Gas system in transition: security of supply

This consultation is inviting views and supporting evidence on our assessment of the priorities for gas security of supply during the transition, and the associated challenges facing the gas sector. It sets out a range of proposed policy actions that we are considering in order to protect our gas security in the years ahead. We committed to a programme of public engagement on the gas system’s transition in the June 2025 update to market . This consultation is the first step in this programme of work. This represents a significant milestone in our commitment to shape a gas system that provides energy security for decades to come. It covers: our understanding of the changing patterns of gas supply and demand and how we expect these to evolve during the energy transition, including the continuing need for peak-day capacity our three-point plan for gas security of supply, which includes: a