GenCharts

Explainers

How the balancing mechanism, skip rate calculations and ancillary markets work.

Skip RatesWhat a skip is, and how NESO measures skip rates. Commercial Skip RateOur asset-owner view of skip rates: how the Commercial Skip Rate (CSR) differs from NESO's system-level metric, and why we use it. Skip Rate Exclusion and DisplacementOrders leave NESO's in-merit stack for three reasons: removed directly by an exclusion stage, indirect exclusion or displaced by other units. Cashout CalculationHow the GB cashout (imbalance) price is calculated, stage by stage. ReservesThe reserve services NESO uses to balance the grid, and what each provides. Frequency ResponseFrequency response services in GB: how NESO keeps grid frequency stable.