ABSTRACT
Due to the isolated nature and the small size of island power systems, most of them are operated under a centralized scheme. In a classical centralized scheme, generating units are programmed according to economic dispatch rules that take into account the security of supply issues. Generation is remunerated according to the standard costs of the different generation technologies. Unit commitment models over different time frames serve as the main tool for planning and operating purposes to analyze the economic impact of the different options that can be accomplished within an island power system.
