Bidding Zone Study - Questionnaire on Transition Costs

Closed 14 Nov 2022

Opened 6 Sep 2022


In accordance with the ACER decision 29/2020 of 24 November 2020 on the methodology and as-sumptions that are to be used in the Bidding Zone Review process and for the alternative bidding zone configurations to be considered (BZR Methodology), Transmission System Operators ("TSOs") of all Bidding Zone Review Regions shall jointly perform a study in order to estimate transition costs occurring from a bidding zone reconfiguration. TSOs are therefore now launching a questionnaire on transition costs. Through this questionnaire, information on transition costs inherent to the specific bidding zone reconfigurations to be analysed in the bidding zone review will be gathered.

Why your views matter

We are seeking input from EU stakeholders and market participants on their transition costs. Based on this input, TSOs will estimate the transition costs linked to each specific bidding zone reconfiguration as set forth in ACER decision 11/2022. In accordance with the BZR Methdology, the resulting estimates shall be considered to calculate the minimum life time of a BZ configuration.


  • Anyone from any background


  • Market Network Codes