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Title

Interconnecting an isolated electricity system to the European market: The case of Malta
Authors
Ries, Jan
Gaudard, Ludovic
Romerio-Giudici, Franco
Published in Utilities Policy. 2016, vol. 40, p. 1-14
Abstract The long-term European Union (EU) energy policy increasingly requires member countries to reform existing power systems, including those of small island states. These are commonly isolated electricity systems that rely heavily on imported fossil fuels. Interconnections with mainland power systems are an alternative to offset the exposure to volatile fuel prices. This paper studies the 200-MW (MW) subsea transmission cable between the EU island member state of Malta and Sicily that was inaugurated on April 2015. Our main purpose is to examine whether and to what extent Malta's vulnerability to distinct oil price scenarios can be overcome with this new interconnector. We describe the process used to simulate the merit order for both Malta's isolated and interconnected electric generation setup. The algorithm used provides the average electricity spot price and economic scarcity rent of electricity im- ports and exports. The main finding is that the Malta-Sicily interconnector does not necessarily lower electricity prices for Malta's consumers. However, some scenarios, notably the incorporation of natural gas in Malta's future generation portfolio, achieve winewin situations for both consumer and supplier. The Malta case study shows that cable impacts depend on the installed generation capacity, oil price, and market design.
Keywords Isolated electricity systems Interconnection — Merit order — Grid — Malta — Italy
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Other version: http://linkinghub.elsevier.com/retrieve/pii/S0957178716300698
Structures
Centres et instituts / Institut des sciences de l'environnement
Faculté d'économie et de management
Research group Energie, politique et économie
Citation
(ISO format) 		RIES, Jan, GAUDARD, Ludovic, ROMERIO-GIUDICI, Franco. Interconnecting an isolated electricity system to the European market: The case of Malta. In: Utilities Policy, 2016, vol. 40, p. 1-14. https://archive-ouverte.unige.ch/unige:86153

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Deposited on : 2016-08-17

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