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This paper presents a short overview of the development of wave energy converters (WECs) since the 1970s where the oil crises raised the interest in renewable power generation.
The “small is beautiful” motto is dealt with and dismissed when regarding the commercial viability of utility scale WEC power plants. The potential future developmental pat...
Contexts in source publication
Context 1
... study "Performance and economic feasibility analysis of 5 wave energy devices off the west coast of Ireland" [14], shows as expected that the cost of energy reduces significantly with increased farm size. It also shows that the reduction varies for the different device types -see figure 6. Comprehensive studies on wave energy The book "Ocean Wave Energy Conversion" [15], gives a good overview of the ocean wave energy resource and the potential markets. ...
Context 2
... study "Performance and economic feasibility analysis of 5 wave energy devices off the west coast of Ireland" [14], shows as expected that the cost of energy reduces significantly with increased farm size. It also shows that the reduction varies for the different device types -see figure 6. Comprehensive studies on wave energy The book "Ocean Wave Energy Conversion" [15], gives a good overview of the ocean wave energy resource and the potential markets. Many WEC types are described -also more exotic types than the ones mentioned in this article. Also lists of WECs tested in large scale since 2001 and photos of many of the devices, can be found in the book. The study delivers many useful findings regarding the viability of wave power. Unfortunately, it is also stated that: "...developers of wave energy converters should concentrate their effort on the development of technologies adapted to these water depth of 10-20m.". All entrepreneurs who have worked in this depth zone at exposed coasts know however that it is extremely difficult and costly to construct and maintain any kind of installations in this zone -see also p.3 in this ...
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Citations
The Canary Islands are still largely dependent on expensive imported fossil fuels, are stressed by the increasing touristic impact and are extremely vulnerable to climate change due to water scarcity. Water desalinisation is an energy-demanding process and is essential to the sustainable development of these islands. The aim of this study is to explore the potential advantages of a hybrid installation, exploiting two different renewable energy sources, specifically waves and solar, to supply a large desalination plant in Tenerife. The paper ultimately provides a generally applicable procedure for the design of hybrid installations, including three steps: the assessment of available renewable energy sources, the optimal combination of these sources and finally the economic assessment. The wave and solar resources are assessed first, then the hybrid installation is conceptually designed proposing a criterion for the optimal mixing of the renewable energy sources that can be applied to other resources and other sites. The basic idea is to maximize the exploitation of the renewable power, minimizing the need of the fossil-based back-up system. The costs of the hybrid installation are finally assessed considering the sensitivity to government incentives, showing that the project parity point is reached within the lifetime of typical desalination plants (i.e. 40 years) and can be significantly more attractive in case of Feed-In-Tariffs available in other European countries.