Proposal of a New Procurement Strategy of Frequency Control Reserves in Power Systems: The Italian Case in the European Framework

Over the last few years, a strong penetration of Intermittent Renewable Energy Sources (IRES) has been in progress Italian power system. In this new framework, dispatching activity must improve its efficiency to ensure adequacy and security national electricity European market integration initiatives are making goal achievable, provided that coherency price signals reserve procurement at level guaranteed. For reason, Transmission System Operator (TSO), Terna, started investigate opportunity align reserve-procurement approach one adopted most countries, procuring Replacement Reserve (RR) dedicated auctions held advance day-ahead market. The aim methodology is arising from integrated market, anticipating potential scarcity conditions, thus helping keep standards high. This paper describes characteristics possible model based on benchmark. Comparative simulations presented, estimating impact terms outcomes costs both energy ancillary services markets Italy. results study suggest activation auction only cases which TSO expects risk simultaneous across countries.