National Grid Electricity Transmission
We own and maintain the high-voltage electricity transmission network in England and Wales. Every time a phone is plugged in, or a switch is turned on, we’ve played a part, connecting you to the electricity you need.
We take electricity generated from windfarms and other power sources and transport it through our network of pylons, overhead lines, cables, and substations. It then goes on to separate lower voltage local distribution networks, which connect directly to homes and businesses.
We're investing for the future, connecting more and more low carbon electricity to our network - it’s a crucial role and pivotal in turning the UK’s net zero ambitions into reality.

RIIO-T3 business plan (2026-2031)
Our Business plan for RIIO-T3 sets out an ambitious framework to deliver up to £35bn investment, driving the most significant step forward in the UK’s transmission network for a generation.
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The Great Grid Upgrade
What's a windy day got to do with a good hair day? Find out more about The Great Grid Upgrade - the largest overhaul of the UK's electricity grid in generations.
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