In this report, we analyse from a technical and legislative point of view the most promising applications of Distributed Ledger Technology to the electrical energy sector, as they were selected from the previous work performed in the AA between DG ENER and DG JRC, called Enerchain. Namely these use cases are smart metering, energy communities, flexibility services, certification of origin, and electro mobility. The outcome of the analysis is a short-list of conceptual applications of DLT to various trending topics and research areas in the energy sector. In this report we also describe the related energy regulatory packages, and ICT regulatory framework and discuss our blockchain considerations.