Ocean Renewable Energy Test Centers

There is an increasing need for utilization of ocean renewable energy (ORE) around Japanese coast because Japan is surrounded by ocean. Because technologies for harnessing ORE have not been mature enough, Japanese government selects some demonstration sites for ORE devices and some demonstration projects are going. As these projects are progressed, the operation and maintenance (O&M) activities will increase and become essential factors for the success of demonstration projects. Hence, weather window analysis is required to quantify the levels of access for ORE devices in the demonstration projects, and commercial projects in the future. In this paper, two new parameters are proposed in order to evaluate accessibility to ORE devices. One is the operational probability, and the other is the forecasted waiting time. The operational probability assesses weather duration with considering variability of wave condition. The forecasted waiting time is an expectation value of waiting time before O&M planners get next chance to arrange the O&M activities. In order to check the effectivity of the proposed 2 parameters, accessibility is evaluated for significant wave height in terms of the 2 proposed parameters, these are • Operational probability • Forecasted waiting time and 3 conventional parameters, these are • Excess probability • Persistence probability • Waiting time between windows The accessibility is evaluated at two locations along the Japanese coast. This study reveals that large differences are caused between persistence probability and operational probability when operational wave height limit occurs intermittently and required window length is long. The forecasted waiting time has the same variation tendency as the waiting time between windows.

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Other Aspects of Ocean Renewable Energy

Fundamentals of Ocean Renewable Energy ◽

10.1016/b978-0-12-810448-4.00010-0 ◽

2018 ◽

pp. 271-309

Author(s):

Simon P. Neill ◽

M. Reza Hashemi

Keyword(s):

Renewable Energy ◽

Ocean Renewable Energy

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Coordinators Overview and Lessons Learned From the Galway Bay Seatrials of the FP7 EU Funded CORES Wave Energy Project

Volume 8: Ocean Renewable Energy ◽

10.1115/omae2013-11123 ◽

2013 ◽

Author(s):

Raymond Alcorn ◽

Anthony Lewis ◽

Mark Healy

Keyword(s):

Renewable Energy ◽

Wave Energy ◽

Energy Systems ◽

Project Manager ◽

Lessons Learned ◽

Ocean Energy ◽

Renewable Energy Systems ◽

Energy Devices ◽

Ocean Renewable Energy ◽

The Coordinator

The paper discusses the lessons learned from the European Funded Framework 7 Research project Components for Ocean Renewable Energy Systems (CORES) which developed and trialed new components and systems for ocean energy devices. The authors are the coordinator and project manager so the paper will give this overview of the project. This will include detail of the work packages, major achievements, significant impacts, summary results and outcomes of the sea trials.

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Ocean Renewable Energy Potential, Technology, and Deployments: A Case Study of Brazil

Energies ◽

10.3390/en12193658 ◽

2019 ◽

Vol 12 (19) ◽

pp. 3658 ◽

Cited By ~ 9

Author(s):

Milad Shadman ◽

Corbiniano Silva ◽

Daiane Faller ◽

Zhijia Wu ◽

Luiz de Freitas Assad ◽

...

Keyword(s):

Renewable Energy ◽

Numerical Models ◽

Salinity Gradient ◽

Ocean Current ◽

Brazilian Coast ◽

Renewable Energy Resources ◽

Energy Potential ◽

Ocean Renewable Energy ◽

Global Status

This study, firstly, provides an up-to-date global review of the potential, technologies, prototypes, installed capacities, and projects related to ocean renewable energy including wave, tidal, and thermal, and salinity gradient sources. Secondly, as a case study, we present a preliminary assessment of the wave, ocean current, and thermal gradient sources along the Brazilian coastline. The global status of the technological maturity of the projects, their different stages of development, and the current global installed capacity for different sources indicate the most promising technologies considering the trend of global interest. In Brazil, despite the extensive coastline and the fact that almost 82% of the Brazilian electricity matrix is renewable, ocean renewable energy resources are still unexplored. The results, using oceanographic fields produced by numerical models, show the significant potential of ocean thermal and wave energy sources in the northern and southern regions of the Brazilian coast, which could contribute as complementary supply sources in the national electricity matrix.

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A Feasibility Study on Hybrid Use of Ocean Renewable Energy Resources Around Japan

Volume 8: Ocean Renewable Energy ◽

10.1115/omae2013-11040 ◽

2013 ◽

Cited By ~ 3

Author(s):

Tomoki Taniguchi ◽

Shigesuke Ishida ◽

Yoshimasa Minami

Keyword(s):

Power Generation ◽

Renewable Energy ◽

Wind Energy ◽

Energy Resource ◽

Energy Resources ◽

Renewable Energy Resources ◽

Japanese Coast ◽

Ocean Renewable Energy ◽

Resource Needs ◽

Sea Area

This paper addressed assessing feasibility of hybrid use of ocean renewable energy, such as wave and wind energy around Japanese coast. At first, wave and wind energy theoretical potentials were calculated and, in the second step, correlation coefficient between wave and wind energy was computed around Japanese coast. Sea area suitable for hybrid use of ocean renewable energy resources is supposed to have high potential for some types of energy resources. Furthermore, correlation of power generation between wave and wind energy resources should be low because one energy resource needs to complement another one for stabilizing power generation. Based on the assumptions, feasibility of wind and wave energy was evaluated on some sea areas where R&D project are ongoing.

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