The CAGE Hybrid Gas Engine

The CAGE Hybrid Gas Engine (HGE) is a novel generator technology developed and trialled on this construction site. It enables seamless switching between hydrogen, LPG, and (potentially) biomethane fuels, providing a flexible, low-emission alternative to traditional diesel generators.

The system is designed for easy integration with site battery storage units and can be optimised for different gas fuels at the flick of a switch. The HGE project was delivered in partnership with Calor, Speedy, and Imperial College London, and part-funded by the Department for Energy Security & Net Zero’s Red Diesel Replacement Programme.

Seven HGE generators were successfully deployed across multiple sites, powering welfare units and water management.

This is unique in its ability to operate on multiple low-carbon fuels, including hydrogen, LPG, and biomethane, within a single generator platform. The technology allows for rapid fuel switching, enabling staged adoption of net zero fuels as supply chains mature. The HGE system delivers ultra-low exhaust emissions, is scalable to different power requirements, and features advanced telemetry for real-time performance monitoring.

During trials, the HGE replaced inefficient diesel generators, achieving up to 70% CO2 reduction when using LPG and offering a practical pathway to zero-emission hydrogen operation.

To find out more, click the link below.