EMS

In practice

In practice, EMS is primarily a StatnettNorway's system operator for the transmission grid - owns and operates the high-voltage network and operates Elhub. (and other TSOTransmission System Operator - responsible for operation and balance of the transmission grid at national level.) system - distribution grid companies use DMSDistribution Management System - system for real-time monitoring and control of the distribution network., not EMS. For technology vendors, EMS is relevant when building integrations for TSOs or when providing ancillary service data that feeds into the TSO's dispatch decisions. EMS systems are highly specialised and dominated by a small number of global vendors (GE, Siemens, ABB).

TvimenningOld Norse meaning 'two bound together' - one who solves a task shoulder to shoulder with another. does not build an EMS, but SEFTATvimenning’s VEE engine: validates, estimates and edits metering series with versioned time series and a full audit trail, before data goes to Elhub. stores and distributes values via SAMTYGDTvimenning platform for Elhub integration - handles all message types and processes to Elhub. or HANDSALTvimenning’s EDI server for bilateral message exchange: receives, translates, routes and acknowledges messages between companies and marketplaces. to systems that use them on the EMS side. This normally belongs on the OT side, so the claim is deliberately kept to the data layer, not the control itself.