Common Grid Model

The Common Grid Model (CGM) provides a unified representation of the power system across the Baltic and Pan-European regions to support secure power market operations and supply reliability. It is generated for various timeframes, from a year ahead to intraday, each serving different analytical purposes. Regional Coordination Centres (RCCs) verify the quality and plausibility of Individual Grid Models (IGMs) submitted by Transmission System Operators (TSOs), support IGM improvement, merge them into a single CGM, as well as further refine and improve the CGM.

TSOs create IGMs, which are detailed forecasts of their national grids. These are shared with RCCs, which merge around 40 IGMs into a single CGM reflecting the entire European transmission network. The resulting CGM ensures all TSOs and RCCs have a shared, accurate overview of the grid and enables key services such as Coordinated Capacity Calculation, Coordinated Security Analysis, Outage Planning Coordination, and Short-Term Adequacy assessments.

At the regional level, one of Baltic RCC’s key tasks is performing the merge of the Baltic CGM, which is used to perform Coordinated Capacity Calculation, Coordinated Security Analysis, and Outage Planning Coordination of the transmission network system in the Baltic region. The regional CGMs are provided for various timeframes, including year-ahead, month-ahead, week-ahead, two-days-ahead, day-ahead, and intraday.

See the video below for a basic explanation of the task provided by ENTSO-E.