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Hormanns solar home

The management team of Hörmann Solartechnik, a solar installation firm based in Zusmarshausen (Germany), also uses 100% solar energy for its personal use. The Hörmann family has just fulfilled its dream of building its own energy self-sufficient home using only solar power, powered by Q CELLS

The solar system has an output of 20 kWp and was installed on the roof of the Hörmann’s newly built house in Zusmarshausen, Bavaria. The PV array has an annual output of approximately 20,000 kWh and delivers sustainable contribution toward ensuring that the Hörmann family lives off energy that is 100% self-sufficient. The system combination of solar system, battery storage, electrolyser and fuel cell in the Hörmann family's house ensures CO2-free energy supply by converting and storing the solar electricity generated during the day into hydrogen, using the "Power-to-Gas" principle. At night and in winter, the hydrogen is converted back into household electricity. Together with the battery storage system, it not only ensures power supply for the house, but can also meet the home’s heating requirements, and charge the family's electric car. With such a system, the only source of power required to deliver electricity, mobility and warmth all-year round is the sun.

This passive house impressively demonstrates how a CO2-free energy, fully independent of the grid or additional external sources of power, is already possible. It is for this reason that this project received the Federal Prize for Outstanding Innovative Achievements by the Federal Ministry of Economics and Technology.

Solar power is becoming the world's most cost-effective form of energy generation

The "Power-to-Gas" principle, which converts solar electricity into hydrogen, is rapidly becoming another attractive method of storing solar energy economically and complements more typical battery storage technology. This trend has been forecast to expand, according to a recent study by the Finnish Lappeenranta University of Technology (LUT), which also concludes that solar energy could account for 69% of the world’s global electricity supply by 2050.

This model scenario is made possible by the rapidly declining electricity production costs of solar power, which already make solar energy the cheapest form of energy generation in many regions of the world. 

"We are a specialist company for solar systems. Our energy self-sufficient house has always been a great vision and incentive for us," enthuses Rita Hörmann, Managing Director of Hörmann Solartechnik. "As experts, we could simply plan and commission the system ourselves. We wanted to do everything right from the start and make ourselves not just a little bit, but completely independent of the big power suppliers. That's why we opted for a combination of solar system, battery storage and fuel cell. Thus, our house is 100% energy self-sufficient and does not need even an external power connection.” 

Labels: Hormann,QCells,solar,battery backup,energy storage,hydrogen,fuel cells,off-grid,sustainable,innovation

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