The go-live for the Preliminary Flow-Based domain publication on JAO Publication Tool has been moved to 8 January 2026.
The Preliminary FB Domain represents an early release of a non-validated Flow-Based (FB) Domain, calculated by Nordic RCC utilizing D-2 (two days in advance) data provided by TSOs. This preliminary publication includes the same parameters as the official FB Domain and serves to offer an initial perspective on the anticipated FB Domain using the data available at that time. It is important to note that the Preliminary Domain has not been validated by the TSOs and shall not be seen as final. The Preliminary Domain should be regarded solely as an indicative reference and not as the finalized domain for the Day Ahead process.
More information is available in the Newsletter Published on 15 December 2025.