Dammam, March 2019 – CESI Middle East delivered a 5-day training course on transmission system losses to National Grid – Saudi Electricity Company (SEC) in Dammam, through GCC ETL. The course contained important aspects for network planners, operators, and utility managers, such as notions on network modelling, voltage and frequency control, active and reactive power management, loss analysis, options and cost-benefit considerations. The goal is to create a better understanding of transmission system losses, what causes them and options to reduce them. These days every utility wants to carefully optimise their system and efficiently modelled system losses are more important than ever.