Demo 1 — Luxembourg

Transforming Rout Lëns into an Intelligent Green District

Innovative multi-energy grid-interactive district with a large fleet of EVs

Electricity, Gas, Heat

Partners involved

The Luxembourgish demo, situated in the district of Rout Lëns in Luxembourg, aims to create a symbiotic relationship between urban living and nature, showcasing intelligent green technologies and energy solutions. In this demonstrator, energy assets and processes will be modeled and integrated into a cloud-based Operational Framework for iGFBs (COFIGFB platform). Intelligent applications and tools will then use these models to conduct analyses and facilitate decision-making, optimizing the operation of the district’s energy system.

The Rout Lëns district spans 163,226 m², accommodating approximately 1500 dwellings. The district has power demand for heat, hot water, and electricity, reaching up to 2.5 MW, 0.9 MW, and 3.0 MW respectively. In addition, it has a gross parking area of about 53,458 m², which is expected to accommodate approximately 1,135 EVs plus 310 plug-in HVs by 2040. Further PV systems are expected to be connected in the surrounding area.

Through this demo, the Rout Lëns district is committed to minimizing its energy dependence and its carbon footprint via multiple local generation assets based on renewable energies and efficient power processing systems. The district also plans to evolve towards new mobility models with massive use of EVs.

  • Demonstrate a cloud-based operating framework for iGFBs;
  • Leverage digital models based on Building Information Modeling (BIM) at various levels (station, local operation, energy ecosystem, and market) to ensure interoperability and connectivity;
  • Implement a power processing hub with energy storage capability;
  • Process energy from multiple sources, regulate internal power flows, and interact with the electrical grid;
  • Design optimal flexibility service/products to be offered to the DSO;
  • Improve the stability, robustness and resilience of the grid;
  • Develop a digital twin focused on iGFBs (iGFB-DT) integrated into the Nationwide Digital-Twin (NATIONTWIN) project by LIST.
  • PV roof panels (100 kWp, static roof PV and potential neighbour PV facility);
  • BIPV (30 kWp, controllable active windows);
  • EV fleet charging (500 EVs management, 350 kW fast charging with V2G and slow charging units);
  • Utility-scale BESS (capacity of 500 kW/ 500 kWh);
  • Second-life utility-scale BESS (capacity of 400 kW/ 400 kWh);
  • AFC fuel cell (capacity of 10 kW – 400 Vac – 48/130 Vdc GenCell REX™);
  • Multi-port power bridge (capacity of 25 kW/400Vac/50-1000Vdc – DAB with MF transformer);
  • Air-water heat pumps;
  • Geothermal heat pumps;
  • Grey water heat recovery;
  • Biomass boiler.
  • Showcase how buildings can regulate and form power distribution networks through intelligent digital operating systems and power processing hubs with energy storage capacity;
  • Highlight the role of power processing hubs with energy storage in offering support services to the electrical grid;
  • Demonstrate the interoperability between iGFBs and the DSO, and the ways in which it generates additional income;
  • Illustrate the importance of EV fleet charging management in buildings to foster e-mobility;
  • Prove that the smart asset performance monitoring functions of the COFIGFB reduce operating expenses and enable energy communities made up of building occupants.

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