GB Reduced Model

The GB Reduced Model is a simplified representation of the National Electricity Transmission System of Great Britain, developed using DIgSILENT PowerFactory. Based on the 2024 Electricity Ten Year Statement (ETYS), the system is divided into 28 zones, each evaluated for generation and demand. Generators are categorised by fuel type, and demand is split into active and reactive components. Line impedances are calculated to reflect electrical distances between zones.

The GB reduced model is a flexible network model where changes can be easily implemented and thus enabling a wider variety of static and dynamic studies scenarios to be carried out.

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