ScotRail Shortlists Five Manufacturers for Fleet of Up to 106 New Electric and Battery-Electric Trains

Commuters across Scotland’s suburban rail network are moving closer to a daily reality of cleaner air, more reliable schedules, and fully accessible carriages. The long-standing reliance on aging diesel fleets is set to end as the infrastructure required to support modern, electrified transit takes shape across the Central Belt, Fife, and the Borders. For hundreds of thousands of daily passengers, this shift promises to fundamentally alter the comfort and consistency of regional travel, replacing decades-old rolling stock with modern transit architecture.[1]

To execute this transition, ScotRail has officially advanced its procurement process for a new fleet of up to 106 electric and battery-electric trains, moving the project to the Invitation to Negotiate (ITN) stage. The state-owned operator has shortlisted five major rolling stock manufacturers to bid on the contract, marking a critical milestone in the Scottish Government’s broader rail decarbonization strategy. The move to the ITN phase follows a rigorous pre-qualification period during which potential suppliers were assessed on their capacity to deliver a project of this scale.[1][2]

The five companies advancing to the ITN phase represent some of the largest rail engineering firms in the global market: Alstom Engineering and Services Limited, Construcciones y Auxiliar de Ferrocarriles S.A. (CAF), Hitachi Rail Limited, Siemens Mobility Limited, and Stadler Rail Schweiz AG. These manufacturers will now submit detailed technical and commercial proposals to design, build, and maintain the new suburban fleet. The competitive nature of this shortlist ensures that ScotRail can evaluate a diverse range of engineering solutions to meet the specific demands of Scotland's varied rail geography.[1][3]

The procurement framework outlines a guaranteed base order of 69 trains, with an option for ScotRail to purchase up to 37 additional units depending on future network demands and funding availability. The successful bidder will take on a comprehensive lifecycle contract. Beyond the initial design and manufacturing phases, the chosen firm will be responsible for the testing, certification, commissioning, and final delivery of the trains. Furthermore, the contract mandates long-term technical support and the provision of spare parts to ensure the fleet maintains high operational availability throughout its lifespan.[3]

Once the manufacturing and testing phases are complete, the new fleet is scheduled to enter passenger service in the early 2030s. The trains will be deployed across several key suburban corridors that currently rely heavily on legacy diesel units. These deployment zones include routes serving East Kilbride, Fife, and the Borders, alongside Glasgow’s inner suburban network. The new rolling stock will also operate on critical commuter services connecting Glasgow to Motherwell, Larkhall, Lanark, and Shotts, fundamentally upgrading the transit backbone of the region.[2]

For passengers, the transition from older diesel units to modern electric trains will bring tangible improvements to the daily commute. The new fleet specifications mandate a baseline of modern amenities that have become standard in contemporary rail travel. These include advanced air-conditioning systems to regulate cabin temperatures year-round, enhanced on-board connectivity, and highly reliable real-time passenger information displays. By upgrading these passenger-facing systems, ScotRail aims to make rail travel a more attractive and competitive alternative to private vehicle use across the suburban network.[1][3]

Accessibility and inclusive design are also central focuses of the procurement requirements. The new trains are required to feature reduced platform-to-train gaps, a critical engineering adjustment that makes boarding significantly easier and safer for passengers with mobility challenges, as well as those traveling with luggage or strollers. Additionally, the interior layouts must incorporate dedicated, family-friendly spaces and expanded, easily accessible capacity for bicycles and wheelchairs, reflecting a broader push toward active travel integration and universal design in public transit.[1]

From a systems perspective, the rolling stock upgrade is tightly coupled with Network Rail’s ongoing infrastructure enhancements across the country. The deployment of the new fleet is being carefully coordinated with the phased electrification of key routes. For example, the introduction of these trains aligns with projects like the £26.2 million scheme to electrify an eight-mile stretch of the Borders railway between Edinburgh and Tweedbank. This synchronized approach ensures that the new trains will have the necessary power infrastructure ready upon their arrival.[2][3]

The specific inclusion of battery-electric multiple units (BEMUs) in the procurement is a highly strategic decision for ScotRail's network architecture. Battery-electric trains allow the operator to run zero-emission services on routes where full overhead line electrification is either geographically impractical, cost-prohibitive, or not yet completed. By utilizing onboard battery storage to bridge un-electrified gaps in the network, ScotRail can accelerate the retirement of diesel trains and achieve its decarbonization targets without waiting for every mile of track to be wired.[1]

With the shortlist now finalized, the procurement process enters its most intensive and highly competitive phase. The selected manufacturers will spend the coming months refining their technical designs and commercial offerings to meet ScotRail's precise specifications. Ultimately, the contract will be awarded based on a rigorous evaluation of cost-efficiency, technical capability, and alignment with Scotland's long-term environmental and transit objectives. This decision will dictate the trajectory of the country's suburban rail network for decades, setting the stage for a cleaner, more efficient era of public transportation.[1][2]