System Reliability Versus Free Electricity Market

摘要

Romanian electricity market is one of the most developed markets in Europe. Started in July 2005,based on Romanian Commercial Code – elaborated , with consultancy of KEMA-the Romanianelectricity market has developed 3 markets for electricity ( Bilateral Contracts Market Day AheadMarket and Balancing Market), one market for reserve (Ancillary Services Market), one market forcross border capacity ( Capacity Allocation Market) and Green certificates Market for green energystimulation.In addition to all the tasks concerning reliable operation of the power system, the RomanianTransmission System Operator has become responsible for Balancing Market, Ancillary ServicesMarket, Capacity Allocation Market by operating balancing mechanism, such as scheduling,balancing, congestion management, provision of ancillary services all based on commercial criteria. Inits responsibilities it is included also the task of Market Monitoring, in cooperation with RomanianRegulatory Authority (ANRE). For this purpose within the TSO it was implemented a MarketMonitoring Unit. We are preoccupied for increasing the market transparency in order to sustaincompetition and the participants to establish their market strategy and behaviour on the market. Thedata are published both on public and limited access web site. Also we developed the marketMonitoring process by creating own MMU (Market Monitoring Unit).The paper presents the Romanian experience for maintaining the reliability of the system, at thenormal level, in conditions of electricity market operation (consumption covering process usingbilateral market, day ahead market and balancing market, short term system planning and congestionmanagement).