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What we do
What we do
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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Strategic Planning

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

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.

Systems Operations

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.

Connections Explained

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.

Resilience & Emergency Management

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.

Energy Insights

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.

Energy Markets

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.

Data & AI

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.

Helping our customers get ready for NESO
Energy 101
Energy 101
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.

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Net zero explained

Confused about carbon? Need knowledge on net zero? Interested in EVs? You’ve come to the right place.

Great Britain’s Monthly Energy Stats

Ever wonder how much gas and electricity we use in Great Britain? View our monthly insights into which generation sources provide Great Britain's electricity and learn how much we use each month.

Electricity explained

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 explained

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 explained

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.

Balancing the Grid - Interactive game

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.
Industry information
Industry information
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.

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Balancing costs

Balancing costs are those costs associated with (A) the Balancing Mechanism, (B) balancing services, and (C) energy trading.

Balancing services

We procure services to balance demand and supply and to ensure the security and quality of electricity supply across Britain's transmission system.

Charging

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.

Codes

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.

Connections

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).

Industry data and reports

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.

Network access planning

Our Network Access Planning engineers are responsible for assessing, co-ordinating and sanctioning the planned release of assets from the National Electricity Transmission System.

Connections Reform
News and events

News and events

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.

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Publications
Publications
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.

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View all of our publications

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.

Beyond 2030

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)

Future Energy Scenarios (FES) represent a range of different, credible ways to decarbonise our energy system as we strive towards the 2050 target.

Transitional Centralised Strategic Network Plan (tCSNP)

We have been enhancing our approach to planning the GB electricity transmission network through a series of transitional CSNPs.

Clean Power 2030

Achieving clean power by 2030 whilst keeping the system secure and affordable for consumers would be a world-leading achievement.

Electricity Ten Year Statement (ETYS)

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.

GB 36 Bus electricity transmission network model

A 36-bus equivalent network representing the National Electricity Transmission System of Great Britain modelled in DIgSILENT PowerFactory.

Markets Roadmap

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

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.

Winter Outlook

The Winter Outlook Report presents our view of security of supply for the electricity systems for the winter ahead.

Whole electricity system

The journey to creating an energy system fit for the future wouldn’t be possible without close collaboration with industry partners to help the transition.

System Operability Framework (SOF)

The System Operability Framework (SOF) takes a holistic view of the changing energy landscape to assess the future operation of Britain's electricity networks.

Regional Development Programmes

RDPs look across the whole electricity system to unlock more network capacity, reduce constraints and open new revenue streams for market participants.
Energy outages

Energy outages

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

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Careers

Careers

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About
About
We ensure that Great Britain has the essential energy it needs by making sure supply meets demand every second of every day.

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Strategic priorities

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.

Our people

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.

A whole system challenge

Operational information

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

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.

Our progress towards net zero

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.

Our projects

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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1. Calendar
Markets Forum Q&A

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Meetings

Markets Forum Q&A

28 April 2025 - 3pm to 4pm

Energy Markets

/ Market strategy and roadmap

Join our live Q&A webinar on 28 April at 3pm where the NESO Markets Team will be available to answer your questions. We’ll share a pre read of our latest updates with you by the 21 April, which will cover topics such as the Markets Roadmap, Routes to Market and REMA.

If you have any questions ahead of the webinar, you can submit them on Sli.do using the code #MFAPR25. Alternatively, you can email your questions to us here - box.marketsengagement@nationalenergyso.com

Register to attend the live Q&A session below.

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Online

Add to Calendar private 2025-04-28 15:00:00 2025-04-28 16:00:00 Europe/London Markets Forum Q&A Join our live Q&A webinar on 28 April at 3pm where the NESO Markets Team will be available to answer your questions. We’ll share a pre read of our latest updates with you by the 21 April, which will cover topics such as the Markets Roadmap, Routes to Market and REMA.If you have any questions ahead of the webinar, you can submit them on Sli.do using the code #MFAPR25. Alternatively, you can email your questions to us here - box.marketsengagement@nationalenergyso.com  Register to attend the live Q&A session below.   National Energy System Operator noreply@nationalgrideso.com

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