Approximately 7,200km of overhead line, 675 km of underground cable, 313 substations at 244 sites.
Asset Management is responsible for the design, policy and delivery of work for both the England and Wales electricity transmission system and the UK high pressure gas pipeline.
Substations, cables, overhead lines, compressor stations and gas pipelines - anything required for power transmission - these are just some of the assets that fall within our remit. Managing the transmission asset lifecycle, from identifying needs for new assets through to removing them from the system, our responsibilities include maintenance, fault repairs and managing national contracts for activities such as pylon painting and vegetation control. We constantly seek and apply innovative methods to ensure safe and fully supported plant operation and, to optimise total life costs and value, we're continually developing our asset management capabilities.
With a sharp focus on safe operation and high reliability, we're working closely with the Construction division to deliver the capital expenditure programme. And now, with a massive asset replacement programme underway - the biggest since the 1970s - we're more committed than ever before to driving efficiency, maximising our resources and, most importantly, developing our people to help us all achieve our goals.
Land and Development
The areas of rural and urban land touched by our electricity and gas networks are primarily owned by third party organisations and individuals. As land becomes subject to change and development we rely on these external parties to enable us to carry out our activities. Covering all rights, access and policy issues over land used for energy transmission, our department works to build relationships with stakeholders to inform the way we develop our networks.
Electricity Network Investment (ENI)
Approximately 7,400km of high pressure pipe and 26 compressor stations, connecting to 8 distribution networks and to third party independent systems.
Electricity Network Investment is responsible for developing and designing the best way to transmit energy in the future.
Some of the projects we are currently working on include a multi million pound asset replacement programme on a scale that's quite unprecedented since the 1960s. We're also building on our condition-based assessments for asset replacement prioritisation and risk management as well as working with the industry and manufacturers to standardise our designs and maximise maintenance efficiency.
So, whether we're formulating strategies for identifying future power system requirements, considering the impact of new technologies or updating our maintenance policies, you can be sure that no two days will ever be the same.
Find out more about Electricity Network Investment.
Maintenance Delivery Electricity (MDE)
MDE is responsible for the continued safe and reliable operation of the electricity transmission network through the efficient maintenance of substation and overhead line assets. We have responsibility for on-site safety management, and for the commissioning and operation of new equipment on the transmission system. We have a team over 1000 engineers and craftspeople dedicated to "keeping the lights on", working within in a high safety and environmentally conscious workplace.
As we continue to invest in playing our part in the delivery of clean, affordable energy for the long term - MDE are looking for engineering and craft recruits across England and Wales. We are proud to offer excellent accredited training programmes to develop our staff to meet highest safety and asset standards, and to enable staff to develop their career potential within National Grid.
Gas Network Investment (GNI)
The majority of current gas supplies come from the ever depleting UK continental shelf fields, so alternative supplies/sources of gas need to be found - increasing dependency on gas imports from other countries. The next six years will be an exciting time in the UK gas industry with the next phase of imported gas supplies coming on-line.
The GNI team make the decisions on how we develop our gas network, their first priority will always be the continued safe and secure operation of the gas transmission system whilst enabling and facilitating the changes to the new sources of gas entering the United Kingdom.
In order to develop the gas network we need a team of dedicated engineers to assess future gas requirements and develop projects to modify, reinforce and replace the gas pipelines and associated plant on the National Gas Transmission System.
Maintenance Delivery Gas (MDG)
MDG maintain the gas pipelines, compressors or gas turbines that ensure the continued supply of gas to home and industry throughout the UK. National Grid owns the national gas transmission system in Great Britain. This comprises approximately 7,600 kilometres of high pressure pipe and 26 compressor stations, connecting to eight distribution networks and to third party independent systems for onward transportation of gas to end consumers.
Our engineers manage the maintenance of our network, this could be anything from the maintenance of one of our 25MW Gas Turbine sets to the under-pressure drilling of a 42” diameter high-pressure gas pipeline to enable the connection of a new industrial supply.
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