National Grid is an international electricity and gas company and one of the largest investor-owned energy companies in the world. We play a vital role in delivering gas and electricity to many millions of people across Great Britain and northeastern US in an efficient, reliable and safe manner.
Transmission
We own and operate the electricity transmission network in England and Wales, the gas transmission network in Great Britain, and electricity transmission networks in the northeastern US. We are also responsible for the operation of the electricity transmission networks in Scotland.
- Over 20,800 kilometres of electrical overhead lines
- Over 800 kilometres of electrical underground cable
- 303 TWh electricity transmitted in the UK
- Nearly 7,400 kilometres of gas pipeline
- 1,134 TWh of gas throughput
Gas Distribution
We own and operate gas distribution systems in the UK and the northeastern US.
- Around 190,000 kilometres of gas pipe
- Over 14.3 million consumers
- Around 13,000 pressure reduction sites, including district governors
- Over 9.2 million cubic metres of gas storage capacity
Electricity Distribution and Generation
We supply electricity to approximately 3.4 million customers in the northeastern US through our distribution systems and own generation plants capable of generating 4.1 gigawatts.
- Over 116,000 kilometres of circuit
- 3.4 million customers
- 31 TWh of electricity delivered
- 680 substations
- 57 generation plants at 13 locations across Long Island
- Long Island Power Authority (LIPA) network serving 1.1 million customers over 21,000 kilometres of circuit and 170 substations, delivering 20 TWh of electricity
Non-regulated businesses
We own National Grid Metering, OnStream, National Grid Grain LNG and National Grid Property.
- Metering and meter reading services for around 20 million meters in the UK
- Property portfolio of around 800 sites comprising buildings and land of around 1,600 hectares
- Grain LNG planned total investment of approximately £830 million