An alliance of representatives from science, business and environmental organizations has criticized the poor quality of data on the expansion of Germany’s power grids. They state in a letter to the Federal Network Agency, which was published on Wednesday, that the data provided on the portal VNBdigital cannot be automatically accessed and is also of poor quality in some cases. The data is „indispensable, for example, to optimize energy systems and accelerate the expansion of renewable energies,“ write the signatories, which include representatives from various universities and research institutes as well as Environmental Action Germany and the German Renewable Energy Federation.