At National Grid, we manage the flow, security, and quality of electricity to Britain’s homes and businesses – managing the network on a real-time basis, making sure supply and demand are perfectly matched from one second to the next. 

Industrial electricity connections

All aspects of the contracts for the connection to and use of the National Electricity Transmission System (NETS).

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Balancing services

Find out how we keep the electricity transmission system balanced, and about tendering for balancing services.

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Capacity (EMR and CMN)

Electricity capacity regulations and allocations, including EMR and CMN.

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Charges that users of the electricity transmission system have to pay, how they are calculated and what changes are currently being considered by the industry.

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The framework and rules for operating the British electricity transmission network. Each of the codes focuses on a different area of the industry.

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Market, operations, and data

Data and support for users of the National Electricity Transmission System (NETS) including the latest operational data, forum, and more.

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Electricity system operator incentives

Designed to deliver financial benefits to the industry and consumers by reducing the cost and minimising the risks of balancing the system.

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How we create value

The electricity transmission network has a central role to play in the future energy mix. In a fast-changing energy landscape, we’re working to meet ambitious low carbon energy targets, connect new sources of energy to the people who use them, and find innovative ways to enable the decarbonisation of heat and transport.

At the same time, we’re always looking to create value for consumers and our customers. In our Electricity Transmission business, we have more than 2,000 professionals who are developing, optimising and improving our energy infrastructure every day. Lean, efficient asset design and management, versatility, innovation, continually improving our levels of service, and removing costs from our business all play an important part in the way we work.

Efficient investment helps us maintain network reliability above 99.9999%. And we work hard to reduce the impact of our electricity infrastructure on communities and our precious landscapes – this includes involving local communities in our decision-making, when we build new assets, or refurbish existing ones.

Over the next decade, we expect to step up our work to modernise our energy infrastructure – and at highly competitive prices – so we can improve the environment and prosperity of our country. Continuing to listen our customers, so we can understand and meet their needs, will play an important part in how we achieve this.

Who supplies electricity

We do not sell electricity. Distribution network operators (DNOs) own and operate the distribution network of towers and cables that bring electricity from our national transmission network to homes and businesses. They don’t sell electricity to consumers.

The electricity in your home or business is supplied to you by an electricity supplier.  Only suppliers licensed by Ofgem can sell you electricity. You can find more information about who supplies electricity in your area from the Energy Networks Association website.

Advice for electricity consumers

Power cuts

If you have a power cut, you should contact your local electricity network operator. To make this easier, please telephone 105 and you will be put through to your local network operator. To find out more, go to the Power Cut 105 website.

During times of severe weather, please visit the Energy Networks Association website for detailed advice.

Electricity safety and emergencies

If you spot a potential hazard on or near an overhead electricity line:

  • Do not approach any hazard, even at ground level

  • Keep as far away as possible.

Then follow these steps:

  • Warn anyone in the vicinity to evacuate the area.
  • Call our 24-hour Electricity Emergency Service on 0800 40 40 90.  Do not use this phone number for any other purpose.  
  • Give your name and contact phone number.
  • Explain the nature of the issue/hazard.
  • Give as much information as possible so that we can identify the geographic location, such as town/village, numbers of nearby roads, postcode and (only if it can be observed without putting you or others in danger) the tower number of an adjacent pylon.
  • Await further contact from a National Grid engineer.