From solar power to e-mobility: sector coupling using the example of Hubland

The Hubland project in Würzburg will soon be completed and combines sustainable living with modern technologies. With energy-efficient homes, renewable energy and smart solutions, it offers an environmentally friendly and cost-saving future.

Our new sustainable residential project in Würzburg is nearing completion. With 21 energy-efficient homes built to the KfW40 standard, we offer residents not only state-of-the-art living comfort, but also a well thought-out energy concept. Each home is equipped with a smart home system that optimizes energy consumption and makes everyday life easier. The tenant electricity systems only supply green electricity, which is generated directly on site by our partner's photovoltaic systems and provides residents with sustainable energy. This structure ensures that the electricity price is at least 10 percent below the market price of the local supplier.

Features of the project:

  • Tenant electricity system: All buildings are supplied with green electricity generated by the installed PV systems.
  • Charging infrastructure: Each building is equipped with up to two charging points to promote sustainable e-mobility. Eleven charging points have already been installed in the current construction phase, and future extensions will enable dynamic load management.
  • Smart home equipment: All residential units have an innovative smart home system that includes functions such as shutter control, floor thermostats and control of the charging infrastructure. Residents can operate all controls conveniently via an app.
  • Sector coupling and load management: The energy supply is regulated by intelligent load management systems that optimize electricity consumption and enable the shared use of the electricity generated for charging stations.
  • QMG certification: The project is officially certified according to QMG standards and therefore meets the highest quality requirements.

Summary and planning 

After a two-year planning phase, the Hubland project is nearing completion. This project is not only state of the art, but also a step towards a more sustainable and independent energy supply.

In the Hubland project, ROCKETHOME's home energy and smart home technology has been integrated in such a way that it makes residents' everyday lives easier, more efficient and more sustainable. Through an innovative combination of intelligent control and seamless connectivity, residents can conveniently control all the important functions of their home via app. Here are the core features of the equipment:

  • Intelligent thermostats and room climate control: With the floor thermostats, the temperature in each room can be regulated individually via the app. 
  • Charging infrastructure and e-mobility: The installed wallboxes can be managed via our app so that charging times can be planned flexibly. 
  • Smart sensors and automation: The system is equipped with various sensors that increase safety and convenience. 
  • User-friendly app: All smart home functions can be controlled via the app - from temperature control and monitoring energy consumption to managing the charging infrastructure. 

Thanks to this extensive smart home equipment, Rockethome in the Hubland project not only offers residents a high level of comfort, but also the opportunity to actively control their energy consumption and thus live more sustainably. The combination of modern technology and user-friendly operation makes the Hubland project a showcase example of networked, resource-saving living.

Hint box

Everything at a glance: Made possible by Rockethome: 20 townhouses with tenant electricity system (green electricity) on 160 square meters, 21 charging stations, smart home equipment.

‍Sector couplingand decarbonization in ROCKETHOME's Hubland project

An outstanding feature of the Hubland project is the sector coupling, which not only enables a particularly efficient and sustainable use of energy, but also actively contributes to the decarbonization of the residential quarter. By combining the various energy sectors (electricity, heating and mobility), resources can be used optimally throughout the residential environment and CO₂ emissions can be reduced. ROCKETHOME relies on intelligent networking that synchronizes and optimizes energy consumption in the individual areas of the household and thus drives decarbonization.

How does sector coupling work at Hubland?

  • Generation and use of electricity: Photovoltaic systems on the roofs generate green electricity, which is used both for household needs and for the electric car charging infrastructure. Surplus electricity can be used collectively, which lowers energy costs and reduces the carbon footprint.
  • E-mobility and charging infrastructure: the charging points for electric vehicles draw their electricity from the photovoltaic system. Residents can use the smart home app to control the charging processes and make optimum use of the self-generated electricity.
  • Optimized load management: An intelligent system monitors the energy flow and uses the capacities of the PV system and battery storage efficiently to reduce peak loads and ensure a stable energy supply.
  • Sustainable heat supply: The networking of heating systems and electricity production ensures a needs-based heat supply and minimizes energy consumption and CO₂ emissions.

Advantages of sector coupling in the Hubland project:

  1. Energy efficiency: Optimized use of electricity, heat and mobility, adapted to the needs of residents.
  2. Cost reduction: Cheaper electricity and savings through the use of solar energy and an efficient charging infrastructure.
  3. Sustainability: Maximum use of solar power and minimization of CO₂ emissions.
  4. Future viability: Basis for future expansions such as hydrogen technologies or intelligent storage solutions.

Conclusion: Sector coupling and decarbonization in the Hubland project

The project impressively demonstrates how sector coupling and smart home technology can actively contribute to decarbonization. By intelligently combining electricity, heat and mobility, resources are used efficiently, CO₂ emissions are reduced and residents' energy costs are lowered.

The use of locally generated solar power for households and e-mobility, combined with innovative load management systems, underlines the forward-looking approach of this project. It is an example of how sustainable energy concepts can offer not only ecological but also economic benefits.

The Hubland project sets new standards for resource-conserving living and shows that decarbonization is not just a vision, but is already feasible today - for a greener, independent energy future.

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