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Publication Detail
Sustainable island power system – Scenario analysis for Crete under the energy trilemma index
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Publication Type:Journal article
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Publication Sub Type:Article
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Authors:Zafeiratou E, Spataru C
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Publisher:Elsevier
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Publication date:31/05/2018
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Journal:Sustainable Cities and Society
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Status:Published online
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Print ISSN:2210-6707
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Language:English
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Keywords:electricity, energy storage, energy trilemma, interconnections, islands, natural gas, renewable energy, scenarios
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Publisher URL:
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Full Text URL:
Abstract
Sustainable energy supply is an essential part for economic and social development in every society. Islands as geographical isolated regions have to confront a number of challenges to secure a reliable and clean energy system. Currently, electricity demand on the Greek island of Crete is supplied by oil-fired engines imposed to new emissions restrictions applied from 2020. Thus, a capacity upgrade is necessary and new solutions driven by renewable energy, energy storage and interconnections. This study investigates three scenarios: Business as Usual (BAU); Natural Gas (NG); and the Interconnection of Crete with the National Grid System (Int.) to assess the potential techno-economic and environmental impact of the required transition under the Energy Trilemma Index. A capacity expansion and operation optimisation process has been applied through a high resolution spatio-temporal analysis performed with PLEXOS Integrated Energy Model. It was concluded that no BAU Scenario could facilitate a future plan for the electricity system of Crete or any European island imposed to such constrains. The optimum scenario incorporates interconnectors and energy storage systems that manage to deliver 52% reduction in the total system costs (2020-2040), 79% in electricity prices and 48% reduction in GHG emissions by 2040, compared to the BAU.
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