Practices and Architectures for TSO-DSO Data Exchange: European Landscape

This article gives an overview of TSO-DSO data exchanges when face the challenges posed by distributed energy resources and flexibility services in the distribution grid. Roles of TSOs and DSOs in the coordinated power system architecture are explained and use cases for TSO-DSO data exchange are provided. ICT architecture that supports data exchange in the coordinated power system is presented, with commonly used protocols. Additionally, the application of Internet of Things architecture is presented as a technology enabler for TSO-DSO data exchange in the near future. This paper is based on the H2020 TDX-ASSIST (www.tdx-assist.eu) deliverable D1.1 “TSO-DSO state of the art”.