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An ocean of opportunities
The need to produce more energy from renewable sources is a challenge that involves scientists of different disciplines to develop novel technologies. Taking advantage of solar radiation to produce green energy is a consolidated option with one of the most effective technologies, however the main drawback is the need of large surface areas. Since the land availability is scarce for large solar plants, the surface of the oceans offers an interesting opportunity. This approach raises some important technical questions that also include biological variables, such as biofouling pressure.
SMART APPROACH
The innovative concept involved lightweight floaters hosting photovoltaic panels, able to carry the quantity of materials needed for a valuable energy production and cost. Such a light construction has beneficial advantages in terms of production, transport, installation and maintenance. However, it needs the robustness and durability to withstand hostile environments for any material.
BIOFOULING RISK AT LOWEST
In this context, ENDURES played an important role in determining the risk of marine organisms that colonise surfaces in contact with water. Such a risk can result in material failure, reduction of the energy production, or increase the structures’ weight causing partial sinking. Biofouling monitoring evaluation is an important aspect for developing the most appropriate protective strategy, together with the material selection to substantially extend the structures’ lifespan. In the harbour of Den Helder, materials were tested in combination with different fouling control tools. Samples and elements of the floating structures were exposed to the sea. It was exciting to see how the selected materials were responding differently submitted to solar radiation, waves and wet and dry periods. ENDURES’s more than 50 years of experience in multidisciplinary knowledge was fundamental to face this new offshore challenge.
Alessio Di Fino
