Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, how many people in the Health and Safety Executive are evaluating the safety case for blending hydrogen in the transmission network; and what the Health and Safety Executive's planned timetable is for a decision.

The Health and Safety Executive (HSE) has a strategic objective to enable industry to innovate safely to prevent major incidents, supporting the move towards Net Zero. As part of this objective HSE is working to review and understand key technologies, such as hydrogen and carbon capture and storage.

HSE is currently reviewing the evidence on safety for the potential use of 100% hydrogen as an alternative to natural gas. HSE understands that the full evidence base for blending hydrogen in the transmission network is not due to be completed until December 2024. HSE is working with the Department for Energy Security and Net Zero to ensure HSE's resources are appropriately deployed to support Government’s net zero priorities.