The impact of the construction industry on the natural environment is severe, natural areas are changedinto predominantly hard solid surfaces, the energy use in the built environment is high and the industryputs huge claims on materials.
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Airborne wind energy (AWE) is an emerging renewable energy technology that uses kites to harvest winds at higher altitudes than wind turbines. Understanding how residents experience a local AWE system (AWES) is important as the technology approaches commercialization. Such knowledge can help adjust the design and deployment of an AWES to fit locals' needs better, thereby decreasing the technology's burden on people. Although the AWE literature claims that the technology affects nature and residents less than wind turbines, empirical evidence has been lacking. This first community acceptance study recruited residents within a 3.5 km radius of an AWE test site in Northern Germany. Using structured questionnaires, 54 residents rated the AWES and the closest wind farm on visual, sound, safety, siting, environmental, and ecological aspects. Contrary to the literature's claims, residents assessed the noise, ecological, and safety impacts similarly for the AWES and the wind farm. Only visual impacts were rated better for the AWES (e.g., no shadows were perceived). Consistent with research on wind turbines, residents who rated the site operation as fairer and the developer as more transparent tended to have more positive attitudes towards the AWES and to experience less noise annoyance. Consequently, recommendations for the AWE industry and policymakers include mitigating technology impacts and implementing evidence-based strategies to ensure just and effective project development. The findings are limited to one specific AWES using soft-wing kites. Future research should assess community responses across regions and different types of AWESs to test the findings' generalizability.
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Managed realignment is the landward relocation of flood infrastructure to re-establish tidal exchange on formerly reclaimed land. Managed realignment can be seen as a nature-based flood defence system that combines flood protection by the realigned dike (artificial) and restored saltmarshes (nature-based). So far, research on coastal managed realignment is primarily directed to saltmarsh restoration on formerly reclaimed land. This study focuses on the realigned dikes. The aim of this research is to characterize realigned dikes and to indicate the characteristics that offer opportunities for nature-based flood protection. We categorized 90 European coastal managed realignment projects into two realigned dike groups: (1) Newly built landward dikes and (2) Existing landward dikes of former multiple dike systems. The second group has two subcategories: (2a) Former hinterland dikes and (2b) Realignments within summer polders. For each group we present the realigned dike characteristics of a representative case study. We consider that the use of existing landward dikes or local construction material make realignment more sustainable. From a nature-based flood protection perspective, the presence of an artificial dike is ambiguous. Our results show that targeted and expected saltmarsh restoration at managed realignment does not necessarily result in a greener realigned dike design that suits for combined flood protection with restored saltmarshes. We recommend coastal managers to explicitly take combined flood protection into account in the realigned dike design and steer the topography of the realignment site to facilitate nature-based flood protection and promote surface elevation increase seaward of the realigned dike in response to sea level rise. This makes managed realignment a nature-based flood defence zone for now and for the future.
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Zuyd University and partners will develop novel coatings that contribute to a reduction in energy consumption of houses and buildings. The built environment currently consumes 46% of all energy, mainly for heating and cooling. A strong reduction is required as part of the transition towards sustainable energy. This is expressed by ambitious targets set by the Parkstad region, which has set itself the target to be energy neutral in 2040. For the Window of the Future Zuyd University (lectoraat Nanostructured Materials) and DWI (post-doc) aims to develop infrared regulating coatings that keep the heat inside in winter and outside in summer. These coatings are expected to strongly contribute to reduction of energy consumption. We will develop coating materials for application on glass windows, which are transparent for visible light to allow maximal daylight entering the building, and simultaneously regulate the transmission and reflection of IR heat. Kriya and Physee (SMEs) will advise Zuyd on technical and economic challenges related to the development of IR regulating glass windows. OMT Solutions (SME) and SGS Intron will advise on characterization and the performance validation. The need for such windows is confirmed by TNO/The Brightlands Materials Center as central challenge in their Optoelectronics program. They contribute largely to this project. Large demonstrator windows will be coated, and installed in test houses for real-life testing and quantification of the energy reduction. Zuyd (lectoraat Solar Energy in the Built Environment) will quantify the impact of smart IR regulating windows on the energy transition by comparing their impact to other available technologies, e.g. solar cells. In this quantification, Zuyd will focus on the Parkstad region. Together with Parkstad and Maastricht University (Ph.D. student), Zuyd will also quantify the socio-economic impact, and promote the societal acceptance of smart IR regulating windows.
