Nätstationer - Potential för grönytor i Helsingborgs stad?

Sammanfattning: In Helsingborg, as in many other major cities in Sweden, there is a shortage of space as green space disappears while new construction increases. The municipality of Helsingborg has a vision to be a creative, vibrant, common, global and balanced city for both people and companies by 2035. The new urbanization trend places a demand on the city's construction and planning. Furthermore, greenery has an important role both in the visual impression of a city as well as promoting ecosystem services. The question then is how to incorporate more greenery into a densified city? Öresundskraft wants to investigate whether substations can be used to increase green space in the city by adding green roofs and walls to the buildings. In Helsingborg there are about 700 substations, the purpose of which is to provide the community with energy, so the possibilities to increase the amount of green space are many. The aim of the Master Thesis is to provide an increased understanding of how substations can contribute to the vision of the municipality of Helsingborg by increasing the amount of green space in the city. In order to investigate the potential of the substations, three references corresponding to the most frequent substations of Öresundskraft are being studied. The study shows that the limitations of constructions in terms of load capacity, size, maintenance and cost place additional demands on how an implementation can be carried out. Through a literature study and exploratory study, possible green solutions have been developed. The study shows that the building models are suitable for applying green roofs and walls at the substations. The developed solutions are recommendations for how Öresundskraft can implement green solutions to existing substations in the municipality of Helsingborg. When choosing a solution, it is recommended that sedum should be applied to all roof structures and metal wire should be anchored on the free wall surfaces. The recommended vegetation for the wall solution is Aristolochia macrophylla and Fallopia baldschuanica. However, the wire solution cannot be applied to steel structures where further studies are required. A cost estimate shows that the implementation of proposals for all substations of Öresundskraft in Helsingborg involves an investment cost of SEK 27 million, excluding maintenance and certain assembly costs. Finally, the Master Thesis has created an understanding of how substations can contribute to the vision of the municipality of Helsingborg by increasing the amount of green space in the city. For Helsingborg, an implementation means that the city's expression is improved by a recreational value for inhabitants in the city. Although the constructions are small, the Master Thesis shows that the total area corresponds to approximately four football fields, an area that is impossible to apply in a densified city. In conclusion, substations can contribute to the City Plan from 2017 of the municipality of Helsingborg and the vision of the Green Structure Program. Therefore, substations is a contribution to the great challenge of building a denser and at the same time greener city.