DIN EN IEC 62325-451-8:2025-02

This document deals with the exchange of information between different market participants in the European electricity market, particularly in connection with the planning and coordination of high-voltage direct current (HVDC) transmission systems. It covers processes, data models, and communication interfaces that are necessary for the exchange of HVDC schedules and data between grid operators and market participants. Key requirements of the document include the standardization of data formats for the exchange of HVDC schedules, aspects of interoperability between different systems and market participants, the specification of communication interfaces used for data exchange, and support for the market integration of HVDC systems in order to optimize their role in the electricity market. The document focuses specifically on high-voltage direct current (HVDC) transmission systems and their integration into the European energy market. It does not cover other power transmission or communication processes that fall outside this specific area. It is also tailored to European market standards and may not be directly applicable in other geographical regions or energy markets. Typical examples of application include the schedule transmission of HVDC systems, meaning the transmission of planning data to grid operators for the coordination of electricity flow via HVDC lines. Another topic is communication between market participants and grid operators to coordinate the operation of HVDC lines in real time in order to ensure a stable grid supply. The market integration of renewable energies is also addressed: HVDC systems are often used to efficiently integrate large amounts of renewable energy (for example, offshore wind energy) into the power grids, which makes the coordination of power flows particularly important.