Research and development

One of Stockholm Royal Seaport's targets is to be fossil-free by 2030. A systems analysis of Loudden energy supply has been funded by the Swedish Energy Agency. Various scenarios are analysed, as well as the potential to optimise energy use and the generation of renewable energy in the city. The study will contribute to an energy system that is open to:

• using local infrastructure for energy storage
• future technical development
• allowing business models for local energy exchanges

• allowing several different energy sources.

The results will be used as support for the continued planning of the Loudden subarea.

Image: Shutterstock

The City of Stockholm's wastewater management has a high degree of purification with low climate impact. But the wastewater's resources, such as heat and nutrients, are not optimally reused. By separating the flow into food waste, toilet water and other wastewater, the utilisation of energy and resources is optimised. Ongoing research projects in Stockholm Royal Seaport are shedding light on this from different perspectives: MACRO: The three-year MACRO project, financed by Vinnova, is run by the City of Stockholm and will raise knowledge of how to plan and construct a source-separating wastewater system in an urban environment. The results will then be used as support for a decision to implement a pilot project. Helsingborg, Västerås, Knivsta are participating in addition to the City of Stockholm, as well as academia, trade associations and suppliers. CNCA: Source-separating wastewater systems enable the utilisation of high-quality plant nutrients, while increasing the possibility of reusing waste heat at property level and the potential for biogas. A pilot study financed by the Carbon Neutral Cities Alliance Innovation Fund is being conducted that describes the scenarios, potential and overall business model for source-separating wastewater systems in an urban environment.

Over SEK 13 million in municipal funds have been granted for new climate projects in Stockholm Royal Seaport that help to meet the City of Stockholm's climate targets and reduce CO2 emissions. Projects that have received financing are for purposes including logistics and waste. One subproject concerns the transport of contaminated or surplus materials by sea instead of road, which would reduce transport costs and cut CO2 emissions by half. An innovation procurement was conducted during the year. The second subproject is for a newly developed litter bin that makes it possible to handle household rubbish from the contractor sheds through the existing vacuum waste collection system, which makes waste management more efficient and improves the work environment.

The soil and water areas along Kolkajens quays are contaminated. The costs for excavating or dredging this sediment, and treating it externally, are high. Substantial financial savings can be achieved by developing methods and technologies to treat contaminated soil on site. An innovation project for the development, testing and application of new technology is under way for future development phases, where there is contamination in deeper soils and in groundwater.

150 families can see and control their energy use in real time in the Smart Energy City research project. The goal is to find solutions that make it possible to use electricity, water and heat in a smarter way. The washing machine, for example, can be programmed to run when the climate impact or price is lower. Will there be any difference if households can see their consumption in terms of C02 emissions or money? The project was officially opened in November by the Minister for Enterprise and Innovation, Mikael Damberg, and can be followed at www.smartenergycity.se.