Title page
Contents
General Information / Introduction 5
Purpose of Document 5
Document Development 5
Document Scope 5
Governance 6
Roles and Responsibilities 7
Roles and Responsibilities of Competent Authority in relation to GB 7
Roles and Responsibilities of Competent Authority in relation to GB as Competent Authority for NI 7
Tasks delegated to DfE- NI 8
Measures to Prepare for and Prevent Electricity Crises 9
The Legislative Framework 9
The Licensing Regime 10
Price Controls 10
Industry Codes and Standards 10
Industry Measures 11
Environmental Hazards 12
System Failures 13
Cross-Cutting Measures 13
Market Based Measures to Cope with Electricity Crises 15
Wholesale Electricity Market 15
Capacity Market 15
Balancing Mechanism 16
Balancing Services 16
Reserve Services 16
Margin 16
Frequency Response Services 17
Demand Side Response 17
Intertripping Tripping Schemes 17
Market Actions 17
Deliverable Offer 18
Warming Instructions 19
Buy Energy from Continental Europe 19
Reconfigure Closed-Circuit Gas Turbines (CCGTs) 19
SO-SO Trade 19
Reconfigure Transmission Network 19
Recall Assets from Outage 20
Market Notices 20
Non-market-based measures to enact during electricity crises 21
Manual Demand Disconnection 24
Demand Control 24
Rota Load Disconnection 25
Automatic Demand Disconnection 27
Low Frequency Demand Disconnection 27
Fuel Security Code (FSC) 28
Emergency Assistance 29
Maximum Generation 29
Electricity System Restoration 30
Crises Procedures and Information Flows during an Electricity Crisis 31
Situational Assessment and Management 32
Assessment and action plan 34
Daily rhythm 34
Procedures for stand-down / closure and review 35
Mechanisms for Informing the public 36
Annex A: Template for the Risk Preparedness Plan 37
Annex B: Relevant articles from the Regulation 38
Table 1. Protection Systems 12
Table 2. Summary of everyday market-based actions NGESO can take to prevent / manage an electricity crisis 18
Table 3. Summary of enhanced market-based actions NGESO can take to prevent / manage an electricity crisis 18
Table 4. Summary of Non-Market-Based Actions NGESO can take to prevent / manage an electricity crisis 22
Table 5. Summary of Demand Control Disconnection Procedure 25
Table 6. Summary of Rota Load Disconnection Procedure 26
Table 7. Summary of LFDD Procedure 27
Table 8. Summary of FSC Procedure 28
Figure 1. Trigger levels for when Emergency Measures would be issued by NGESO 24