Since the deployment of the first offshore wind installations, controversies have emerged regarding their economic and environmental costs and benefits.<\/p>\n
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In the face of the climate emergency, the rapid reduction of greenhouse gas emissions is essential. As electricity generation from fossil fuels is one of the main sources of CO\u2082 emissions, the energy transition towards renewable energy plays a key role in achieving carbon neutrality by 2050.<\/p>\n
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Offshore<\/em> wind energy, meaning wind energy generated at sea, appears to be a strategic solution to meet the growing demand for decarbonized electricity, diversify the energy mix and strengthen national energy autonomy. Nevertheless, despite its climate benefits, offshore wind energy requires substantial infrastructure that can disrupt the environment in which it is installed.<\/p>\n <\/p>\n <\/p>\n Focus on the impacts of offshore wind installations on biodiversity<\/strong><\/p>\n <\/p>\n Offshore<\/em> wind energy therefore poses major environmental challenges, particularly regarding biodiversity: disturbances in the water column and to benthic habitats, meaning seabed environments, noise emissions that may harm marine mammals, as well as disturbances in the air column with collision risks for birds and bats, etc.<\/p>\n <\/p>\n Numerous research studies have therefore sought to assess the positive and negative impacts of these infrastructures on biodiversity and the functioning of marine ecosystems, generating a substantial body of scientific literature. These impacts vary greatly depending on the life cycle of the installation, its location, the type of turbine used, the type of foundations and anchoring systems, associated structures, and the species present that interact with these infrastructures. These installations are mainly located within wind farms, of varying size and at varying distances from the coast. However, coastal areas are both zones of high biodiversity and culturally rich territories where the sharing of land, sea and resource uses represents a major challenge.<\/p>\n<\/div>\n <\/p>\n <\/p>\n In accordance with Target 15 of the Kunming-Montreal Global Biodiversity Framework, all economic actors must reduce their negative impacts on biodiversity, including the impacts of solutions designed to mitigate climate change. Energy production, like other human activities, must therefore transition towards more sustainable practices while preserving biodiversity. To support this transition and reduce the impacts of offshore wind energy, recommendations are proposed for the scientific community, offshore wind developers and operators, and governments.<\/p>\n <\/p>\n Among these measures are:<\/strong><\/p>\n <\/p>\n <\/p>\n Available data show that disturbances during critical periods can lead to notable ecological effects, such as reduced reproductive success or changes in foraging behavior. In response, carefully timed interventions appear to be a promising preventive tool. This approach requires detailed knowledge of local species and rigorous ecological monitoring.<\/p><\/div>\n<\/div>\n <\/p>\n <\/p>\n In the long term, these approaches will not only significantly reduce the ecological risks associated with offshore wind energy, but also improve the social and economic acceptance of these projects from a long-term sustainability perspective.\n<\/div>\n<\/div>\n <\/p>\n Identified actions include lighting management<\/strong>, the introduction of strong visual contrasts<\/strong>, the selection of less attractive colors<\/strong>, and the adaptation of turbine physical dimensions<\/strong>, such as ground clearance or rotor diameter.<\/p>\n <\/p>\n These measures, largely derived from interdisciplinary research combining sensory ecology, engineering and flight biomechanics, still require empirical validation in marine environments.<\/p>\n <\/p>\n For operators<\/strong>, these elements provide avenues for technical innovation compatible with safety requirements and regulatory constraints. For scientists<\/strong>, they open an essential field of applied research to evaluate species\u2013infrastructure interactions. For decision-makers<\/strong>, they reinforce the idea that designing biodiversity-friendly wind farms requires the careful integration of ecological knowledge into technical choices.<\/p>\n <\/p>\n In this perspective, turbine visibility emerges as a complementary lever for risk reduction, to be considered alongside other more structural measures such as micro-siting<\/em>, curtailment or spatial planning.<\/div>\n<\/div>\n <\/p>\n In this context, deterrence devices should be considered potential complements to more established measures (spatial planning, micro-siting<\/em>, curtailment). Their future development will depend on investment in applied research, closely linked to ecological knowledge of the species concerned and to offshore operational constraints. For developers and decision-makers, this is therefore an area to monitor closely, by supporting pilot projects and scientific validation programmes in order to determine whether certain solutions can be operationally integrated into the next generations of offshore wind farms.<\/strong><\/div>\n<\/div>\n <\/p>\n However, for this strategy to become a real lever for reducing impacts on birds and bats, it requires the establishment of robust and continuous ecological monitoring protocols capable of identifying the most problematic turbines. Yet the availability of detailed offshore data remains a major challenge today.<\/strong> The success of repowering as a mitigation tool will therefore depend on increased investment in offshore environmental monitoring and on governance frameworks that encourage the active use of these data in project reconfiguration phases.<\/div>\n<\/div>\n <\/p>\n Their implementation relies on a variety of complementary approaches: habitat restoration, targeted conservation actions and strategic planning.<\/p>\n <\/p>\n These measures must be carefully planned, adapted to the species concerned and evaluated over the long term to ensure that they effectively compensate for the ecological losses generated. Initiatives such as the removal of invasive predators, the creation of protected breeding colonies or the funding of alternative conservation programmes offer concrete pathways to strengthen the resilience of affected populations.<\/p>\n <\/p>\n However, their success is associated with significant uncertainty and depends on strict conditions: rigorous monitoring, interregional coordination and integration into a broader environmental strategy. It is therefore essential that compensatory measures are not perceived as a substitute for avoidance efforts, but rather as a targeted complement, implemented with caution, transparency and within a long-term conservation perspective.<\/p><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":" Since the deployment of the first offshore wind installations, controversies have emerged regarding their economic and environmental costs and benefits. In the face of the climate emergency, the rapid reduction of greenhouse gas emissions is essential. As electricity generation from fossil fuels is one of the main sources of CO\u2082 emissions, the energy transition […]<\/p>\n","protected":false},"author":10,"featured_media":29072,"parent":36062,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-36097","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nRecommendations to reduce risks to biodiversity<\/h3>\n
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