During September 2020, it was announced that 314209, which was converted into a hydrogen train, would appear at the COP26 Climate Change Summit, held in Glasgow during 2021. It is believed that the unit shall be operating special demonstration services for the benefit of visiting delegates and to show the potential of hydrogen traction. The completion of the hydrogen demonstrator ahead of this high-profile event has been viewed as a particularly challenging timeframe for an experimental initiative. While the converted Class 314 will have a maximum storage capacity of 80kg of hydrogen, pressurised at 350 bar, deemed to be sufficient for demonstration purposes, this would need to be expanded greatly expanded for most regular passenger services; the conversion team believe that such modifications are realistic via additional rectangular tanks housed within the coaches, as roof-mounted tanks aren't viable due to the UK's restrictive loading gauge.