Intraday ATCE
At the same time that Flow-based was taken into operational use in the day-ahead market, the ATC (Available Transfer Capacity) Extraction was taken into use in the intraday market.
Until the time that the intraday market platform is technically able to utilize Flow-based parameters, ATC capacity will be extracted from the Intraday Flow-based domain as a transitional solution for calculation and allocation of intraday cross-zonal capacities. Intraday capacity is calculated and allocated after the day-ahead market has closed, allowing market participants to adjust their positions based on real-time conditions and updated forecasts.
ATC is calculated through a coordinated process involving Transmission System Operators (TSOs). The TSOs collect input data, including network topology, generation forecasts, and load forecasts which is used to calculate the initial intraday ATC values. An algorithm is applied to determine the available capacity for intraday trading. This algorithm considers the physical constraints of the network and the impact of transactions on these constraints.
Intraday ATC includes cross-border capacity, enabling electricity to flow between different bidding zones. This helps optimize the use of the transmission network and manage congestion.
The goal of intraday ATC calculation is to maximize the available capacity for trading while ensuring the security and stability of the transmission network.
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