Search results
Filter by
ESO content (807)
Balancing services
We will approach potential service providers directly if a specific requirement is identified. Intertrip services are required as an automatic control arrangement where generation may be reduced or…
Balancing services
SO to SO services are provided mutually with other transmission system operators connected to Britain's transmission system via interconnectors.
Balancing services
Find out about the different types of existing frequency response services and how to get involved.
Balancing services
This page holds historic frequency data for Great Britain at a 1 second resolution. N.B. 2019 data was updated on 14/2/2020 to correct for errors.
Data for 2020 onwards will be published on the…
Balancing services
At certain times of the day, we need access to sources of extra power in the form of either increased generation or demand reduction. This enables us to manage a greater than forecast…
Balancing services
Reactive power services are how we make sure voltage levels on the system remain within a given range, above or below nominal voltage levels. We instruct generators or other asset owners to either…
Balancing services
The Obligatory Reactive Power Service (ORPS) is the provision of varying reactive power output. At any given output generators may be requested to produce or absorb reactive power to help manage…
Electricity Explained
So things that are not moving need a force – like a gust of wind – to get them moving, while things that are moving will keep moving unless a force, like friction, causes…
Balancing services
At National Grid ESO, we have robust processes in place to monitor balancing services performance and hold balancing providers to account against contractual delivery commitments.Starting from…
Balancing services
Having launched our new Dynamic Response Services, Dynamic Containment (DC), Dynamic Moderation (DM) and Dynamic Regulation (DR), we are aiming to lift the volume caps on DM and DR to allow our…