Een interview met City-zen subsidiënt in Plus Magazine (oktober 2018) over zijn ervaring. "Van het gas afgaan vraagt meer dan alleen een nieuwe ketel". Lees het interview en 3 opties voor een gasloze woning.
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Waag Open: Electric Garden

In de hoop dat technologie ons uit de klimaatcrisis redt, worden er miljoenen geïnvesteerd in technologieën op het gebied van kunstmatige intelligentie. Tegelijkertijd genereert de hele IT-industrie nu al 900 Megaton aan CO2 per jaar. Dat is zeven keer zoveel als de uitstoot van heel Nederland in 2023. Technologische innovatie en een gezond ecosysteem lijken niet samen te gaan. Kunnen technologie en natuur samenwerken bij het redden van onze planeet?
Kunstenaar Sunjoo Lee experimenteert in haar project ‘Electric Garden’ met een elektriciteitsproducerende tuin. Zolang het ecosysteem in haar tuin bloeit, kan elektriciteit worden opgewekt. Tijdens deze Waag Open in juli maken we een eigen Electric Garden in de Waag. In een boeiende workshop neemt Sunjoo je mee in de wereld van regeneratieve technologie en leer je hoe de natuur als duurzame energiebron kan fungeren.
Programma
19:15 - 19:30 uur | Inloop |
---|---|
19:30 - 19:45 uur | Welkom & introductie |
19:45 - 21:30 uur | Workshop Electric Garden |
Over Electric Garden
Electric Garden verkent op creatieve wijze de mogelijke samenwerking tussen natuurlijke ecosystemen en digitale systemen. De tuin produceert elektriciteit via het metabolisme van anaerobe bacteriën die in natte grond leven, met behulp van een technologie die Microbial Fuel Cells wordt genoemd. Elke container werkt als een batterij en is uitgerust met elektroden die de elektronen oogsten die door de bacteriën worden uitgezonden. De planten en insecten in de tuin voeden de bacteriën. Zolang het ecosysteem bloeit, kan elektriciteit worden opgewekt.
Over Sunjoo Lee
Sunjoo Lee is een interdisciplinair kunstenaar. Haar werk bevindt zich op het snijvlak van kunst, technologie en ecologie. Ze is gevestigd in Nederland en Zuid-Korea en is gefascineerd door het gebruik van elektronica en digitale hulpmiddelen die het menselijk belang overstijgen. In haar werk verkent ze onderwerpen als meer dan menselijke filosofie, emergentie, biomimicry, toekomstige vormen van symbiose en permacomputing.
Waag Open
Elke eerste donderdagavond van de maand opent Waag haar deuren! Kom langs om te discussiëren en te doen. Want we gaan niet alleen in discussie over maatschappelijke thema's en de toekomst – je leert daarnaast ook altijd iets praktisch. Iets dat je altijd al hebt willen uitproberen, zoals de 3D-printer in het FabLab, of juist iets dat je nooit had verwacht, zoals uitpluizen hoe DNA in elkaar zit in ons biotech-lab. Waag Open vindt plaats in de maakplaatsen op de eerste en tweede verdieping van het historische Waaggebouw op de Nieuwmarkt.
Toegankelijkheid
Mocht je krap bij kas zitten en wel graag aan dit evenement willen deelnemen, neem dan contact op met sanna [@] waag [punt] org.
Enabling the Future with High Tech

Societal challenges such as climate change, geopolitical security issues, and an ageing population are widely recognised. However, the fact that photonic, nano, and quantum technology can provide solutions to these global problems remains largely unknown to many.
Addressing these major dilemmas requires an approach in which technology plays a central role. Key enabling technologies in general – and photonics, nano, and quantum technology in particular – are therefore in the spotlight when it comes to the strategic plans of businesses and governments.
These technologies enable, for instance, secure communication, the development of smarter and more cost-effective sensors, and the creation of highly targeted medicines.
Who is it for?
This symposium is intended for professionals working in industry, public institutions, and knowledge organisations. Potential attendees include:
🔹 Scientists and researchers – Academics and researchers in physics, electrical engineering, materials science, and nanotechnology
🔹 Engineers and technologists – Professionals working on optical systems, semiconductors, quantum computing, and nanotechnology
🔹 Students and PhD candidates – Master's and PhD students in physics, computer science, and engineering
🔹 Industry experts and entrepreneurs – Companies and startups in high-tech sectors such as photonics, quantum computing, telecoms, and sensor technology
🔹 Government and policymakers – Organisations driving innovation, such as ministries, EU programmes, and investment funds
🔹 Investors and venture capitalists – Investors interested in deep-tech startups and the commercial applications of these technologies
Sign up right now - admission is free!
Demoday 27# District heating and resident participation in the municipality of Haarlemmermeer

The municipality of Haarlemmermeer is actively working on the realisation of the energy transition in the municipality by, among other things, focusing on sustainable heat supplies. As part of this, a heat initiative has been started in the village of Rijsenhout (east of Haarlemmermeer). This initiative has not been taken up by the market in the past. This has led the municipality to want to take a more active role in the development of District heating in which resident participation is a crucial factor.
During the Knowledge- and Demodag on 13th of March (2025), Kelly Winters and Sophie Keijzer (Hieroo) led a session with the participants that looked at similar successful processes in the past of realising a heat network. The central questions were: What was the success and why was it a success?
Session structure and focus
During the session, the participants split into two groups. Similar processes were then discussed in the two groups in which the success factors of the realisation of energy transition projects were examined. An important example that was discussed in the session was the Schoonschip project in Amsterdam North. This project is a sustainable initiative in which residents have researched how they can live on the water in a circular and sustainable way. This resulted in a community of 46 houseboats that share energy with each other via a Smart Grid that’s cheaper and more efficient.
Outcomes and insights
During the session, various strategies were discussed to strengthen resident participation and make heat network initiatives successful. The most important points from the discussions are:
1. Composition of the initiator group: A diverse and enthusiastic group is crucial. In the Schoonschip project, the core of the success was a group of pioneers who complemented each other in creativity and expertise. Such a group can also be formed in Rijsenhout if they are properly guided and supported.
2. The role of the municipality: The municipality must be aware of the distrust that residents often have towards government institutions. Using an external intermediary or an independent entity can help to reduce this mistrust.
3. Reward and inspire: One way to involve residents in a low-interest topic such as energy is to reward them. Examples are setting up competitions, the use of ambassadors or energy coaches and the organisation of events. Linking opportunities, for example by combining energy transition with social goals such as combating energy poverty, can also play an important role.
4. Using the right moment: An important lesson from the Schoonschip project is to use external circumstances to arouse interest. A crisis, such as rising energy costs or limited energy production, can turn a low interest topic into a high interest topic for people.
5. Governance and structure: A solid Governance structure is essential. The municipality can play a role as a project manager by setting clear deadlines and formulating requirements. This helps both initiators and residents to keep focus and take steps towards concrete results.
Follow up
Do you have a tip to help the municipality of Haarlemmermeer with their district heating plans? Or do you have a question about this project? Contact Ouassim at Ouassim@amsterdaminchange.com or Noor at Noor@amsterdaminchange.com. Later this week on 27th of march, we'll dive into the technical problems that district heating poses, when there just isn't enough space in the underground to build it. If you would like to know more about this, let us know.