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Leading the Way in Offshore Renewable Energy and Wave Energy Conversion

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A3: Wind, Wave and Tidal Energy".

Deadline for manuscript submissions: 15 May 2025 | Viewed by 885

Special Issue Editor


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Guest Editor
Department of Information, Infrastructure and Sustainable Energy Engineering, University of Reggio Calabria, Reggio Calabria, Italy
Interests: renewable energy; wind energy; wave energy; tidal energy

Special Issue Information

Dear Colleagues,

We are pleased to invite you to contribute to our Special Issue, “Leading the Way in Offshore Renewable Energy and Wave Energy Conversion” This Special Issue will focus on recent advances, ongoing challenges and innovative solutions in the field of offshore renewable energy and wave energy conversion. We will highlight research that addresses technological, environmental and economic barriers while presenting breakthrough solutions and strategies for the large-scale deployment of marine energy conversion systems.

We welcome submissions that address key challenges in this area. Typical challenges include the following:

- Environmental Impact: Studies on the impacts of wave energy devices on marine ecosystems, focusing on noise pollution, migration disruption, habitat modification, coastal erosion, sediment transport and environmental compliance.

- Technical and Engineering Barriers: Research on structural durability, power generation efficiency and grid integration. This includes work on the reliability of offshore devices under harsh marine conditions, improvements in device efficiency and the optimization of energy transmission from offshore to onshore grids.

- Economic and Financial Challenges: Papers investigating the financial dynamics of offshore renewable energy projects, including the high initial costs, long payback period, financing and subsidies and comparative cost effectiveness versus other renewable energy sources.

This Special Issue also examines the latest advances in offshore renewable energy and wave energy conversion, including the following:

- Technology and Device Design Innovations: Papers on point absorbers, oscillating water columns, overtopping devices, hybrid systems and advances in cabling and mooring;

- Materials and Construction Advances: Studies on corrosion-resistant materials, self-healing materials and modular, scalable designs that enhance durability and ease of deployment;

- Data and Digital Technologies: Research using IoT sensors, predictive maintenance, wave prediction with machine learning and digital twins to improve device performance, efficiency and resilience.

Finally, we encourage submissions that present innovative solutions to address challenges in sustainable power generation, cost reduction and environmental mitigation, such as the following:

- Sustainable Power and Storage Solutions: Research on battery storage systems, hydrogen production and offshore energy hubs that integrate multiple renewable energy sources;

- Cost Reduction and Scaling Strategies: Studies on floating wave energy farms, shared infrastructure and public–private partnerships;

- Environmental Mitigation and Community Engagement: Solutions such as artificial reefs, community benefit programs and adaptive environmental monitoring that address ecological concerns and support local communities.

This Special Issue invites both experimental studies and comprehensive reviews in each of these focus areas. We look forward to receiving valuable contributions that will advance knowledge, technology and sustainability related to offshore renewable energy and wave energy conversion.

Dr. Luana Gurnari
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • offshore wind turbine design
  • offshore renewable energy sources (ORESs)
  • offshore wind
  • floating offshore solar systems
  • ocean wave energy
  • tidal energy
  • wave energy converter
  • energy conversion

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Published Papers (1 paper)

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Research

34 pages, 10191 KiB  
Article
Design and Numerical Investigation on Octagonal Barge-Type FOWT with Counterweight Suspension System
by Yung-Chun Sun and Ray-Yeng Yang
Energies 2025, 18(2), 264; https://doi.org/10.3390/en18020264 - 9 Jan 2025
Cited by 1 | Viewed by 626
Abstract
This study aims at enhancing platform design and passive control technology, reducing maintenance costs, and increasing stability and efficiency. The selected site for this study is offshore water in Hsinchu, Taiwan. Owing to shallow water conditions at the selected site, an octagonal barge-type [...] Read more.
This study aims at enhancing platform design and passive control technology, reducing maintenance costs, and increasing stability and efficiency. The selected site for this study is offshore water in Hsinchu, Taiwan. Owing to shallow water conditions at the selected site, an octagonal barge-type platform was chosen for investigation of its suitability in this study. A counterweight suspension system was used to improve stability and avoid pitch resonance. Meanwhile, an octagonal barge platform carrying the NREL-5MW offshore wind turbine was designed. It uses SolidWorks for modeling, Ansys AQWA for hydrodynamic calculations, and Orcina OrcaFlex for wind/wave/current coupling dynamic analysis. Key research results include optimizing the counterweight suspension system and ensuring compliance with Det Norske Veritas (DNV) regulations, covering Ultimate Limit States (ULSs), Accidental Limit States (ALS)s, Serviceability Limit States (SLSs), and Fatigue Limit States (FLSs). Thus, the major inspections include platform motions, mooring line tension, and suspension system tension during turbine operation and parking. Comparisons are made with and without the counterweight suspension system. Full article
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