Ocean thermal energy conversion—flexible enabling technology for variable renewable energy integration in the Caribbean

Many Caribbean island nations have historically been heavily dependent on imported fossil fuels for both power and transportation, while at the same time being at an enhanced risk from the impacts of climate change, although their emissions represent a very tiny fraction of the global total responsi...

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Main Authors: Brecha, RJ, Schoenenberger, K, Ashtine, M, Koon Koon, R
Format: Journal article
Language:English
Published: MDPI 2021
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author Brecha, RJ
Schoenenberger, K
Ashtine, M
Koon Koon, R
author_facet Brecha, RJ
Schoenenberger, K
Ashtine, M
Koon Koon, R
author_sort Brecha, RJ
collection OXFORD
description Many Caribbean island nations have historically been heavily dependent on imported fossil fuels for both power and transportation, while at the same time being at an enhanced risk from the impacts of climate change, although their emissions represent a very tiny fraction of the global total responsible for climate change. Small island developing states (SIDSs) are among the leaders in advocating for the ambitious 1.5 °C Paris Agreement target and the transition to 100% sustainable, renewable energy systems. In this work, three central results are presented. First, through GIS mapping of all Caribbean islands, the potential for near-coastal deep-water as a resource for ocean thermal energy conversion (OTEC) is shown, and these results are coupled with an estimate of the countries for which OTEC would be most advantageous due to a lack of other dispatchable renewable power options. Secondly, hourly data have been utilized to explicitly show the trade-offs between battery storage needs and dispatchable renewable sources such as OTEC in 100% renewable electricity systems, both in technological and economic terms. Finally, the utility of near-shore, open-cycle OTEC with accompanying desalination is shown to enable a higher penetration of renewable energy and lead to lower system levelized costs than those of a conventional fossil fuel system.
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spelling oxford-uuid:24ff92b3-3d14-44ea-9cd8-dc584fbe467a2022-12-07T15:28:19ZOcean thermal energy conversion—flexible enabling technology for variable renewable energy integration in the CaribbeanJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:24ff92b3-3d14-44ea-9cd8-dc584fbe467aEnglishSymplectic ElementsMDPI2021Brecha, RJSchoenenberger, KAshtine, MKoon Koon, RMany Caribbean island nations have historically been heavily dependent on imported fossil fuels for both power and transportation, while at the same time being at an enhanced risk from the impacts of climate change, although their emissions represent a very tiny fraction of the global total responsible for climate change. Small island developing states (SIDSs) are among the leaders in advocating for the ambitious 1.5 °C Paris Agreement target and the transition to 100% sustainable, renewable energy systems. In this work, three central results are presented. First, through GIS mapping of all Caribbean islands, the potential for near-coastal deep-water as a resource for ocean thermal energy conversion (OTEC) is shown, and these results are coupled with an estimate of the countries for which OTEC would be most advantageous due to a lack of other dispatchable renewable power options. Secondly, hourly data have been utilized to explicitly show the trade-offs between battery storage needs and dispatchable renewable sources such as OTEC in 100% renewable electricity systems, both in technological and economic terms. Finally, the utility of near-shore, open-cycle OTEC with accompanying desalination is shown to enable a higher penetration of renewable energy and lead to lower system levelized costs than those of a conventional fossil fuel system.
spellingShingle Brecha, RJ
Schoenenberger, K
Ashtine, M
Koon Koon, R
Ocean thermal energy conversion—flexible enabling technology for variable renewable energy integration in the Caribbean
title Ocean thermal energy conversion—flexible enabling technology for variable renewable energy integration in the Caribbean
title_full Ocean thermal energy conversion—flexible enabling technology for variable renewable energy integration in the Caribbean
title_fullStr Ocean thermal energy conversion—flexible enabling technology for variable renewable energy integration in the Caribbean
title_full_unstemmed Ocean thermal energy conversion—flexible enabling technology for variable renewable energy integration in the Caribbean
title_short Ocean thermal energy conversion—flexible enabling technology for variable renewable energy integration in the Caribbean
title_sort ocean thermal energy conversion flexible enabling technology for variable renewable energy integration in the caribbean
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