Definition
A data model is a structured description of the data a system processes: which entities exist, what attributes they have and how they are related to one another. In the energy sector, the Common Information Model (CIMCommon Information Model - IEC standard for semantic modeling of the electricity system, the basis for data exchange between TSOs across Europe.) - an IECInternational Electrotechnical Commission - global standards body for electrotechnology and power systems. standard - is the dominant data model for power system components (lines, transformers, metering points, BRPs, etc.). CIM is used by ENTSO-EEuropean Network of Transmission System Operators for Electricity - collaborative body for European TSOs coordinating joint grid operations and regulations. and StatnettNorway's system operator for the transmission grid - owns and operates the high-voltage network and operates Elhub. in system integration. For CIS and MDMMeter Data Management - system for collection, storage, quality assurance and distribution of metering data from the electricity grid. systems there is typically an industry-specific domain model that defines the relationship between electricity supplierCompany that sells electricity to end users - purchases power in the wholesale market and sells it to consumers., metering pointThe fundamental unit in Elhub - the unique point in the electricity network where energy is measured and settled, identified by an 18-digit GSRN number., metering dataData from electricity meters - the foundation for billing, balance settlement and market processes in the power market., contract and invoice. Good data modelling is critical for data qualityThe degree of accuracy, completeness and reliability in a dataset - critical for correct billing and balance settlement in the power sector., integration capability and maintainability. Poor modelling is frequently the reason systems become difficult to change - a classic sign of technical debtAccumulated costs of quick, short-term technological decisions - makes future development slower and more expensive..