A digital data lake is a term for an aggregate database containing raw and unstructured data. Data is sent from the project's Living Labs. Data from the the project's data lake is used for further analysis and research.
Distribution System Operator is a term for local supply companies that supplies the users with one or more types of supply ex. electricity, water or heat.
Transmission System Operator (a state national entity, providing biogas or electricity with a defined infrastructure) EU defined term