Load control services in the management of power system security costs

The new climate of deregulation in the electricity industry is creating a n eed for a more transparent cost structure and within this framework the cos t of system security has been a subject of considerable interest. Tradition ally power system security has been supplied by out-of-merit generation, in the short term, and transmission reinforcement,in the long term. This pape r presents a method of analysing the role of load-demand in the management of power system security costs by utilising load control services (LCS). It also proposes a competitive market to enable bidding from various particip ants within the electricity industry to supply system security.