This dataset was created using the referenced code at 10.5281/zenodo.20529177. For more information on how this dataset can be generated, consult the README.md that is found there. The results are presented in "Cascading Failures and Critical Infrastructures in Future Renewable European Power Systems" arXiv:2603.24529. In this work, we assess the risk of cascading failures and system splits in the European power grid for different carbon reduction scenarios. We analyze the most likely and most dangerous splits, and identify critical transmission infrastructures and we discuss potential countermeasures that can address the problem of cascades. Our results show that while the risks of splits causing power failures rises with decarbonization, it can be mitigated cost efficiently.