System Development Committee

A fundamental role of the Transmission System Operators (TSOs) is to plan and develop a secure, efficient and economic electricity transmission system. This involves ensuring a consistently high level of power quality, making sure that security standards are met and, where appropriate, researching and deploying novel technologies.

The ENTSO-E Secretariat’s System Development team has a supporting role for one of the four ENTSO-E committees, namely the System Development Committee (SDC) as well as all of the associated Working and Regional Groups and the Grid Connection European Stakeholder Committee (GC ESC).

The SDC, chaired by Dimitrios Chaniotis, RTE, is in charge of TSO co-operation regarding the network development and planning. Its main mission is to co-ordinate the development of a secure, environmentally sustainable and economic transmission system with the aim of creating a robust European grid which can facilitate the creation of a well-functioning European electricity market and, from the planning point of view, a high standard of interoperability, reliability and security.

Key areas of work for the SDC include:


System Development Structure

The ENTSO-E Secretariat’s System Development team consists of:

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Mid Term Adequacy and Seasonal Outlooks

System adequacy is the ability for a power system to meet demand at all times and thus to guarantee the security of the supply. Currently, two adequacy forecast reports are published by ENTSO-E, each one with a specific time horizon:

ENTSO-E Mid-term Adequacy Forecast (MAF) is a 1 to 10 year ahead Pan-European assessment of power system adequacy. It is based upon a state-of-the-art probabilistic analysis conducted using sophisticated market modelling tools. It provides stakeholders with comprehensive support to take qualified decisions which are driven and affected by the level of adequacy in the European power system. This yearly report especially aim to give input for investment and energy policy decisions such as commission and decommissioning plans, political support schemes as well improving stakeholder awareness about forecasted levels of adequacy.

ENTSO-E Winter and Summer Outlooks focus on exploring the main risks identified within a seasonal period, highlighting the possibilities for neighbouring countries to contribute to the generation/demand balance in critical situations. These reports consider uncertainties such as climatic conditions and outages, as well as other risks incurred by the system including the evolution of load, load-management, generation capacities, and stability issues

The purpose of seasonal outlooks is to provide a platform for information exchange amongst TSOs and market stakeholders, promote discussion on transparency, and inform stakeholders on the potential system risks so appropriate decisions can be made on topics such as maintenance schedules, postponement in decommissioning, and stakeholder awareness about levels of adequacy.

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Market and network data and models

The integration of large amounts of renewable energy sources, the completion of the internal electricity market, as well as new storage technologies, demand side response, digital revolution and evolving energy policies require continuous update of the input data and assumptions.

Enhanced pan European consistency is being striven in all datasets. This concerns mainly the following area:

  • Demand modelling;
  • Generation modelling, including wind and PV;
  • Storage modelling, especially hydro storage;
  • Transmission capacity;
  • Network modelling

The Ten-Year Network Development Plan and Regional Investment Plans

Timely and well-planned development of new network infrastructure is crucial in achieving the European internal energy market (IEM), as well as allowing for the integration of an ever increasing amount of renewable energy, and meeting the challenge of more dispersed on- and offshore energy sources which need be connected with major demand centres. This is why EU legislation has mandated ENTSO-E with the delivery of a biennial Ten-Year Network Development Plan (TYNDP), the first pilot of which was released in 2010.

The TYNDP identifies gaps in infrastructure from a European perspective and informs decision-makers in Member States and other stakeholders about projects with a network-wide impact.

The TYNDP builds on national and regional investment plans called RIPs. ENTSO-E has formed six regional groups to identify and address network investment and development challenges reflecting regional particularities and needs.​

ENTSO-E continuously seeks to improve the level of detail and sophistication of the TYNDP. These constant efforts aim to ensure that ENTSO-E’s TYNDP remains the key tool for network investment decision-making.

For more information on the TYNDP and the corresponding drafting process please contact info@entsoe.eu.

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Asset Implementation and Management

The objective of the Working Group Asset Implementation and Management (WG AIM) is to develop and coordinate recommendations in relation to asset implementation and management, to support the implementation of assets identified in the development plans, and to promote new technologies for existing grids.

Asset management is one of the core business activities of transmission system operators. It focuses on maintaining healthy, robust and cost effective network infrastructures and ensuring high security of power supply. This activity has a significant impact on the system investment and operation, which accounts for 85% of annual expenditure.

Asset Management is defined as the systematic and coordinated activities and practices through which a TSO optimally develops and manages its assets and their associated performance, risks and expenditures over their lifecycle to fulfil the requirements and needs of grid users in a safe, secure, sustainable, environmental and efficient manner.

Key areas of work for WG AIM are:

  • Find harmonised positions on asset implementation and management issues including permitting procedure and environmental requirements and standards

  • Propose position papers for advocating on European legislation initiatives regarding above mentioned asset implementation and management topics

  • Promote information exchanges on best practices and experiences

  • Identify opportunities and risks associated with new technologies in close relationship with the Research and Innovation activities

  • Benchmark and review current experience on asset implementation and management including comparison of maintenance strategies, permitting procedures and environmental requirements For more information please contact us: info@entsoe.eu

Guide for implementing Directive 2013/35/EU on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (electromagnetic fields)

The document is intended to help European TSOs to implement the Directive. The objective is to explain how to assess exposure and to evaluate compliance, and to indicate the most critical situations for transmission activities and formulate possible measures to be taken.

Real-life implementation of electricity projects of common interest – best practices

This report is based on expert knowledge, a survey of selected PCI projects that are close to construction or in the permission process, and real-life experiences of TSOs in implementing other transmission projects.

It provide examples of best practices in public consultation and consent for real-life project implementation and summarises key recommendations to the Infrastructure Forum and TSOs.

Download Report


Position papers


The North Seas Countries’ Offshore Grid Initiative (NSCOGI)

In order to achieve the renewable targets up to 2020, the The North Seas Countries’ Offshore Grid initiative (NSCOGI) was formed as the responsible body to evaluate and facilitate coordinated development of a possible offshore grid that maximises the efficient and economic use of those renewable sources and infrastructure investments.

The Memorandum of Understanding (MoU) was signed on 3 December 2010 by the 10 countries around the North Seas represented by their energy ministries, supported by their Transmission System Operators (TSOs, organised in the European Network of Transmission System Operators for Electricity ENTSO-E), their regulators (organised in the Agency for the Cooperation of Energy Regulators ACER) and the European Commission together forming the NSCOGI.

Three working groups were created by the MoU in order to take the overarching objective into a set of deliverable to be taken forward:

  • WG1 - grid implementation
  • WG2 - market and regulation
  • WG3 - permissions and planning

Each working group was chaired by representatives of two countries energy ministries and coordinated by a programme board. The link below provides access to the final report and reports of the NSCOGI working groups:

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