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 in the Italian power system. In this new framework, the dispatching activity must improve its efficiency to ensure adequacy and security of the national electricity system. European mar...

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Main Authors: Enrico Maria Carlini, Mauro Caprabianca, Maria Carmen Falvo, Sara Perfetti, Luca Luzi, Federico Quaglia
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/19/6105
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author Enrico Maria Carlini
Mauro Caprabianca
Maria Carmen Falvo
Sara Perfetti
Luca Luzi
Federico Quaglia
author_facet Enrico Maria Carlini
Mauro Caprabianca
Maria Carmen Falvo
Sara Perfetti
Luca Luzi
Federico Quaglia
author_sort Enrico Maria Carlini
collection DOAJ
description Over the last few years, a strong penetration of Intermittent Renewable Energy Sources (IRES) has been in progress in the Italian power system. In this new framework, the dispatching activity must improve its efficiency to ensure adequacy and security of the national electricity system. European market integration initiatives are making this goal achievable, provided that the coherency of market price signals and reserve procurement at the European level are guaranteed. For this reason, the Italian Transmission System Operator (TSO), Terna, started to investigate the opportunity to align the Italian reserve-procurement approach to the one adopted in most European countries, procuring Replacement Reserve (RR) in dedicated auctions held in advance of the day-ahead market. The aim of this new methodology is to improve the coherency of price signals arising from the integrated European day-ahead market, anticipating potential scarcity conditions, thus helping to keep adequacy standards high. This paper describes the characteristics of a possible new reserve-procurement model based on the European benchmark. Comparative simulations are presented, estimating the impact of the new approach in terms of outcomes and costs of both the energy and ancillary services markets in Italy. The results of this study suggest activation of the reserve auction only in the cases in which the TSO expects a potential risk of simultaneous reserve scarcity across European countries.
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spelling doaj.art-71383874db2d4a94b959edcf4ec73aeb2023-11-22T15:59:21ZengMDPI AGEnergies1996-10732021-09-011419610510.3390/en14196105Proposal of a New Procurement Strategy of Frequency Control Reserves in Power Systems: The Italian Case in the European FrameworkEnrico Maria Carlini0Mauro Caprabianca1Maria Carmen Falvo2Sara Perfetti3Luca Luzi4Federico Quaglia5Terna, Viale Egidio Galbani, 70, 00056 Rome, ItalyTerna, Viale Egidio Galbani, 70, 00056 Rome, ItalyDIAEE-Department of Astronautics, Energy and Electrical Engineering, University of Rome Sapienza, Via Eudossiana 18, 00184 Rome, ItalyTerna, Viale Egidio Galbani, 70, 00056 Rome, ItalyTerna, Viale Egidio Galbani, 70, 00056 Rome, ItalyTerna, Viale Egidio Galbani, 70, 00056 Rome, ItalyOver the last few years, a strong penetration of Intermittent Renewable Energy Sources (IRES) has been in progress in the Italian power system. In this new framework, the dispatching activity must improve its efficiency to ensure adequacy and security of the national electricity system. European market integration initiatives are making this goal achievable, provided that the coherency of market price signals and reserve procurement at the European level are guaranteed. For this reason, the Italian Transmission System Operator (TSO), Terna, started to investigate the opportunity to align the Italian reserve-procurement approach to the one adopted in most European countries, procuring Replacement Reserve (RR) in dedicated auctions held in advance of the day-ahead market. The aim of this new methodology is to improve the coherency of price signals arising from the integrated European day-ahead market, anticipating potential scarcity conditions, thus helping to keep adequacy standards high. This paper describes the characteristics of a possible new reserve-procurement model based on the European benchmark. Comparative simulations are presented, estimating the impact of the new approach in terms of outcomes and costs of both the energy and ancillary services markets in Italy. The results of this study suggest activation of the reserve auction only in the cases in which the TSO expects a potential risk of simultaneous reserve scarcity across European countries.https://www.mdpi.com/1996-1073/14/19/6105electricity marketpower systemreservefrequency regulationsecurity
spellingShingle Enrico Maria Carlini
Mauro Caprabianca
Maria Carmen Falvo
Sara Perfetti
Luca Luzi
Federico Quaglia
Proposal of a New Procurement Strategy of Frequency Control Reserves in Power Systems: The Italian Case in the European Framework
Energies
electricity market
power system
reserve
frequency regulation
security
title Proposal of a New Procurement Strategy of Frequency Control Reserves in Power Systems: The Italian Case in the European Framework
title_full Proposal of a New Procurement Strategy of Frequency Control Reserves in Power Systems: The Italian Case in the European Framework
title_fullStr Proposal of a New Procurement Strategy of Frequency Control Reserves in Power Systems: The Italian Case in the European Framework
title_full_unstemmed Proposal of a New Procurement Strategy of Frequency Control Reserves in Power Systems: The Italian Case in the European Framework
title_short Proposal of a New Procurement Strategy of Frequency Control Reserves in Power Systems: The Italian Case in the European Framework
title_sort proposal of a new procurement strategy of frequency control reserves in power systems the italian case in the european framework
topic electricity market
power system
reserve
frequency regulation
security
url https://www.mdpi.com/1996-1073/14/19/6105
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