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Latest Issue
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- Category: Articles
Modelling of Wind, Wave and Wakes for Offshore Wind EnergySixteen offshore wind energy lease areas are currently under active development along the US east coast and six more in the New York Bight were recently auctioned for bids of nearly $ 4.4 billion. Observational data is sparse in this region so analyses of numerical simulations pertinent to operating conditions, power and wake production are summarised and used to highlight processes that are worthy of further investigation.
By Rebecca J. Barthelmie, Jeanie A. Aird, Frederick Letson and Sara C. Pryor, Cornell University, USA
- Category: Articles
Four Strategies for Major Component ReplacementThis article details the current state of O&M in floating wind with a particular focus on major component replacement strategies. It summarises year-long discussions held by the expert members of the World Forum Offshore Wind.
By Ilmas Bayati, Peak Wind, Denmark
- Category: Articles
Effects of Erosion on Wind Turbine Leading Edge and CountermeasuresIn recent years, operators of wind farms have become aware of an annoying effect reducing the performance of their turbines – the impact of weather-induced erosion at the rotor blade surface, mainly at the leading edge (Figure 1). Offshore wind parks in particular are impacted, driven by droplets of water hitting the blades with high velocity.
By Jan Liersch and Bastian Sundermann, Key Wind Energy, Germany
- Category: Articles
In Situ Method Makes Repairs More Economically FeasibleA new invention for repairing yaw rings in situ is expected to make a contribution to extending the lifespan of wind turbines. Developed by Danish machining expert CNC Onsite, the patented system means the yaw ring does not need to be replaced, eliminating the expensive, time-consuming and potentially detrimental disassembly of the rotor and nacelle.
By Søren Kellenberger, Sales Director, CNC Onsite, Denmark
- Category: Articles
Technology Inspired by Large Seabirds Leads to Increased Lift at Low Wind SpeedSince early 2019, the Albatrozz consortium has been active in the application of a principle that mimicks the landing behaviour of the albatross to increase the energy production of wind turbines especially at low wind speeds. Years of academic research have led to a patent and subsequently to governmental stimulation funding, and now the consortium is almost ready to do full-scale testing on a Vestas V52 wind turbine. This article describes the background story including technical details, plans and outlook.
By Eize J. Stamhuis, Albatrozz, the Netherlands
- Category: Articles
Bird Detection and Monitoring SystemsAs part of efforts to combat climate change, there is rapid growth in renewable energy production around the world. However, bird collisions with wind turbines are likely to be an unfortunate side effect of any effort to ramp up renewable electricity supply.
By Orfanos Vasilis, nvisionist, Greece
- Category: Articles
Simplifying Design, Construction and InstallationThe wind industry is rapidly growing and taking steps towards becoming a significant source of power. But, as the discussion around climate change becomes more serious, floating wind companies need to think smarter. We are starting to see many companies propose solutions that take their lead from the offshore oil and gas industry, but this approach has challenges related to material costs, scalability, speed to market, and its overall impact on the environment. As a result, there is not yet a clear technology leader. Alternatively, deep-water wind farms are ideally positioned to become the next frontier for achieving net zero carbon by 2050.
By Jon Salazar, Founder and President, Gazelle Wind Power, Ireland
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