What a Grid Model Is and What It Is For
The problem a grid model solves A naive view of an electricity system is a single balance equation: total generation …
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Knowledge Grid
Technical Modules
How transmission and distribution networks are built, operated, and represented in computational models — from equipment physics to nodal pricing, expansion planning, and stability studies.
Module Index
Physical Anatomy of the Grid
Why there is a voltage hierarchy Transmitting power P at voltage V requires current I = P / (√3 · V · cos φ) on a …
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Topology, Data Models, and Sources
The network as a graph A grid model is a graph with electrical attributes. But which graph depends on the level of …
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Power Flow: The Core Computation
Per-unit normalisation Before any equations, one convention. Power system quantities are expressed per unit: each …
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System Operation and Security
Operating states Dy Liacco’s classification, still the standard framing, divides system conditions into states by …
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Modelling for Specific Use Cases
The preceding modules built one picture of the grid. This module deliberately breaks it into four, because there is no …
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