HPS develops and produces integrated systems for storing and using solar energy for detached and semi-detached houses. HPS stands for security, independence and sustainability in decentralized power supply. The first HPS system picea is energy storage, heating support and living space ventilation in one compact product. Based on its own high-performance energy management, picea completely covers the electrical energy requirements of a single-family home. In addition, the resulting waste heat is made available to the house as heat, thus reducing heating costs. Compared to commercially available batteries, picea offers a hundred times more storage capacity with twice as much power. picea is energy-efficient and supplies energy at any time of the year. This makes picea the first real option for complete network independence. The energy produced by a photovoltaic system on sunny days can either be used immediately or it is converted into hydrogen and stored. This energy can then be called up again in winter when there is little sunshine. picea's fuel cell converts the energy stored in hydrogen back into electrical energy and heat when required. HPS is based in Berlin.