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ESO content (107)
Data Portal
IntroductionThis page provides further details on the Data Portal’s application programming interface (API), for users who wish to write code to access information…
Data Portal
Below is the National Grid ESO Open Data Licence v1.0. Please note, that each dataset on the ESO data portal is licenced on an individual basis and that this licence only applies to the…
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Balancing services
2024-25 Frequency Response volumes D3
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…
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…
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
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
Find out about the different types of existing frequency response services and how to get involved.