Your Energy, Your Future, Our Purpose

We are the National Energy 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. 

The UK’s 2023 Energy Act established an independent system planner and operator to help accelerate Great Britain’s energy transition; creating the National Energy System Operator (NESO). 

NESO is built on our previous experience as the Electricity System Operator (ESO), where we had extensive expertise in balancing electricity supply and demand 24/7, whilst making sure the networks we operated and the markets we served were prepared for the future. 

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Introducing NESO

Fundamental to NESO is the ability to bring an independent, impartial voice to energy system planning and operations that takes this whole system view. We’ll consider all the interrelated challenges and trade-offs and ultimately work towards optimal outcomes for energy consumers.

We bring together eight activities required to deliver the plans, markets and operations of the energy system of today and the future. Bringing these activities together in one organisation encourages holistic thinking on the most cost-efficient and sustainable solutions to the needs of our customers.

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Our Clean Power 2030 advice to Government

Read our comprehensive and independent analysis of how to achieve Clean Power in 2030. Our analysis concludes that Clean Power is a huge challenge but is achievable for Great Britain by 2030.

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We're here to help

We are committed to supporting our customers, providing the right service and support when you need it and in a way that suits you. Our newly created NESO help centre provides immediate access to our to our most popular queries and frequently asked questions. Alternatively, you can access our dedicated customer support team by phone or email, who can offer you responsive, personalised support.

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Winter Outlook Report 2024/25

We've published our Winter Outlook 2024/25, helping industry to prepare for the season ahead. Central to our role as NESO is a whole system approach to strengthening energy security, helping deliver net zero and ensuring household bills are affordable in the long term.

Great Britain's Energy Statistics

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

Our control room experts continue to balance supply and demand second by second and you can follow the mix live in the carbon intensity dashboard or download our carbon intensity app – available on Google Play Store and The App Store.

You can also see Great Britain's monthly energy generation and how much came from sources such as wind, solar and biomass in our monthly snapshot. 

About NESO

NESO is the National Energy System Operator for Great Britain. We move power around Great Britain to keep homes and businesses supplied with the energy they need 24/7, 365 days a year. This is the first time in Great Britain that one organisation will plan and operate the whole energy system.


 

Could you keep Great Britain's lights on?

To give you some small insight into our world at NESO, we’ve developed a game where you can attempt to balance the grid, keeping it stable while facing some of the challenges our control room operatives experience daily.

Power cut in your area?

Experiencing a power cut? Find out what to do and who to contact.

Helping our customers get ready for NESO

Find out what becoming NESO means for you. NESO has been established as a new independent organisation responsible for planning Britain's entire energy system, operating the electricity network, and offering expert advice to the sector's decision-makers. 

News

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