The Nordic TSOs took note of the stakeholders’ request to have more capacity in the ID timeframe. Though the starting point cannot be altered – i.e., the ID gate-opening capacity is the leftover capacity from the DA timeframe – the TSOs are willing to test in production whether more additional capacity can be released to the ID market, while monitoring the impact on real-time operations. The increase of this additional capacity (i.e., capacity that goes beyond the DA FB domain) can be obtained by increasing the ATCE relaxation parameters (see also: ATC Extraction Description). The TSOs will apply a 3% z2zPTDF relaxation in production instead of the 2% z2zPTDF relaxation that is applied today.
The new relaxation parameters will be introduced on May 1, 2025, i.e. Energy Delivery Day on May 2, 2025. The TSOs propose to test the new ATCE relaxation parameters over a two-month period. If the TSOs identify operational security risks in real-time operations due to this increased provision of additional capacity in the ID timeframe during the test period, the TSOs will return to the current ATCE relaxation settings within one week and inform the market accordingly. If no operational security risks caused by the increased relaxation parameters are identified within those two months, the 3% z2zPTDF ATCE relaxation parameters will continue to be used.