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ESO content (300)
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…
Control room operations
No one can control the weather. While GB’s electricity system is very resilient, there are times that Mother Nature makes herself known.
Control room operations
Our engineers and experts work around the clock to make sure that the right amount of electricity gets to where it’s needed, when it’s needed.
Control room operations
The Electricity National Control Centre operates GB’s electricity system in real time.
Control room operations
Under the RIIO-2 business plan, the ESO has transformational ambitions which deliver significant benefits, many of which are dependent on enhanced balancing capabilities in our Electricity National…
Our strategy
We’re passionate about transparency. That’s why we’ve established a number of stakeholder groups. Each group has an external chair, and members are selected from both inside and outside the energy…