Gas emergency Smell gas? Call the National Gas Emergency Service on 0800 111 999. Electricity emergency Power cut? Call the national response number on 105. Concerned about the safety of a meter or underground electricity cables? Call 0333 800 2016, available 24/7. Priority service register Getting priority treatment to those who need it Regulatory information How we operate as a regulated Independent Gas Transporter (IGT and Independent Network Distribution Operator (IDNO). Be Winter Ready We're here to help you this winter