Welcome to ESO

We are the electricity system operator for Great Britain, making sure that Great Britain has the essential energy it needs by ensuring supply meets demand every second of every day. 

Find out what we do

Field Glow Lines

Electricity Ten Year Statement (ETYS) 2023

We’ve released our Electricity Ten Year Statement (ETYS) 2023 publication. ETYS is our view of future transmission requirements and the capability of Great Britain’s National Electricity Transmission System (NETS) over the next ten years. 

Boy planting seeds in eggcup

FES 2023

We’ve published Future Energy Scenarios 2023, which sets out credible ways we can achieve net zero by 2050, as well as the Government's target to a decarbonised electricity system by 2035.

Parent and child laughing on sofa

Great Britain's monthly electricity stats

Ever wonder how much electricity is generated and used in Great Britain?

Find out about Great Britain's electricity generation and how much came from sources such as wind, solar and biomass in our monthly snapshot. 

Our control room experts continue to balance supply and demand second by second as we move into the spring months – and you can follow the electricity mix live in our carbon intensity app - available on Google Play Store and The App Store.


Keen to learn more about how we balance the grid? See our latest stories below.