This thesis presents the process of design and implementation of a power grid simulator, with focus on the power grid configuration and load forecasting as part of a larger project. The overarching project aims to address the increasing complexity of power grids and the occurence of grid congestion. Its primary objective is to visualize these issues for educational purposes. For this subsystem, the specific goal is to provide a grid configuration, all necessary data to simulate it, and load predictions for the grid.