As part of our £1.2 billion East Coast Upgrade, we’re improving the power supply on the East Coast Main Line to enable faster, quieter and more environmentally friendly electric trains to run. The upgrade paves the way for the introduction of new trains, such as LNER’s Azuma and Hull Trains’ Paragon fleets.
Passengers will benefit from:
- More seats
- Additional services
- Improved performance and reliability
The upgrade is being carried out in two phases:
- Phase 1 –between London and Doncaster
- Phase 2 –between Doncaster and Edinburgh
Phase 1 of the project began in 2014 and was completed in 2020.
The following upgrades have already been completed:
- installation of 23 substations along the route
- laying 600km of new cabling
- construction of foundations and structures to support overhead line equipment
- new 400kv connection to the main National Grid
Further upgrades are planned to increase resilience and reliability along the route. These upgrades include additional sub-stations, track based cabinets and feeder stations
The Power Supply Upgrade powered forward into its second phase in September 2020, when a £216.2m contract was awarded to the Rail Electrification Alliance. Phase 2 of the project involves the installation of feeder and substations along the route, capacity upgrades, new 132kv connection at Hambleton junction and upgrades to existing power supply connections.
This phase will deliver upgraded power to the East Coast Main Line railway between Doncaster and Edinburgh and will include:
- Installing 27 new traction substations
- Installing 1000 km new cabling including feeder cables and telecoms cabling
- Construction of supporting foundations and structures for substations and to support overhead line equipment
- Introduction of 2 New Static Frequency Converter Compounds at 132kV supply connection points
Case study – £0.5bn saved for power supply upgrade
On the East Coast Main Line, the old diesel fleet of trains is being replaced with a bigger fleet of new electric trains. They’ll be longer, cleaner, greener and much more frequent. All these additional electric trains mean we need to boost the power supply to run them. By using innovative, new technology called “Static Frequency Convertors” instead of traditional methods will save over £500m throughout the course of the project.
Ordinarily, we’d have to go where National Grid supplies are available, setting up a whole new power supply system and carry the power over long distances. We’d then have to close the railway; installing pylons, digging up the ground, laying cables – all very expensive to install and disruptive for passengers.
Instead, Static Frequency Convertors sit separately from the railway and “plug-in” to existing power cables. They take the local electricity supply and amplify, clean, and optimise it, providing the ideal power supply for trains. And they do this without disturbing the local power supply.
As well as saving £0.5bn, by retiring the diesel fleet of trains, this project is also saving around 154 tonnes of carbon per day – that’s the equivalent of planting over 2300 trees every day.
The Rail Electrification Alliance
Both phases of the project are being delivered by the Rail Electrification (REAL) Alliance which compromises of:
- Network Rail
- Siemens – traction power design, supply, installation and SCADA (Supervisory Control and Data Acquisition)
- J Murphy and Sons – civil works and structures, cable and cable routes
- VolkerRail – overhead line equipment works and signalling works
- TSP Projects – professional consultancy and design support
- Jacobs – professional consultancy and design support