The Project team will make sure the hydrogen is blended with natural gas reliably, at a consistent level and maintains a steady flow. This is important for HyDeploy.
The equipment to mix and inject the blend into the grid will be designed and supplied by one of two industry specialists who have built some of the 70 biomethane grid injection units in operation in the UK today, and who have the necessary expertise in gas handling.
This equipment will be designed to ensure:
- it never exceeds the permitted blend rate and mixes the two gases effectively,
- it delivers gas over the range of flows experienced on the Keele network,
- that the blended gas is within specification even when the quality of the underlying natural gas varies as it does today,
- it maintains gas delivery to customers under all circumstances,
- the gas has the necessary ‘smell’ for detection; and
- the integrated system has the necessary control and Safety Instrument Levels required for this kind of processing equipment.
The detailed design, hazard and operational review of the equipment will form part of the information supplied in the safety case. Only if the HSE is satisfied that it is safe, will permission be granted to proceed to the live trial.