Utrilla, F. David MartínDavi-Arderius, DanielMartínez, Alberto GilChaves-Ávila, José PabloArriola, Inés Gómez2020Utrilla , F D M , Davi-Arderius , D , Martínez , A G , Chaves-Ávila , J P & Arriola , I G 2020 , ' Large-scale demonstration of TSO–DSO coordination: the CoordiNet Spanish approach : the CoordiNet Spanish approach ' , CIRED - Open Access Proceedings Journal , vol. 2020 , no. 1 , pp. 724-727 . https://doi.org/10.1049/oap-cired.2021.02092515-0855researchoutputwizard: 11556/1366Publisher Copyright: © 2020 Institution of Engineering and Technology. All rights reserved.The necessary energy transition to decarbonise power systems is leading to increasingly important challenges for the operation of power systems. On the one hand, the intermittent nature of renewable generation requires system operators to procure system services in larger volumes than in the past. On the other hand, the growing penetration of medium- and small-scale, flexible demand and storage systems in distribution networks might result in congestions or voltage problems in this grid level, but these resources could potentially offer system services, if they are aggregated effectively and there is appropriate coordination between transmission system operators (TSOs), distribution system operators (DSOs) and aggregators. Therefore, an interesting topic to be analysed is whether distributed energy resources can replace traditional generation in the provision of system services, how this replacement will affect the system operators' roles and how to improve the coordination between TSOs and DSOs. The CoordiNet project aims at demonstrating, through different TSO–DSO coordination schemes, options for providing system services with flexible resources located at different voltage levels. This study shows the Spanish demonstrators, in which REE (TSO) and the two largest DSOs, i.e. e-distribución and i-DE participate, as well as IIT Comillas and Tecnalia, among several European partners.4174724enginfo:eu-repo/semantics/openAccessjournal article10.1049/oap-cired.2021.0209Power system managementDistributed power generationDistribution networksTransmission networksPower system managementDistributed power generationDistribution networksTransmission networksElectrical and Electronic EngineeringControl and Systems EngineeringEnergy Engineering and Power TechnologyProject IDinfo:eu-repo/grantAgreement/EC/H2020/824414/EU/Large scale campaigns to demonstrate how TSO-DSO shall act in a coordinated manner to procure grid services in the most reliable and efficient way/CoordiNetinfo:eu-repo/grantAgreement/EC/H2020/824414/EU/Large scale campaigns to demonstrate how TSO-DSO shall act in a coordinated manner to procure grid services in the most reliable and efficient way/CoordiNetFunding InfoThe presented work has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 824414The presented work has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 824414http://www.scopus.com/inward/record.url?scp=85139188386&partnerID=8YFLogxK