Architectures for optimised interaction between TSOs and DSOs: compliance with the present practice, regulation and roadmaps

Andrei Morch, Gianluigi Migliavacca, Ivana Kockar, Han Xu, Julia Merino Fernandez, Helena Gerard

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Procurement and activation of resources from distribution network for ancillary services will require new grid organisation for ensuring and improving interaction between TSOs and DSOs. EU H2020 project SmartNet proposes five different architectures or coordination schemes (CSs) that each present a different way of organizing this interaction with a specific set of roles taken by the system operators and detailed market design. The study made a comparative evaluation of these CSs based on realistic scenarios for 2030 and implemented in simulations. The following study made a comprehensive screening of more than 40 documents based on a selection of key topics, which are essential for SmartNet and evaluated how the CSs are aligned with the present national and European policy goals and positions of the key industrial stakeholders. The screening was structured according to a set of so-called topics of interest, which the project considers to be essential for definition of wellfunctioning TSO-DSO interaction.
The general conclusion of the study is neither the main hypothesis nor the suggested CSs directly conflict with terms of the EU regulation. However, the regulation does not address several topics, which are crucial for large scale utilisation of Distributed Energy Resources in ancillary services. Without common EU regulations different solutions will develop in the distribution areas, the most diverse and non-harmonized solutions will be implemented in agreement between DSOs and adjoining TSO (e.g. nation- or region-wise under influence of TSO). This will not necessarily hamper the utilisation of local flexibility in the transmission grids, but it will certainly make more difficult the development towards cross-border utilisation of distributed energy resources.
Original languageEnglish
Number of pages5
Publication statusPublished - 3 Jun 2019
Event25th International Conference and Exhibition on Electricity Distribution - Madrid, Spain
Duration: 3 Jun 20196 Jun 2019


Conference25th International Conference and Exhibition on Electricity Distribution
Abbreviated titleCIRED


  • DSO transition
  • TSO DSO interaction
  • cost assessment
  • EU regulation review
  • EU legislation review
  • electricity market


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