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Limejump runs the UK’s first and only Virtual Frequency Programme, enabling those who would not normally be able to access dynamic frequency response to participate. Dynamic frequency response is the highest value product available as it requires us to deliver real time response to frequency changes. Through our virtual power plant technology, we can manage and automate the dispatch of various asset types in real time to participate and earn revenue.
The Capacity Market will commence in winter 17/18. Its purpose is to ensure there is sufficient power generation connected to the grid to meet demand by flexing existing generation. Generators receive capacity payment based on their availability during system stress events.
STOR is a service that provides a capacity payment and/or a utilisation payment for being available during a certain period of predicted network imbalance. STOR is used to cover situations where there is not enough generation to meet demand.
FFR is a service to manage grid frequency so it stays within the tolerance levels of ±1% of 50Hz. National Grid provides a capacity payment for being available to help balance when the system is either too short or too long. There are two types FFR service: Static FFR and Dynamic FFR. Dynamic FFR requires real time response to constantly keep the system within its tolerance levels, whilst Static FFR is only triggered when the frequency breaches defined levels.
In this frequency service, participants must achieve 100% active power output within a second (or less) of registering a frequency deviation.
Triads are the three highest national half hourly system peaks across the winter period. Triads are used to determine the TNUoS charges applied to electricity suppliers. Triads are charged based on how much electricity is being consumed by their customers during Triad periods, with a portion of these costs passed on to the customers.