Replacement Reserve for the Italian Power System and Electricity Market

Mauro Caprabianca, Maria Carmen Falvo, Lorenzo Papi, Lucrezia Promutico, Viviana Rossetti and Federico Quaglia
Additional contact information
Mauro Caprabianca: TERNA, Viale Egidio Galbani 70, 00056 Rome, Italy
Maria Carmen Falvo: DIAEE—Deparment of Astronautics, University of Rome Sapienza, Energy and Electrical Engineering, via Eudossiana 18, 00184 Rome, Italy
Lorenzo Papi: DIAEE—Deparment of Astronautics, University of Rome Sapienza, Energy and Electrical Engineering, via Eudossiana 18, 00184 Rome, Italy
Lucrezia Promutico: TERNA, Viale Egidio Galbani 70, 00056 Rome, Italy
Viviana Rossetti: TERNA, Viale Egidio Galbani 70, 00056 Rome, Italy
Federico Quaglia: TERNA, Viale Egidio Galbani 70, 00056 Rome, Italy

Energies, 2020, vol. 13, issue 11, 1-19

Abstract: Over the last years, power systems around the globe experienced deep changes in their operation, mainly induced by the widespread of Intermittent Renewable Energy Sources (IRES). These changes involved a review of market and operational rules, in the direction of a stronger integration. At European level, this integration is in progress, driven by the new European guidelines and network codes, which deal with multiple issues, from market design to operational security. In this framework, the project TERRE (Trans European Replacement Reserve Exchange) is aimed at the realization of a European central platform, called LIBRA, for the exchange of balancing resources and, in particular, for the activation of the procured Replacement Reserve (RR) resources. The Italian Transmission System Operator (TSO), TERNA, is a participant of the project and it is testing new methodologies for the sizing of RR and its required activation throughout the TERRE process. The aim of the new methodologies is to find areas of potential improvement in the sizing of RR requirements and activation, which open up the possibility for a reduction of the procurement cost, without endangering the security of the power system. This paper describes a new RR sizing methodology, proposed by TERNA, which is based on a persistence method, showing its results on real data and highlighting key advantages and potential limitations of this approach. In order to overcome these limitations, a literature review on alternative approaches has been carried out, identifying nowcasting techniques as a relevant alternative for the very short term forecast horizon. These one could be further investigated and tested in the future, using the proposed persistence method as a benchmark.

Keywords: frequency control; regulation; electricity market; reserve; power system; transmission grid (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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