flexQgrid: Practice-oriented implementation of the quota-based grid light concept for flexibility in and from the distribution grid

  • contact:

    Dr. Armin Ardone
    Nico Lehmann

  • funding:

    Federal Ministry for Economic Affairs and Energy

  • partner:

    9 partners from industry and science: Netze BW GmbH, Entelios AG, PSI Software AG, University of Stuttgart, Karlsruhe Institute of Technology (KIT), BlockInfinity GmbH, Fichtner IT Consulting GmbH, FZI Forschungszentrum Informatik

    Associated partners: PREdistribuce, a.s.,

  • startdate:


  • enddate:


The flexQgrid project aims to make a significant contribution both to the realization of flexibility utilization in the distribution grid and to the provision of flexibility for upstream voltage levels.

In flexQgrid, the approaches developed in the grid-control project (www.project-grid-control.de) for a quota-based grid light concept will be further developed and tested. With an intraday implementation of the quota model and the establishment of secondary trading, further flexibility potential can be used in the distribution grid. However, it is essential that asset operators (private individuals and market participants) are willing to provide flexibility. For this reason, appropriate incentives for providing flexibility are being investigated with the involvement of stakeholders. In addition, the technical framework conditions that have to be considered before and during the implementation of a quota model are also examined. Finally, the compatibility of the quota model with the legal and regulatory framework is examined and adjustment options are elaborated.

The developed solutions will be subjected to a field test. The aim is to use the infrastructure of smart meters like those that are currently being installed in Germany. In addition to battery storage and power generation systems, sector-coupling flexibility options (heat pumps, electric vehicles) and other flexible consumers are to be integrated. In order to ensure a reliable supply of flexibility, the dynamic behavior of these facilities is investigated in simulations and laboratory tests. On the basis of the knowledge gained, recommendations for action are derived and a roadmap with the necessary steps for the use of the quota-based grid light concept is developed.

Within the framework of flexQgrid, the Chair of Energy Economics will investigate the incentives necessary for providing flexibility in the low-voltage grid. The price/quantity combinations on the supply and demand side of flexibility are largely unknown and have to be assessed exemplarily before introducing a quota model. Instruments are developed, e.g. surveys and expert interviews, which make it possible to examine the preferences of flexibility providers and thus quantify the socio-economic constraints. The aim is to achieve reliable and valid results and to include these results in the market simulations. In this way, market behavior can be observed and conclusions can be drawn on the market design.