Reimagining the past to power the future. Delivering first-of-its-kind fleet charging integration. At the FirstBus Minehead Depot, we combined Siemens and Heliox charging technologies within a single operational environment, providing a fully integrated, high-performance solution for electric bus infrastructure.
Delivering the UK’s first combined Siemens and Heliox charging installation
At FirstBus’ Minehead Depot, EV infrastructure is being advanced to support the transition of heavy vehicle fleets, bringing together two leading charging technologies within a single operational environment.
As Principal Contractor, we delivered the UK’s first installation integrating both Siemens and Heliox charging systems, following Siemens’ acquisition of Heliox. This milestone project represents a significant moment in the evolution of EV charging, combining Siemens’ global engineering capability with Heliox’s specialist expertise in high-power bus charging systems.
Being selected to deliver this first-of-its-kind integration reflects strong industry confidence in our technical expertise and our ability to deploy emerging, high-performance technologies within live operational environments. It positions us at the forefront of complex EV charging integration for heavy vehicle fleets, setting a new benchmark for how next-generation infrastructure is delivered.
From depot infrastructure to electrified fleet operations
The transition to electric bus operations requires more than charger installation, it demands a fully coordinated electrical and operational environment.
At Minehead, we led the design and installation of EV charging infrastructure, including high-powered DC chargers, LV distribution systems and associated containment. This was delivered alongside supporting site works, including lighting, access control, CCTV, and updated depot layout and line marking to enable safe and efficient vehicle movement.
Working within an operational depot environment, the project required careful planning and sequencing to ensure minimal disruption while enabling a smooth transition to electrified operations.
Delivering complex technology integration
A defining aspect of the project was the integration of Siemens and Heliox charging technologies into a single, coordinated system. Following the alignment of these two globally recognised platforms, the project required detailed technical coordination across equipment, controls and infrastructure to ensure full compatibility, performance and compliance. Both Siemens and Heliox are recognised for engineering excellence, reliability and innovation, and entrusted us to install and integrate their newly combined platform within a live fleet environment.
However our role extended beyond installation. We worked closely with stakeholders to ensure that system design, electrical infrastructure and operational requirements were fully aligned, creating a seamless and future-ready charging solution.
This approach not only establishes a blueprint for future deployments, but demonstrates how emerging technologies can be successfully integrated to support large-scale fleet electrification.
Coordinated delivery from design through to commissioning
Our role extended across the full project lifecycle, from electrical design and verification through to installation, commissioning and client handover. This included the installation of feeder pillar panels, cabling infrastructure and charger connections, alongside coordination with third-party HV works to ensure seamless integration into the wider power network.
Delivered within a 12-week programme, the project required a structured and disciplined approach to programme management, safety and quality, ensuring all systems were fully tested, commissioned and operationally ready.
A platform for fleet electrification
FirstBus’ Minehead depot demonstrates how advanced EV infrastructure can be deployed effectively to support the electrification of public transport fleets. By combining engineering expertise, multi-technology integration and coordinated delivery, we have created a scalable and future-ready charging environment, capable of supporting the continued transition to low-emission transport.
As the first UK project to integrate Siemens and Heliox charging technologies, it sets a new standard for complex EV infrastructure, reinforcing our role in delivering the next generation of fleet charging solutions.
