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Assessment on the Added Value of Marine Multi-Use within UNITED Pilots

Cover page of a policy brief dated September 19th, 2023, titled 'POLICY BRIEF: Assessment on the added value of Marine Multi-Use within UNITED pilots'. The background features a soft-focus image of wind turbines at sea. The EU flag is present with a disclaimer about funding from the European Union's Horizon 2020 research and innovation programme. Authors Manuel Lago - ECOLOGIC, Youssef Zaiter - ACTeon, and editors Ivana Lukic, Agnese Cosulich from Submariner Network for Blue Growth EWIV are credited.

© UNITED project


Assessment on the Added Value of Marine Multi-Use within UNITED Pilots


Lago, Manuel and Youssef Zaiter 2023: Assessment on the added value of Marine Multi-Use within UNITED pilots. Policy Brief of the Horizon 2020 project "Multi-use Offshore Platforms Demonstrators for Boosting Cost-effective and Eco-friendly Production in Sustainable Marine Activities" (UNITED).

As competition for, and interest in, use of ocean space increases, a need for management arises to optimize activity in marine areas. This policy brief provides a comprehensive consideration of the economic efficiency of marine multi-use (MU) by weighing the pros and cons of individual use options against potential MU combinations.

Under the UNITED project, an economic impact assessment of ocean MU was performed under the context of four different pilot projects: German, Belgium, Denmark, and Greece, with the objectives of determining whether MU colocations are worthwhile and investigating the added value for existing marine uses to profit from the combination of activities in a MU setting. MU combinations include activities such as offshore wind energy, aquaculture, and tourism/recreation. The results demonstrate that, compared to single-use, MU approaches can have positive environmental, economic and social impacts, such as more efficient use of marine space, the creation of added value, the reduction of greenhouse gases and the improvement of habitats and fish stocks. Thus, MU is likely to deliver economic benefits of greater magnitude than the single-use options alternatives, however further research, policy support, financing opportunities, and regulatory frameworks are needed to develop the potential of MU in maritime spatial planning.

As pressure increases to improve management measures for an already crowded marine space, marine multi-use offers a potential method of optimizing ocean space for maximized social benefit.


More content from this project

Youssef Zaiter (ACTeon)
8 pp.
Project ID
Offshore Wind Farm, OWF, Aquaculture, Tourism, Marine Citizen Science, Ecosystem Restoration, Blue Economy, CO2 Sequestration, Renewable Resources, Maritime Spatial Planning
Europe, Belgium, Denmark, Germany, Greece