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MAIN NAVIGATION

 * What we do
   What we do
   
   We ensure that Great Britain has the essential energy it needs by making sure
   supply meets demand every second of every day.
   
   Back What we do View
    * 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.
   
    * Our strategy
      
      Find out more about our strategy, our RIIO business plan and annual
      reports and look towards our emerging future role at the heart of a new
      Future System Operator (FSO).
   
    * Becoming the National Energy System Operator (NESO)
      
      Unparalleled change is needed to deliver clean, secure, and affordable
      energy for the country. NESO is being set up as an independent
      organisation with a view across the whole system to lead this change.
   
    * How we operate
      
      We move high voltage electricity from where it’s generated, such as a wind
      farm, through the energy system. But who else is part of the British
      electricity system?
   
    * Electricity National Control Centre
      
      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.
   
    * Electricity 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. 
   
    * Balancing the Grid 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.

 * Electricity explained
   Electricity explained
   
   We’re experts in all things electricity – 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.
   
   Back Electricity explained View
    * Electricity and me
      
      We have an ambition to run the grid zero carbon by 2025. And anything you
      can do to adopt greener habits will help. Become a megawatt master – in
      this section of Electricity Explained. 
   
    * How is electricity generated?
      
      The way electricity is generated is changing as we head towards a greener
      future.
   
    * How does electricity move around?
      
      Do you know your DNOs from your ESOs? And how does electricity actually
      get to your home, around the country and overseas? 
   
    * How do we balance the grid?
      
      Inertia, frequency, voltage, thermal, constraints… these are just a few of
      the factors that go into the highly complex process of balancing the
      grid. 
   
    * Power cut in your area?
      
      Experiencing a power cut? Find out what to do and who to contact.
   
    * How is electricity priced?
      
      There are three main models that determine the price of electricity. What
      do we use in GB and around the world?
   
    * Monthly Insights
      
      Ever wonder how much electricity is generated and used in Great Britain? 

 * Future energy
   Future energy
   
   Explore how renewables, EVs and more are part of the transition to a
   zero-carbon system that will take us to net zero 2050.
   
   Back Future energy View
    * Beyond 2030
      
      The Beyond 2030 report builds on top of the Holistic Network Design and
      makes a set of network recommendations throughout the 2030s. 
   
    * 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. 
   
    * 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.
   
    * 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.
   
    * Projects
      
      All of our projects contribute towards our effort to make the grid ready
      to operate with 100% zero carbon electricity by 2025.
   
    * Virtual Energy System
      
      We have launched an ambitious, industry-wide mission to digitise our
      energy system. We call it the Virtual Energy System.

 * Industry information
   Industry information
   
   Whether you’re a balancing provider looking to supply services to us, trying
   to find the latest Grid Code, or looking for the latest TNUOS charging
   guidance, you can find all the information you need in our Industry
   Information hub. 
   
   Back Industry information View
    * 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
      
    * 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.

 * 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. 
   
   Back News and events View
   
 * Research and publications
   Research and 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 the UK.
   
   Back Research and publications View
    * Publications library
      
    * Network Options Assessment (NOA)
      
      The Network Option Assessment (NOA) provides our recommendation for which
      network reinforcement projects should receive investment and when. 
   
    * 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
      
      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.
   
    * 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. 




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ESO

We have released Beyond 2030, the report builds on top of the Holistic Network
Design and makes a set of network recommendations throughout the 2030s.
Beyond 2030


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

Image

NATIONAL ENERGY SYSTEM OPERATOR (NESO)

We’re becoming the National Energy System Operator (NESO), a new, independent,
public corporation that will be responsible for planning Britain’s electricity
and gas networks and operating the electricity system. 

Read more about NESO
Image

MARKETS ROADMAP 2024

Read our Markets Roadmap report to learn how, and why, we're reforming our
balancing services markets in anticipation of the impacts of decarbonisation and
transformation of the system.

Read the Markets Roadmap 2024
Image

DECARBONISE GREAT BRITAIN TOGETHER

If you missed our webinars explaining our new responsibilities as the National
Energy System Operator (NESO), you can watch recordings to learn how we can work
together to deliver a net zero energy system that balances sustainability with
affordability and security.

Watch here

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.

Power cut in your area?



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

Image

GREAT BRITAIN'S MONTHLY ELECTRICITY STATS

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

See 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
and you can follow the electricity mix live in our carbon intensity app –
available on Google Play Store and The App Store.

Discover last months electricity stats


NEWS

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

Category Article CategoryBalancing servicesData
PortalChargingCodesConnectionsControl room operationsElectricity ExplainedFuture
energyFuture Network DevelopmentNetwork access planningOur strategy



ESO PUBLISHES “BEYOND 2030” – A £58BN INVESTMENT PLAN IN THE FUTURE OF BRITAIN’S
ENERGY SYSTEM

19 Mar 2024 - 3 minute read

ESO publishes investment plan for future energy system: The Electricity System
Operator (ESO) has published today a report called "Beyond 2030", which proposes
a £58 billion investment in the electricity grid to meet the growing and
decarbonising demand for electricity in Great Britain by 2035.

Future Network Development


DR PAUL GOLBY (CBE, FRENG) ANNOUNCED AS PREFERRED CANDIDATE TO CHAIR NESO

15 Mar 2024 - 1 minute read

The preferred candidate to Chair the National Energy System Operator (NESO) has
been announced by the Department for Energy Security & Net Zero as Dr Paul
Golby.

Our strategy


NEW BALANCING RESERVE SERVICE GOES LIVE TO REDUCE BALANCING COSTS AND IMPROVE
SYSTEM SECURITY

14 Mar 2024 - 2 minute read

The first Balancing Reserve (BR) auction for day ahead capacity ran successfully
on our Enduring Auction Capability (EAC) platform, also utilising the
capabilities of our Single Markets Platform (SMP).

Balancing services

PAGINATION

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