Definition
Structural changes are the ones that move relationships rather than numbers, and they are harder than they look. Correcting a metering valueOne measurement from one metering point for one period of time. The building block all settlement rests on. touches one value in one period. Moving a 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. to another plant, merging two plants or splitting one touches everything that pointed at the old structure - historical metering values, settlements already run, reports already filed. The hard question is always what happens to the past: should the history follow to the new structure, or stay with the old? Both answers are right in different contexts, and a system supporting only one forces manual detours. This is why structural changes need traceability with validity dates, not just an update.