%0 Journal Article %A A. Ehsani and A. Karimizadeh and H. Fallahi and A. Jalali %D 2009 %J International Journal of Electrical and Computer Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 36, 2009 %T A Comparison of Deterministic and Probabilistic Methods for Determining the Required Amount of Spinning Reserve %U https://publications.waset.org/pdf/1074 %V 36 %X In an electric power system, spinning reserve requirements can be determined by using deterministic and/or probabilistic measures. Although deterministic methods are usual in many systems, application of probabilistic methods becomes increasingly important in the new environment of the electric power utility industry. This is because of the increased uncertainty associated with competition. In this paper 1) a new probabilistic method is presented which considers the reliability of transmission system in a simplified manner and 2) deterministic and probabilistic methods are compared. The studied methods are applied to the Roy Billinton Test System (RBTS). %P 2379 - 2384