Home Company News HS2 start procurement of high voltage power supply systems

HS2 start procurement of high voltage power supply systems

The search has started for specialist contractors to deliver the high voltage power supply systems to HS2.

The winner of this latest rail systems contract – worth an estimated £523m – will be responsible for the design as well as manufacture, supply, installation, testing, commissioning and maintenance of the HV power supply systems.

Approximately 50 traction sub-stations will be built alongside the line between London and Crewe to deliver power from the National Grid to the trains. The contractor will also deliver a dedicated HV non-traction power network that will provide power to stations, shafts, portals, depots and railway systems along the route.

Once operational, HS2 will be one of the lowest carbon ways to travel, with just 8g of carbon emitted per passenger kilometre – in comparison to 67g by car and 170g by air. Electricity will come from the national grid, so as the UK’s power supply transitions to entirely renewable sources, journeys on HS2 will become carbon neutral.

Hs2 procurement and commercial director David Poole said: “The high voltage power supply is a vital part of the HS2 project and the successful bidder will play a crucial role in keeping our network running safely and reliably. I look forward to the HS2 team working with the suppliers who come forward and together ensuring that we deliver best quality and value for the project.”

The HV Power Systems contract will be a single stage procurement, with the successful bidder delivering two separate contracts covering Design & Build and Maintenance services within Phase One and Phase 2a – from London to Crewe, where HS2 services will join the existing west coast main line.

The traction power sub-stations are located at multidisciplinary Railway Systems Compounds which are situated in the open route section of the line. The contractor will assume the role of Principal Contractor within these compounds. The successful bidder will be expected to work closely with HS2’s other rail systems suppliers to ensure integration of its design and throughout construction, testing and commissioning.

A shortlist is expected to be announced next year, with contract award in 2022.

Nigel Wordsworth BSc(Hons) MCIJhttp://therailengineer.com

SPECIALIST AREAS Rolling stock, mechanical equipment, project reports, executive interviews


Nigel Wordsworth graduated with an honours degree in Mechanical Engineering from Nottingham University, after which he joined the American aerospace and industrial fastener group SPS Technologies. After a short time at the research laboratories in Pennsylvania, USA, Nigel became responsible for applications engineering to industry in the UK and Western Europe. At this time he advised on various engineering projects, from Formula 1 to machine tools, including a particularly problematic area of bogie design for the HST.

A move to the power generation and offshore oil supply sector followed as Nigel became director of Entwistle-Sandiacre, a subsidiary of the Australian-owned group Aurora plc. At the same time, Nigel spent ten years as a Technical Commissioner with the RAC Motor Sports Association, responsible for drafting and enforcing technical regulations for national and international motor racing series.

Joining Rail Engineer in 2008, Nigel’s first assignment was a report on new three-dimensional mobile mapping and surveying equipment, swiftly followed by a look at vegetation control machinery. He continues to write on a variety of topics for most issues.

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