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+ Every year, RTE produces a report for the past year on the power system's operational reliability. Beyond being a legal obligation, it provides insight into the level of security of the network and the associated issues.

What is RTE’s reliability report?

RTE prepares a system reliability report each year which provides the main elements relating to the security of the power system operation for the past year: significant system events (ESS in French), key points on supply-demand balance (EOD), elements on the stability of the network, information on the high voltage threshold overruns, safety tools... It is intended for the Ministry for the Ecological Transition and for the CRE (French Energy Regulatory Commission) and the energy sector players. This report is prepared by the audit department of RTE.

What does the 2019 reliability report say?

Within a context of energy transition, the penetration of new renewable energy generation technologies (RE) as well as changes in the behaviour of the stakeholders and the European integration require RTE to continuously adapt. In a drive to keep pace with the changes expected to occur, RTE has implemented numerous initiatives to ensure high levels of reliability.

In 2019 it was observed that the French power system had lower margins on its supply-demand balance than in the past, and had increased variability of flows in direction and intensity, in particular because of the transformation of the European energy mix: increased cross-border trade, dispersion of generation.

In this context, the 2019 report highlighted the need in the future to capture the flexibilities offered by new renewable energy generation technologies, to help manage the supply-demand balance and to ensure the safe operation of the network. It recalls the importance of the availability and maintenance of the performance of the classic generation facilities, in an environment where these new technologies do not yet provide equivalent services.

At European level, in 2019 cooperation between all transmission system operators remains an essential asset for the security of supply of France and all interconnected countries, whether or not they are members of the European Union. This cooperation is reflected in the rapid development of interconnections, but also in the homogenisation of the power system operation rules with the implementation of the European network codes, which RTE is actively working on.

 

Download the 2019 reliability report

Contact

For further information, please contact olivier.wattier@rte-france.com, auditor at RTE’s Audit and Risk Department.

Additional information