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Co-location opportunities for renewable energies and aquaculture facilities in the Canary Archipelago

机译：加那利群岛的可再生能源和水产养殖设施在同一地点的机会

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Integrated Offshore Management is a future challenge for the development of sustainable growth of marine economies. The progressive increase in worldwide demands for marine-based renewable energies combined with higher market demands for aquaculture-based food requires better knowledge on marine spatial planning tools that allow optimizing the use of this space for different purposes. That is the case of energy production and aquaculture activities, in which synergistic and competitive interactions must be thoroughly analyzed at an appropriate scale. The present study proposes a specific methodology that integrates several selection criteria responding simultaneously to the needs and limitations of marine aquaculture and renewable energy production, aiming to identify opportunities for the co-location of these activities. The methodology was implemented over 25 km of the coastal fringe of four islands of the Canary Archipelago, applying a multi-criteria approach based on independent probabilistic suitability and mapping analysis (time series of 20–30 years) for:(i)wind and wave energy production potential;(ii)structural requirements for aquaculture cages and energy devices;(iii)limits for operation and maintenance activities;(iv)feasibility to transport energy to the grid; and(v)biological requirements for eight species of fish. A stepwise procedure was carried out, including: 1) suitability for wave, wind and aquaculture activities, with spatial resolution of 0.01° (0–1 probability scale); and 2) integrated co-location mapping, considering suitability for each activity. Opportunities for the co-location of wind and aquaculture farms were identified in the southeastern portion of the islands, while in Tenerife and Fuerteventura wave-wind devices co-location opportunities were identified. Thus, opportunities for marine aquaculture and renewable energy were demonstrated in the present case study applying a preliminary assessment of the potential exploitation of these resources.
机译：综合离岸管理是发展海洋经济可持续增长的未来挑战。全球对海洋可再生能源的需求不断增长，加上对水产养殖食品的更高市场需求，要求对海洋空间规划工具有更深入的了解，以使该空间用于不同目的的优化利用。能源生产和水产养殖活动就是这种情况，其中必须以适当的规模彻底分析协同和竞争相互作用。本研究提出了一种综合了几种选择标准的特定方法论，这些选择标准同时满足了海洋水产养殖和可再生能源生产的需求和局限，旨在为这些活动在同一地点找到机会。该方法在加那利群岛四个岛屿的沿海边缘25平方公里的范围内实施，采用了基于独立概率适用性和制图分析（20-30年的时间序列）的多准则方法，适用于：（i）风浪能源生产潜力;（ii）水产养殖网箱和能源装置的结构要求;（iii）操作和维护活动的限制;（iv）将能量输送到电网的可行性; （v）八种鱼类的生物学要求。进行了逐步操作，包括：1）适用于波浪，风和水产养殖活动，空间分辨率为0.01°（0-1概率标度）；和2）集成的共址映射，考虑每个活动的适用性。在群岛的东南部确定了风电场和水产养殖场并置的机会，而在特内里费岛和费埃特文图拉岛则确定了波风装置共置的机会。因此，在本案例研究中，通过对这些资源的潜在开发进行了初步评估，证明了海洋水产养殖和可再生能源的机会。

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