5
fractions
Paper, plastic packaging, residual waste, food waste, and litter from public bins
Stockholm Royal Seaport
Built and further developed according to Hammarby Sjöstad's sustainability heritage. In Norra Djurgårdsstaden, innovative comprehensive solutions are tested and developed that contribute to a reduced climate impact and a more resource-efficient city - in the district there are both pneumatic waste collection and our innovation Envac ReFlow.
- Location
- Stockholm, Sweden
- Client
- Stockholm Water and Waste
- Segment
- Cities
- Launch
- 2012
About
Stockholm Royal Seaport (SRS) is one of Europe’s largest urban development projects, transforming former industrial areas into vibrant, sustainable residential and business districts.
By 2030, SRS will include at least 12,000 new homes and 35,000 workplaces, all seamlessly connected to Envac’s advanced waste collection system—one of several innovative environmental technologies shaping the area’s green profile.
Envac was chosen for its expertise in sustainable waste management, developed through projects such as Hammarby Sjöstad. The system features user-friendly, self-emptying inlets throughout the district, ensuring that waste is collected easily and efficiently and transported to a robust underground terminal. This terminal, built in a rock chamber for maximum durability, is equipped with a heat exchanger that recycles energy from the system back into the facility.
A weighing system maximises the fill level of containers before they are emptied, reducing unnecessary collections. As a result, waste collection vehicle traffic has been reduced by 90%, eliminating the need for manual waste handling and contributing to a safer, cleaner, and more resource-efficient urban environment.
400
inlets
conveniently placed for easy access
100
self-emptying public litter bins
in public areas
55%
less system downtime
after introducing ReFlow
Envac ReFlow in SRS
Envac ReFlow is an innovative digital solution that complements Envac’s pneumatic waste collection system and helps cities achieve their climate and recycling goals. With the industry’s first smart meter, the system collects data via RFID-tagged inlets, providing users with feedback on recycling and helping to optimise operations.
The platform visualises waste flows, offers real-time feedback, and guides users to alternative inlets. Faults can be easily reported via the app or QR code, and many issues are resolved automatically. User-friendly guides and tips provide tailored information, making recycling easier and more efficient.
Reduce, Reuse, Recycle – successful results from Norra Djurgårdsstaden
The “Reduce, Reuse, Recycle” project in Norra Djurgårdsstaden has led to reduced waste and increased recycling with the help of Envac ReFlow. The results show that ReFlow drives behavioural change, improves recycling quality, and reduces emissions – and the project continues to develop.
- 35% of households have joined ReFlow, surpassing the target of 25%.
- 8 out of 10 users are satisfied, over half feel more motivated to sort waste, and 67% have changed their recycling habits.
- Waste analyses show 19% fewer incorrectly sorted packaging and newspapers, three times less food waste in the plastics fraction, and 10% more correctly sorted plastic.
- Fault reporting via the app and QR codes is widely used.
More about Stockholm Royal Seaport
Collaboration and innovative thinking open the door to creative solutions and encourage engagement. In this way, Norra Djurgårdsstaden is driving the development of the next generation of sustainable urban districts. Within the Norra Djurgårdsstaden urban development project, under Agenda 2030, five sustainability goals are being pursued, together contributing to all of the UN’s global goals for sustainable development.
Stockholm and Norra Djurgårdsstaden won the award for Best Sustainable Urban Development Project in the “Sustainable Communities” category, presented at the UN Climate Conference in Paris 2015 by the C40 Cities Climate Leadership Group—a network connecting more than 80 of the world’s megacities.
The various innovations and projects within Norra Djurgårdsstaden have also been recognised with the ROT Prize and the Landscape Architecture Prize.
Resource-efficient holistic solutions contribute to reduced climate impact, increased climate adaptation, and prepare Norra Djurgårdsstaden for future challenges.
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Hammarby Sjöstad – The Sustainable City
After an environmental programme was drawn up for Hammarby, including rigorous sustainability targets and the most innovative environmental solutions as part of what would later become known as the ‘Hammarby Model’, Envac was appointed to demonstrate the value that pneumatic waste collection add to a contemporary urban environment.