About us

National Grid Electricity Transmission is the owner of the high-voltage electricity transmission network in England and Wales. We’re network specialists, managing not only today’s highly complex network, but also enabling the electricity system of tomorrow. 

Our work

Our work involves building and maintaining the electricity transmission network – safely, reliably and efficiently. We connect sources of electricity generation to the network and transport it onwards to the distribution system, so electricity can reach homes and businesses. This requires a unique mixture of skills, experience and planned investment.

We’re committed to safeguarding our global environment for future generations and providing all our customers with the highest standards of service.

This video shows the work we're doing and how we're supporting our transmission customers.

Our role in the industry

We hold a role right at the heart of the energy industry as the owner of the high-voltage electricity transmission network in England and Wales.  

The transmission network is like the motorways and dual carriageways of the electricity system, while the distribution system is like the smaller roads that deliver the electricity to homes and businesses.  

The traditional model of the industry 

Traditionally, electricity has been generated through sources that include fossil fuel and nuclear power stations, or renewable sources such as wind and solar. Those generation sources connect to the transmission network, which transports the electricity to the distribution system. It’s then delivered by the distribution system to consumers at a voltage they can use.  

How the traditional model is evolving 

Today, the traditional model of the energy sector is evolving and adapting to unprecedented transformation, in which we are moving from high to low carbon. Coal plants are closing down, while renewable sources of generation are increasing significantly, together with technologies such as battery storage.  

Smaller-scale sources of generation such as wind and solar are also connecting directly to the distribution network, creating a more complex system to manage. And consumers are using new technologies to manage their electricity demand – increasing energy efficiency in homes and businesses.  

There’s now a greater diversity of supply and flexible demand than ever before. The electricity transmission network has a crucial part to play in the future energy mix, connecting new sources of energy to the people who use them.

Digitalisation strategy

Significant change is underway in the UK energy system, often described by the three key trends of decarbonisation, decentralisation, and digitalisation. The UK’s commitment this year to net zero greenhouse gas emissions by 2050 has focused minds on the task in hand, and at National Grid, we see net zero as both a huge challenge and opportunity.

Digital – the transformation of physical processes to virtual – is a critical part of the pathway to net zero. It provides an opportunity for the energy sector to bring about cost savings for consumers, improve customer experience, enable greater whole system coordination and transparency, and accelerate the development and deployment of innovative technologies.

Our stakeholders have increasingly told us how important Digital is to them, and work carried out across the industry has helped to crystallise and prioritise what needs to get done. Our Digitalisation Strategy outlines where we are today, our strategy for the future and our priorities for RIIO T2. It also invites stakeholders to engage with us on our approach to digitalisation.

Download digitalisation strategy

Network in numbers

Learn about the scale of our assets and the diversity of our workforce. Together, they provide a safe, efficient and reliable network for our customers.

Find out more

Breaking down your bill

Learn about the different elements of your electricity bill and how much of it goes towards maintaining and running the electricity transmission network.

Find out more

We are changing

The energy industry is undergoing huge change. Discover how we’re adapting, so we can provide a better service to our customers and more value for consumers.

Find out more