The report describes the research activities carried out to deepen the knowledge of the European intraday market SIDC (Single Intraday Coupling), its implementation in Italy and the continuous trading mechanism, different from the one historically used in the Italian intraday market (IM), based on auctions.
The first part describes the European countries involved and their NEMOs (National Electricity Market Operators), the division of the market zones and the resulting problems in determining inter-zonal capacity, the various national implementation projects, including the Italian one, and an overview of the trading volumes in recent years, in terms of energy and number of buy and sell transactions. This is followed by a description of the main features of the SIDC, the different types of orders, the modules for managing the order register and the available inter-zonal capacities, and the auctions.
The second part presents the peculiarities of participation in the SIDC of the new Italian intraday market, with the introduction of new market areas and new methods of presenting orders in the portfolio, the nomination process that allocates the results of the negotiations to the actual production units, and finally the new regional auctions called CRIDA (Complementary Regional Intraday Auctions).
The third part presents the results of statistical analyses carried out on the data relating to the year 2020 of the Iberian and German intraday markets, provided by the respective managers OMIE and EPEX, with particular attention to the interrelationships between the results of the auctions, six in the Iberian market and one in the German, and the results of continuous trading.
The fourth and final part describes a specially created application that allows the simulation of the continuous trading mechanism, thus making it possible to carry out experimental activities that, in addition to statistical analysis activities, improve the understanding and study of the dynamics of continuous trading and the behavior of market operators who adapt their supply strategies based on the price signals continuously received from the market.