1. Review Group 0175: DM Supply Point Emergency Arrangements
National Grid NTS
18 December 2007

2. Impact of more DM load
From NTS perspective, greater DM participation has potential to reduce Safety Monitor volumes
Associated benefit dependent on actual load reduction by isolation
DM loads “protected by isolation” have certain obligations during an emergency
Obligations set out in UNC TPD Section Q and the Emergency Procedures

3. Emergency Procedures E1 – Network Gas Supply Emergency (NGSE)
Managing gas supply emergencies on the primary system (NTS)
E2 – Local Gas Supply Emergency (LGSE)
Managing gas supply emergencies on the secondary system (DN)
E3 – Operational Procedures

4. Emergency Stages

5. Demand Reduction