HS2 · Awarded contract
Awarded

Design, Build, and Maintenance of High Voltage Power Systems for HS2

Awarded 03 Feb 2025

View live tenders
Awarded03 Feb 2025
Value£328,237,076.84
SupplierSiemens Mobility Costain JV
AgencyHS2
RegionUnited Kingdom
CategoryInfrastructure
Expires in 22y 10mo24y 7mo term, 7% elapsed
Awarded 3 Feb 2025Expires 26 Aug 2049

About

HS2 awarded a contract to Siemens Mobility Costain JV for the design, build, testing, and commissioning of high voltage (HV) traction and non-traction power systems, including 33kV and 11kV networks and HV SCADA, for the HS2 Project.

The contract also covers ongoing maintenance activities.

The HV traction power system is a -25-0-25kV autotransformer system with a nominal fault current level of 15 kA, supplying power to the overhead catenary system.

The non-traction power systems provide a dedicated private network in tunnels and open route, connected to the distribution network operator.

The contractor is the Principal Contractor for railway systems compounds and will supply power to the HS2 rolling-stock maintenance depot at Washwood Heath, interfacing with the Network Integrated Control Centre.

Temporary construction supplies at Railway Systems Compounds are also included.

The contract value is AUD 328,237,076.84.

Similar open tenders12

Outline Designs for Neville Hill 195 Fleet Heavy Maintenance – Northern Trains LtdTransport & Logistics
23 Nov 2026
Heaton Reception Road Enhancement – Design and Construction for Reception Roads 1–4 and Siding ATransport & Logistics
20 Nov 2026
IEC 61850 SCADA Supply, Installation and Commissioning for 400/33kV Substation (J5) – UKAEAInfrastructure
06 Nov 2026
Inspection and Testing of High- and Low-Voltage Switchgear – Cardiff and Vale University Health Board (UHW, UHL, Barry Hospital, Woodland House, Genomics)Infrastructure
23 Nov 2026
Low Voltage Switchgear Upgrade at Substation 4, Wrexham Maelor HospitalInfrastructure
20 Nov 2026
Design Services for TRU Upgrades at Heaton Train Care Centre – Northern Trains LtdTransport & Logistics
09 Nov 2026
Supply of Two Road-Rail OHLE Maintenance Vehicles for South Yorkshire SupertramTransport & Logistics
30 Nov 2026
Inspection, Testing & Maintenance of Low-Voltage (LV) Switchgear – Cwm Taf Morgannwg University Health Board (Rhondda Cynon Taf & Merthyr Tydfil)Infrastructure
13 Nov 2026
Design and Installation of Integrated Smart Energy System (Solar, Battery, EV, Heat Pump) – g39, CardiffEnergy & Environment
09 Nov 2026
EPCS for Design, Procurement and Construction of Electric Drive Compressor Halls – South West Scotland Onshore SystemEnergy & Environment
20 Nov 2035
Replacement of Steam Boilers at MHRA Laboratories, South MimmsConstruction
20 Nov 2026
Electrical Maintenance and Installation Services for Tower Hamlets Council BuildingsConstruction
23 Nov 2026

Other similar contracts12

Award of HS2 Tunnel and Lineside Mechanical and Electrical Systems Contract to Costain LimitedInfrastructureCostain Limited
$408,545,165.87
Design, Supply, and Installation of Operational Telecommunications and Security Systems for HS2TelecommunicationsSiemens Mobility Limited
$189,515,306.04
Design, Supply, and Commissioning of Engineering Management System for HS2IT & SoftwareSiemens Mobility Limited
$35,094,386.9
Supply of Low Voltage Power Components for HS2 Phase One StationsInfrastructureABB LIMITED
$22,194,327
Award of HS2 Control, Command, Signalling and Traffic Management Systems Contract to Siemens Mobility LimitedTransport & LogisticsSiemens Mobility Limited
$179,430,310.53
Installation of New HV Supply and Substation for UK Research and InnovationInfrastructureSSE Enterprise Contracting
$206,087.1
Design, Supply, Installation, Testing and Commissioning of Overhead Catenary System for HS2 Phase 1InfrastructureCOLAS RAIL LIMITED
$206,910,125.2
Supervision of Construction of Electrical Supply Systems for EV Charging at Motorway Service AreasInfrastructureCostain
$87,201.97
Design, Build, and Interim Operation of Third-Party Telecommunications Systems for HS2TelecommunicationsHitachi Rail GTS UK Limited and Telent Technology Services Limit
$80,540,408.66
Procurement Support for HS2 Railway Systems ContractsConsultancy & LegalPerfect Circle JV Ltd
$4,952,029
Supply of Uninterruptible Power Supply & Central Battery Systems for HS2 Phase One StationsInfrastructureABB Limited
$66,465,630
Design and Installation of Two Traction Substations for Manchester MetrolinkInfrastructurePower Supply Projects Ltd
$2,878,677

Unlock the full platform.

7 days free, then £36/GBP per month. Cancel anytime.

What you get

Find

Find infrastructure tenders in United Kingdom in one place.

We monitor central, devolved and local government portals in near real time and update the feed as tenders are published, so you check one place instead of many.

Search by keyword, or describe your workType a keyword, or switch to AI search and say what your business does.
Narrow it downFilter by category, region and area, or view open tenders on a map.

Alerts

Open tenders like this contract, sent to you.

Tell us what you are looking for and we email you when a matching tender is published.

Set it up your wayUse keywords, a description of your work, a location or a distance from a postcode. Up to 10 alerts.
Instant or dailyGet an email when a match is published, or one summary a day.

Assess

Size up a tender in minutes.

Before you open a single document, get the requirements, a likely value and who you would be up against.

Requirements from the documentsWho can bid, mandatory criteria, how it is scored, insurance and key dates, each with its source.
Value and competitionAn estimated value from similar awarded contracts, and the suppliers most likely to bid.

Market

Follow Siemens Mobility Costain JV and get alerts when they win again.

Awarded contracts with the supplier and the value, so you can check prices, spot competitors and find work that is coming back to tender.

Supplier and buyer profilesWhat each one has won or awarded, who they work with, and how that is changing.
Contracts ending soonTerms that finish in the next 12 months, which often go back out to tender.

Pipeline

Track your bids from interested to won.

Save a tender in one click and move it through each stage as you work on it.

Work as a teamInvite colleagues so you work from the same list.
Take it with youExport tenders and matches to CSV.

GovBot

Ask a question in plain English.

Find tenders, look up a supplier, or check who won a contract. Just type what you need.

Get started

Get infrastructure tenders in United Kingdom by email.

Find the tender, size it up and track the bid, in one place.

7 days free, then £36/GBP per month

Have a question? message us →

7 Day Free Trial

The Gov procurement market in your hands. Cancel anytime.

Save up to 30%
Pro
For solo operators
£36/ month
Billed monthly
  • Live feed of gov tenders & contracts
  • AI-matched tender recommendations
  • Full search, filters, and watchlists
  • 1 user account
Team
For growing teams
£119/ month
Billed monthly
  • Everything in Pro
  • Up to 10 team members
  • Shared watchlists & alerts
  • Priority support
Enterprise
For larger organisations
Custom
Tailored to your team
  • Everything in Team
  • Unlimited seats
  • Dedicated account manager
  • Custom integrations & SSO

1400+ businesses have joined GovMarket

IBMKPMGEYRSMBechtelFreyssinet

You're In — Free Trial Activated

You now have full access to GovMarket Premium for 7 days. You’ll be charged at the end of the trial unless you cancel.

  • Tell Us What You Do — We'll surface the tenders that are most relevant to your business.