.
• Storage system supplies 2,800 square metres of property with solar power from its own roof all year round.
• multi-picea use case opens up further market segments.

HPS Home Power Solutions AG (HPS), provider of the world’s first green hydrogen-based year-round electricity storage system for buildings, celebrates the next milestone: Germany’s largest multi-picea project was officially inaugurated on 29 October 2022 in Bad Kissingen, Bavaria. Nine cascaded picea systems supply a building with a total of 2,800 square metres and six residential units with solar power from its own roof all year-round. A 180 kilowatt peak photovoltaic system generates the solar power. 

"With multi-picea, i.e. cascaded picea systems, we now also supply larger building units with solar power all year round. We are further expanding our product range with our multi-picea solution. After an initial commercial application, the first building with several residential units is now following. For larger building complexes, multi-picea is the ideal solution, for the greatest possible independent and CO₂-free energy supply," says Zeyad Abul-Ella, founder and CEO of HPS.

Thanks to hydrogen, the storage capacity of picea is many times higher than that of conventional batteries. For even higher storage capacities in large properties, a large number of picea systems can be connected together thanks to the "Forester" product extension. The HPS solution for medium-sized companies and buildings is dimensionable. For example, multi-picea in Bad Kissingen can store 13,500 kilowatt hours of electrical energy in 45 hydrogen bundles and thus supply the building with self-produced and CO₂-free solar power all year round.

The multi-picea system uses the process heat generated and makes it available to the building. In addition to a high level of supply security, this results in an overall utilisation rate of up to 90 percent. In addition, multi-picea supplies the building’s five heat pumps with solar power from its own roof in summer and winter. 

multi-picea is already being used successfully in Meckenheim in North Rhine-Westphalia. A sanitary and heating company is supplied with five picea systems.

About picea:

picea is the world’s first commercially available hydrogen-based electricity storage system for buildings. The surplus energy generated by the photovoltaic system on sunny days is stored as green hydrogen and used in the dark season to supply electricity and heat. picea enables a CO2-free full supply of energy all year-round and reduces heating costs. Per year, a picea system avoids about three tons of CO2 emissions and this is equivalent to the amount that 130 spruce trees capture annually. picea has received several prestigious awards, most recently the Handelsblatt Energy Award, the smarter E Award and the Berlin-Brandenburg Innovation Award.