The data presented is published as part of the iDesignRES project, specifically under WP 1, Task 1.1. This task involved collecting detailed energy system data, here for the North Sea region and focusing on electricity, to serve as test data for the models utilized within the iDesignRES project. The data presented here covers electricity generation, consumption, and the power grid of the North Sea region and is used as a macro-region validation use case for testing and validating the project’s models. It includes detailed information on power generation assets. Additionally, it contains the high-voltage transmission grid and interconnections between countries. Data on load distribution through the grid, as well as load time series data for 2024 with hourly temporal resolution, have been embedded in the dataset. The dataset spans Norway, Germany, the Netherlands, Denmark, the United Kingdom, and Belgium, with France included for completeness.

Version 1.2.2 Version 1.2.2 introduces a targeted correction for Denmark generation data.In version 1.2.1, a subset of Denmark conversion units had installed capacity set to zero, which caused underestimation in country totals and affected downstream aggregation outputs.