Ancillary Services
Frequency Performance Payments (FPP) replaced the old Causer Pays methodology for frequency deviation penalties on 8 June 2025, adding new incentives for assets to stabilise the system’s frequency. The previous system penalised assets for deviating from their dispatch target but offered no rewards. The new two-sided FPP scheme rewards helpful frequency correction too, creating an additional revenue stream for assets. But how much value does this service generate today, and how does it compare to the old system?21 Aug 2025
