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Main Title: Seawater desalination in micro grids
Subtitle: An integrated planning approach
Author(s): Bognar, Kristina
Blechinger, Philipp
Behrendt, Frank
Type: Article
Language: English
Language Code: en
Abstract: Background: Islands often depend on the import of fossil fuels for power generation. Due to the combined effect of high oil prices and transportation costs, energy supply systems based on renewable energies are already able to compete successfully with fossil fuel systems for a number of these islands. Depending on local and regional conditions, not only energy supply is a challenge, but also the finding of a reliable supply of water. A promising alternative to freshwater shipments is seawater desalination. Desalination processes can act as a flexible load whenever excess electricity generated by renewable sources is present. Methods: Numerical simulations of combined energy and water supply systems for the Caribbean island Petite Martinique, Grenada, are accomplished. Considering renewable energy sources like wind and solar radiation, energy storage technologies, and desalination processes, various scenarios are introduced and simulated, and the results are compared. Results: An extension of the current energy supply system with renewable energy technologies reduces power generation costs by approximately 40%. The excess energy generated by renewables can supply a significant share of a desalination plant’s energy demand. The levelized costs of electricity and water show that the integration of desalination as a deferrable load is beneficial to the considered micro grid. Conclusions: The implementation of renewable energy generation and desalination as deferrable load is recommendable in Petite Martinique. Possible refinancing strategies depending on the combination of different electricity and water tariffs can be derived and applied to similar business cases in remote regions.
URI: urn:nbn:de:kobv:83-opus4-70432
Issue Date: 2012
Date Available: 13-Aug-2015
DDC Class: 333 Boden- und Energiewirtschaft
Subject(s): Demand side management
Renewable energies
Techno-economic optimization
Water cogeneration
Journal Title: Energy, Sustainability and Society
Publisher: Springer
Publisher Place: Berlin ; Heidelberg
Volume: 2
Article Number: 14
Publisher DOI: 10.1186/2192-0567-2-14
Notes: Published by Springer Open Bognar, Kristina ; Blechinger, Philipp ; Behrendt, Frank : Seawater desalination in micro grids : an integrated planning approach. - In: Energy, Sustainability and Society. - ISSN 2192-0567 (online). - 2 (2012), art. 14. - doi:10.1186/2192-0567-2-14.
Appears in Collections:Zentralinstitut El Gouna » Publications

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