The sources collectively explain how Energinet, Denmark’s transmission system operator, is adopting advanced information management principles to unify its electricity and gas grid data. They detail the use of Common Information Model (CIM), Common Grid Model Exchange Standard (CGMES), and IEC 61850 to create a “single source of truth” for grid assets and operations, facilitating seamless data exchange and interoperability with other Nordic and European TSOs. The texts highlight the importance of data governance, including establishing data councils, roles, and a metadata catalogue, while also referencing how other utilities like Amprion and Statnett have successfully implemented similar strategies. This comprehensive approach ensures regulatory compliance, enhances analytics, and supports future smart grid evolution.