Security Risks Assessment on the 400/275/25 kV Elvanfoot Power Substation from Scotland in Order to Ensure Resilience and Energy Security

This In the face of the new elements of power instability (vulnerabilities, threats, risks and dangers) faced by European states, due to the global military and energy crisis, each European partner must have a strategy to protect and strengthen the resilience of critical power infrastructures (400 kV power substations and overhead lines), in order to ensure continuity in the supply of electrical energy to final consumers. But the deficiencies of these infrastructures generate a series of threats to the population through the lack of facilities. The assessment of 400 kV power substations must become a strategic European security objective, prompting European states to take measures to identify and manage any risk or threat. For this reason, the Scottish Electricity Transmission System, which is an integral part of the National Grid Electricity Transmission, which operates at nominal voltages of 400 kV and 275 kV in the UK (Scotland, England and Wales), where the system and transmission operator is the multinational energy company National Grid PLC, it becomes a major European security objective. Because the 400/275/25 kV Elvanfoot power substation is transiting electricity from the western part of Scotland to England and vice versa, it must be evaluated permanently eliminating the danger of a black-out, which can cause major damage to industry, economy and population. The results of the paper are materialized by careful analysis of the scottish power system, identification of critical infrastructures and assessment of the level of security risk. Vulnerabilities, threats, risks and dangers have been identified.