Hydrogen Power Plant for Domestic Use

Industry News – June 14, 2021

Many people dream of supplying their own energy completely carbon-neutrally. Founded in 2014, Berlin’s HPS Home Power Solution GmbH makes this dream a reality with its picea home storage system. Its principle is simple: Solar power is generated by a rooftop photovoltaic installation and can either be used directly, stored in batteries, or converted via electrolysis and stored as hydrogen.

The system comprises a battery (25 kWh) as a short-term storage device and alkaline electrolysis (with an efficiency rating of 70–80 percent) for seasonal chemical energy storage (1500 kWh) in the form of green hydrogen. A PEM fuel cell (with an electrical efficiency rating of 45 to 55 percent) is used to generate power from this hydrogen for the household and operation of a heat pump. By integrating the waste heat from the fuel cell into the heat cycle, the total utilization rate for the electrical energy from the PV system remains at 90 percent over the whole year.

The full system also includes a solar inverter for direct connection to a PV installation, an intelligent energy management system and ventilation equipment with a built-in heat exchanger for controlled ventilation of living spaces. Mass production of the hydrogen electricity storage system began at the start of this year.

The picea home storage system has been nominated for The smarter E AWARD 2021. The winners of The smarter E AWARD will be crowned on a virtual stage as part of The smarter E Industry Days being held between July 21 and 23, 2021. The AWARD ceremony will begin on July 21 at 3:00pm

Further information about all nominated projects and products can be found here .

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Industry Voices
Hans Korteweg, Geschäftsführer bei COGEN Europe

Cogeneration is evolving into the backbone of a decentralized, integrated energy system where energy will be generated and consumed at a local or distributed level. We support EM-Power Europe as a partner because all stakeholders of a decentralized energy system come together here.

Industry Voices
Jochen Schwill, CEO Next Kraftwerke

"Our virtual power plant connects solar and wind farms, electricity storage systems, Power-to-X installations and more. This allows us to help balance out fluctuations in energy supply and demand. With its focus on smart renewable energy, EM-Power is the perfect platform for us to showcase what we have to offer.”

Industry Voices
Frauke Thies, Executive Director, smartEn (Smart Energy Europe)

"Prosumers are playing an increasingly important role in the energy transition. By generating, consuming or storing electricity in a self-distributed manner, they ensure a balance between the supply and demand of renewable energies in a smart grid. At EM-Power Europe, the topic will get the attention it deserves."

Industry Voices
Robert Busch, Managing Director Bundesverband Neue Energiewirtschaft

"To drive forward the energy transition, electricity, heat and transport sectors must be coupled. This is the only way to efficiently integrate renewables into the energy system via load shifting, storage and power-to-X technologies. EM-Power Europe will show how sector coupling can be implemented in neighborhoods."

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