Start of main content

Main sessions


Chair: Christophe Boisseau (France)
Rapporteurs: Arnaud Allais (France), François Gentils (France)

Session 1 deals with all aspects related to the components used in the electricity distribution networks: cables, overhead lines, primary and secondary substations, transformers, switchgear plus their control, protection and monitoring systems, new active power electronics devices.

It covers topics related to the life cycle optimisation of assets from design through installation, operation and maintenance, monitoring and diagnosis, to end of life management, including new techniques such as Big Data and Artificial Intelligence. The session also covers environmental aspects including eco-design and life cycle analysis, standardisation, ergonomics and safety.

It aims to provide an overview of the state-of-the-art in component design and proposals for future components, including the ones needed for smartgrids, e-mobility, smart cities and microgrids. This session is an opportunity for Distribution System Operators (DSOs) and manufacturers to share their objectives.


Chair: Britta Heimbach (Switzerland)
Rapporteurs: Jan Desmet (Belgium), Jan Meyer (Germany), Herwig Renner (Austria)

Session 2 deals with all phenomena related to power quality (PQ). This includes flicker, unbalance and distortion in the frequency range up to 500 kHz.

The session covers all aspects of electromagnetic compatibility (EMC) including emission, immunity and its coordination and standardisation. Conducted and radiated electromagnetic interferences as well as electric and magnetic fields (EMF) issues are also addressed. Specific focus is put on the PQ characteristic of modern power electronic devices and PQ challenges related to the operation of distribution grids with very high share of power electronics.

Furthermore, new measurement techniques, analysis of big PQ data and the management of PQ at the interface between Distribution System Operators (DSOs) and Transmission System Operators (TSOs) are important topics for Session 2. Beside application examples and case studies, new modelling approaches and system simulation studies are covered.


Chair: Markus Zdrallek (Germany)
Rapporteurs: Andreas Abart (Austria), Carsten Böse (Germany), Ignaz Hübl (Austria)

Session 3 traditionally deals with the operation of distribution networks, including control technology and system protection, which is a more and more challenging topic in the emerging environment of digitalisation, smart grids, distributed generation and e-mobility.

The relevant technical and economic targets of distribution grid operators, the expectations and requirements of stakeholders, as well as solution strategies of scientists and manufacturers’ new products will be presented and discussed in Session 3.

Both recent practical experiences and the results from current research as the basis of future developments are very welcome.


Chair: Simon Terry (UK)
Rapporteurs: Helfried Brunner (Austria) Ricardo Prata (Portugal) Goran Strbac (UK)

Session 4 deals with the challenges of adapting distribution networks to facilitate the efficient integration of low carbon, renewable and Distributed Energy Resources (DER), from the integration perspective.

These include Distributed Generation (DG), energy storage, new loads (e.g. electric heating and Electric Vehicles (EVs)), active demand and aggregation of DER (e.g. Virtual Power Plants). DER integration challenges are likely to feature across all CIRED sessions so Session 4 specifically focuses on emerging technologies and solutions, results from research, development or demonstration programmes with results from network and system integration trials being particularly valued.

Session 4 papers will highlight the integration of DER within distribution networks through technical, commercial and regulatory solutions. Papers may describe developments in network management, demand side response, energy storage integration, efficient utilisation of electricity, network monitoring, telecommunications and data analytics and the role of DER in wider DSO business operations.

Also within the scope of Session 4 is whole energy system optimisation (including integration across other infrastructure systems and energy vectors), efficient management of network losses and the results from the larger smart grid demonstration projects.


Chair: Fabrizio Pilo (Italy)
Rapporteurs: Riccardo Lama (Italy) Giovanni Valtorta (Italy)

Session 5 deals with all aspects related to the short and long term development of high, medium and low voltage distribution networks, with reference to the changing requirements for electricity distribution including, but not limited to, smart grids and active distribution networks, electric vehicles, storage, active demand and distributed energy resources integration, present and future customer quality of supply requirements, and optimum asset utilisation techniques and strategies.

There is increasing interest in strategies designed to meet the rapidly changing level of demand in both rural and urban areas, the extension of electrification in rural areas requiring a high quality of supply, and development strategies intended to increase resiliency against low probability high risk extreme events.


Chair: Peter Söderström (Sweden)
Rapporteurs: Peter Kjaer Hansen (Denmark) Dag Eirik Nordgård (Norway)

Session 6 focuses on a future electrical system with new business models, active customers, flexibility, risk management and digitalisation as key parts of the energy transition.

Future regulation needs to foster and enable R&D and investments in new marketplaces and network services, when microgrids and energy communities open the door for e.g. the mass-roll-out of e-mobility, local energy optimisation and local markets. Security and privacy by design must have high priority in the light of ongoing digitalisation, where security of supply, customer data, new data platforms and IoTs are being challenged by the cyber threat.

At the same time the asset/risk management and business optimisation is still key for the DSO. Ageing networks need to be replaced in the near future. But what impacts, strategic choices, options and limitations are crucial for the DSO to understand and handle when the future is changing?