GB Railfreight Tests First Six Class 99 Locomotives UK

LONDON, UK – GB Railfreight (GBRf) has commenced the operational integration of its new Class 99 locomotive fleet, taking delivery of the first six units from manufacturer Stadler. The locomotives received an interim declaration of compatibility from Network Rail, permitting their use on the UK network for activities like driver training. The full fleet of 30 locomotives was originally ordered in 2022 by leasing company Beacon Rail for use by GBRf.

What Are the Technical Specifications?

The Stadler Class 99 is a bimodal locomotive developed specifically for the British loading gauge and network requirements. It can draw power from 25kV AC overhead lines or operate independently using an onboard Stage V-compliant diesel engine on non-electrified sections of the network. This dual-mode capability is designed to eliminate the need for traction changes at the boundaries of electrified infrastructure, thereby reducing journey times and operational complexity. Key technical specifications, such as the power output in electric and diesel modes, were not disclosed in the announcement.

Key Technical Data

Where Does This Technology Stand in the Market?

The Class 99 enters a UK market increasingly focused on multi-mode traction to overcome the limitations of a partially electrified network. Its direct competitors include other Stadler products already in service or on order for the UK. For instance, Rail Operations Group has ordered the Class 93, a tri-mode locomotive featuring a 4 MW electric motor, a 900 kW diesel engine, and a battery module for last-mile movements. In contrast, Direct Rail Services has operated the Stadler-built Class 88 since 2017, a bimodal design that combines 4 MW electric power with a 708 kW diesel engine for freight and passenger charter services. The Class 99’s positioning with a modern Stage V engine highlights a strategic emphasis on emissions compliance for its diesel operations. (Source: Stadler Rail, 2023).

Editor’s Analysis

GBRf’s investment in 30 advanced bimodal locomotives occurs against a challenging economic backdrop, with the UK rail freight market projected to shrink by 5.4% in 2025 following a similar decline in 2024. This counter-cyclical investment underscores a long-term strategy to gain market share through superior operational efficiency and sustainability credentials. By offering a one-seat ride that avoids time-consuming locomotive swaps, GBRf can improve service reliability and reduce costs, a compelling proposition for customers in a competitive logistics market. (Source: European rail freight market analysis, 2024).

FAQ

Q: How many Class 99 locomotives is GBRf acquiring?
A: GB Railfreight is acquiring a total fleet of 30 Class 99 locomotives. The acquisition is facilitated through a contract between manufacturer Stadler and the leasing company Beacon Rail, which was first signed in 2022.

Q: What is the main advantage of a bimodal locomotive like the Class 99?
A: The primary advantage is its operational flexibility, allowing it to run on electrified routes using overhead power and on non-electrified lines with its diesel engine. This eliminates the need to change locomotives mid-journey, reducing transit times and improving overall network efficiency.

Q: What is the timeline for the full fleet entering service?
A: The operator plans to introduce the first units into commercial service this summer after completing driver training. The original 2022 contract framework noted the first deliveries were scheduled for June 2025, but GBRf is now moving forward with the initial six locomotives.