(Closed) SOS-WindEnergy – Sustainable Reuse of Decommissioned Offshore Jacket Platforms for Offshore Wind Energy


Sustainable Reuse of Decommissioned Offshore Jacket Platforms for Offshore Wind Energy
Reference UTA-EXPL/IET/0111/2019
Scientific Area Space-Earth Interactions
Funding (PT) 41 803,50 EUR
Funding (US) 50 000,00 USD
Leading Institutions Faculty of Engineering of the University of Porto (FEUP)
Department of Civil, Architectural and Environmental Engineering, Texas Atomic Energy Research Foundation, Cockrell School of Engineering, UT Austin
Duration 12 months 15 months
Start date September 1, 2020
End date August 31, 2021 November 30, 2021
Offshore wind turbines, Renewable energy, Requalification, Fatigue, Metocean climate

Planet Earth is composed of land and water, respectively, 29.2% and 70.8%, where approximately 97.5% of the water is in our seas and oceans. The ocean is the least explored resource on our planet. In 2010, the European Science Foundation’s Marine Council predicted that, by 2050, Europe will supply up to 50% of its electricity needs from marine renewable energy. Thus, offshore renewable energy presents challenges and opportunities in particular for Portugal, with its significant resources in one of the largest sea areas in Europe. The SOS-WindEnergy project intends to evaluate metocean (meteorological and oceanographic) environment conditions and modeling of its variability using “environmental contour” approaches that will rely on measured waves and wind data in Portuguese offshore sites being considered for renewable energy generation.

The project team will bring important synergies towards addressing the problem of how to safely and responsibly use or reuse existing sites and systems in place for future offshore wind energy generation. The SOS-WindEnergy focuses on a literature review on metocean data analysis and fatigue approaches; feasibility assessments of specific support structures using metocean data; and, fatigue performance evaluation of platforms for offshore wind. The project will thus establish a methodology for fatigue performance evaluation of jacket platforms using available metocean environmental data and stochastic modeling approaches, while considering the service life of these same decommissioned structures, to be modified to support wind turbines that can support a marine renewable energy industry.

It is anticipated that the proposed work can serve as a pilot study for planned reliability analyses. The benefits to the environment are obvious; such reuse plans reduce waste and the intended future use also contributes to a cleaner and more responsible energy generation and less harm to the environment.

Key Outcomes

  • A methodology for fatigue performance evaluation of jacket platforms;
  • Publications in specialized journals and print/electronic media;
  • Activities such as two planned workshops for academic and non-academic attendees.

Papers and Communications

  • Mendes, P., Correia, J. A. F. O., De Jesus, A. M. P., Ávila, B., Carvalho, H., & Berto, F. (2020). A brief review of fatigue design criteria on offshore wind turbine support structures [JD]. Frattura Ed Integrità Strutturale, 15(55), 302–315. https://doi.org/10.3221/IGF-ESIS.55.23
  • Xin, H., Correia, J. A. F. O., Veljkovic, M., Berto, F., & Manuel, L. (2021). Residual stress effects on fatigue life prediction using hardness measurements for butt-welded joints made of high strength steels. International Journal of Fatigue, 147, 106175. https://doi.org/10.1016/j.ijfatigue.2021.106175
  • Mendes, P., Correia, J. A. F. O., Castro, J. M., Fantuzzi, N., Aidibi, A., & Manuel, L. (2021). Horizontal and vertical axis wind turbines on existing jacket platforms: Part 1 – A comparative study. Structures, 32, 1069–1080. https://doi.org/10.1016/j.istruc.2021.01.069
  • P. Mendes, J. Correia, J.M. Castro, N. Fantuzzi, D. Haselibozchaloe, L. Manuel, Horizontal and Vertical Axis Wind Turbines on Existing Jacket Platforms: A Comparative Study, SIM 2021: Congress on Structural Integrity and Maintenance, Brazil
  • P. Mendes, R. Dantas, J. Correia, N. Fantuzzi, G. Lesiuk, A. Jesus, L. Manuel, F. Berto, Probabilistic Fatigue Strength Modelling based on various statistical approaches for a Double-Side Welded Connection, SIM 2021: Congress on Structural Integrity and Maintenance, Brazil.
  • Xin, H., Correia, J. A. F. O., Veljkovic, M., Zhang, Y., Berto, F., & de Jesus, A. M. P. (2021). Probabilistic strain-fatigue life performance based on stochastic analysis of structural and WAAM-stainless steels. Engineering Failure Analysis, 127, 105495. https://doi.org/10.1016/j.engfailanal.2021.105495
  • Aidibi, A., Babamohammadi, S., Fatnuzzi, N., Correia, J. A. F. O., & Manuel, L. (2021). Stress Concentration Factor Evaluation of Offshore Tubular KT Joints Based on Analytical and Numerical Solutions: Comparative Study. In Practice Periodical on Structural Design and Construction. American Society of Civil Engineers.
  • Mackay, E., Haselsteiner, A. F., Coe, R. G., & Manuel, L. (2021). A Second Benchmarking Exercise on Estimating Extreme Environmental Conditions: Methodology & Baseline Results. In Volume 2: Structures, Safety, and Reliability. ASME 2021 40th International Conference on Ocean, Offshore and Arctic Engineering.
  • D. Haselibozchaloee, J. Correia, P. Mendes, M. Correia, A. Jesus & F. Berto (2021). A review of fatigue damage in offshore wind turbine structures, 4th International Conference on Structural Integrity. ICSI 2021, Book of Abstracts.
  • Mendes, P., Correia, J.A.F.O., Heo, T., Fantuzzi, N. & Manuel, L. (2022). Horizontal- and Vertical-Axis Wind Turbines on Existing Jacket Platforms: Part 2 – Retrotting Activities, Structures, in press.
  • Heo, T., Liu, D.P., Manuel, L., Correia, J., Mendes, P. (2022). Sustainable reuse of decommissioned jacket platforms for offshore wind energy accounting for accumulated fatigue damage, Proceedings of the ASME 2022 41th International Conference on Ocean, Offshore and Arctic Engineering. OMAE2022.
  • Vieira Ávila, B., Correia, J., Carvalho, H., Fantuzzi, N., De Jesus, A., & Berto, F. (2022). Numerical analysis and discussion on the hot-spot stress concept applied to welded tubular KT joints. Eng. Fail. Anal. Volume 135, 2022, 106092, Elsevier BV. https://doi.org/10.1016/j.engfailanal.2022.106092


2021 Annual Conference

Project Team

José Correia

Principal Investigator in Portugal (FEUP)

Lance Manuel

Principal Investigator in Austin (UT Austin)