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.
The SEP team work in partnership with governments, Ofgem, industry and wider stakeholders to guide Great Britain on what infrastructure and sources of electricity are required to securely accelerate the transition away from fossil fuels into new energy technologies, including renewable energy.
Security of Supply analyses where the energy we need over the short, medium and long-term will come from. In doing so it assesses a wide range of factors that could affect our supply of energy, enabling early actions and decisions to ensure we can meet future demand.
From hospitals to households, telecoms to transportation, our society relies on electricity. Our control centre makes sure there is always a reliable and safe supply as we move megawatts around the country.
We will deliver efficient system access for Generation and Demand projects, so that those projects that are first ready can be first served – delivering the energy system to meet net zero and facilitating economic growth by connecting new and existing industries.
Our energy system is complex, with an increasing number of interconnections. This means that disruption to one part can have implications for another. But this complexity also provides us with more options to mitigate problems.
We will develop comprehensive and independent insights across the entire energy system, offering clear recommendations to policy makers, industry decision makers and leadership across our organisation on how to accelerate energy transition progress.
Whether you’re interested in the innovation underway in the Markets team or are looking to brush up on market fundamentals, you’ve come to the right place.
NESO will bring together data from multiple sources in a way that enables the modern digitalised energy system needed for a low carbon, flexible and affordable future.
We are delighted to announce that the Day 1 for National Energy System Operator (NESO) was Tuesday 1 October 2024.
We’re experts in all things energy – how much we use, where it comes from and how it moves around Great Britain. And we want to share all that knowledge with you.
Confused about carbon? Need knowledge on net zero? Interested in EVs? You’ve come to the right place.
Ever wonder how much electricity is generated and used in Great Britain? In our monthly snapshot, you can find out about Great Britain’s electricity generation and how much came from sources such as wind, solar, and biomass.
We're the experts in electricity – how much we use, where it comes from, and how it travels into homes and businesses. Understanding how much electricity we consume, and which devices are most power-hungry is no easy task.
Hydrogen is a growing part of the energy system. As NESO, we have been building our hydrogen expertise during our journey to being NESO and we would love to share it with you.
Gas has been a part of Great Britain’s energy mix since the Victorian Era. At NESO, we have been supporting the UK Gas system for many years through our supply and demand forecasts. We are building our expertise in gas as we strategically plan the gas system of the future.
To give you some insight into the world of balancing the grid, we’ve developed a game where you can attempt to keep the grid stable while facing some of the challenges our control room operatives experience daily.
Are you a balancing provider looking to supply services to us, trying to find the latest Grid Code, or TNUoS charging guidance? Find all the information you need including our operational data, forecasts, and reports designed to help you make efficient decisions.
Balancing costs are those costs associated with (A) the Balancing Mechanism, (B) balancing services, and (C) energy trading.
We procure services to balance demand and supply and to ensure the security and quality of electricity supply across Britain's transmission system.
All users of the electricity transmission system pay to use it. This brief overview looks at who pays, for what, and how the charges are calculated.
Our team of code administrators oversees all aspects of the code modification processes and related meetings. So whether you’re new to the process, or experienced in the way it all works, we’ll help you get to the information you need.
In this section, we’ve got everything you need to understand the connections process. Including what you need to do to connect to, or make use of the National Electricity Transmission System (NETS).
These pages contain data and support for users of the National Electricity Transmission System (NETS). Here you will find the latest operational data, forecasts, and reports.
Our Network Access Planning engineers are responsible for assessing, co-ordinating and sanctioning the planned release of assets from the National Electricity Transmission System.
All the latest news from the heart of Great Britain's electricity system. Find out how we balance the grid, how we’re innovating for the future, and who the people are that are working on Britain's energy system around the clock.
We've got a wide range of publications offering energy insights and analysis. Download our reports and data to see the innovative ways we are transforming the future of Great Britain’s energy.
Find a wide range of publications that provide energy insight and analysis right here, as well as information about how we're shaping the future of energy in Great Britain.
The Beyond 2030 report builds on top of the Holistic Network Design and makes a set of network recommendations throughout the 2030s.
Future Energy Scenarios (FES) represent a range of different, credible ways to decarbonise our energy system as we strive towards the 2050 target.
The Network Option Assessment (NOA) provides our recommendation for which network reinforcement projects should receive investment and when.
Achieving clean power by 2030 whilst keeping the system secure and affordable for consumers would be a world-leading achievement.
The Electricity Ten Year Statement (ETYS) is our view of future transmission requirements and the capability of Great Britain’s National Electricity Transmission System (NETS) over the next 10 years.
A 36-bus equivalent network representing the National Electricity Transmission System of Great Britain modelled in DIgSILENT PowerFactory.
We are developing new ways to balance electricity supply and demand and manage a low carbon electricity system, helping to meet net zero targets and minimise costs for consumers.
Summer Outlook reports are designed to inform the energy industry and support its preparations, we also outline Great Britain’s projected electricity needs for the summer ahead.
The Winter Outlook Report presents our view of security of supply for the electricity systems for the winter ahead.
Find out how we are working with stakeholders to develop a smart, flexible electricity system that with deliver services more efficiently and help us meet carbon targets.
The System Operability Framework (SOF) takes a holistic view of the changing energy landscape to assess the future operation of Britain's electricity networks.
RDPs look across the whole electricity system to unlock more network capacity, reduce constraints and open new revenue streams for market participants.
Experiencing a power cut? Find out what to do and who to contact.
We ensure that Great Britain has the essential energy it needs by making sure supply meets demand every second of every day.
As a new organisation we recognise our responsibility to deliver right from the start. The strategic priorities that we are driving towards can be found on this page.
We work with a whole range of experts, including engineers, academics and industry professionals so that we can safely deliver affordable and clean energy to customers. As we build a greener electricity system of the future our people know they are shaping the future for generations to come.
Want to know how we're regulated or how we're organised? Interested in our compliance statements and consultation responses? Our operational information page is where you can find all of this and more.
Innovation is critical to helping us meet the challenges of transitioning to a zero carbon future. As we sit at the very heart of the energy system, we play a central role in overcoming these challenges.
Read the story of how the we have decarbonised the electricity system to date, offering a blueprint to other countries around the world to help them reduce emissions.
All of our projects contribute towards our effort to make the grid ready to operate with 100% zero carbon electricity by 2025.
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A detailed description of national carbon intensity forecast methodology.
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