The Johan Cruijff ArenA (JC ArenA) is a big events location in Amsterdam, where national and international football matches, concerts and music festivals take place for up to 68,000 visitors. The JC ArenA is already one of the most sustainable, multi-functional stadia in the world and is realizing even more inspiring smart energy solutions for the venue, it’s visitors and neighbourhood. The JC ArenA presents a complex testbed for innovative energy services, with a consumption of electricity comparable to a district of 2700 households. Thanks to the 1 MWp solar installation on the roof of the venue, the JC ArenA already produces around 8% of the electricity it needs, the rest is by certified regional wind energy.Within the Seev4-City project the JC ArenA has invested in a 3 MW/2.8 MWh battery energy storage system, 14 EV charging stations and one V2G charging unit. The plan was to construct the 2.8 MWh battery with 148 2nd life electric car batteries, but at the moment of realisation there were not enough 2nd life EV batteries available, so 40% is 2nd life. The JC ArenA experienced compatibility issues installing a mix of new and second-life batteries. Balancing the second-life batteries with the new batteries proved far more difficult than expected because an older battery is acting different compared to new batteries.The EV-based battery energy storage system is unique in that it combines for the first time several applications and services in parallel. Main use is for grid services like Frequency Containment Reserve, along with peak shaving, back-up services, V2G support and optimization of PV integration. By integrating the solar panels, the energy storage system and the (bi-directional) EV chargers electric vehicles can power events and be charged with clean energy through the JC ArenA’s Energy Services. These and other experiences and results can serve as a development model for other stadiums worldwide and for use of 2nd life EV batteries.The results of the Seev4-City project are also given in three Key Performance Indicators (KPI): reduction of CO2-emission, increase of energy autonomy and reduction in peak demand. The results for the JC ArenA are summarised in the table below. The year 2017 is taken as reference, as most data is available for this year. The CO2 reductions are far above target thanks to the use of the battery energy storage system for FCR services, as this saves on the use of fossil energy by fossil power plants. Some smaller savings are by replacement of ICEby EV. Energy autonomy is increased by better spreading of the PV generated, over 6 instead of 4 of the 10 transformers of the JC ArenA, so less PV is going to the public grid. A peak reduction of 0.3 MW (10%) is possible by optimal use of the battery energy storage system during the main events with the highest electricity demand.
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Het Urban Technology onderzoeksprogrammavan de Hogeschool van Amsterdam (HvA) doet praktijkgericht onderzoek voor de omschakeling naar eencirculaire stad. Eén van de factoren die hierbij een rol spelen is hoe producten circulair ontworpen kunnen worden. In een aantal onderzoeksprojecten wordt door de HvA specifiek gekeken naar het gebruik van lokale reststromen om circulaire producten te ontwerpen. Onder meer aan de hand van een wel heel bijzondere reststroom: de in 2017 afgedankte stadionstoelen van de Amsterdam ArenA. In Product Magazine 5/2017 verscheen deel 1 waarin de achtergrond van dit onderzoek is besproken en suggesties zijn gedaan voor stoelontwerpen op basis van upcycling. In deel 2 komen de ontwerpers zelf aan het woord.
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Confronted by more and more global sustainabilityrelated challenges, society is increasingly aiming for a circular economy. Wouldn’t it be ideal if we could contribute to an economic model with closed loops, where products and materials that are at the end of their functional life are reused in new products and systems? As the Netherlands aims to have a fully circular economy (i.e., zero net waste) by 2050, circularity is also a critical theme for the Amsterdam Metropolitan Area. ‘Circular City’ is one of the main urban challenges of the Urban Technology research programme of the Amsterdam University of Applied Sciences (AUAS). Its chair of Circular Design & Business and its research group on Digital Production collaborate with companies, lecturers and students on a range of applied research projects in order to advance the knowledge around circular design and business model strategies making use of digital production to encourage the local reuse of discarded urban materials. Amsterdam ArenA, home base of the Ajax football team and a major concert and events venue, is replacing all stadium seats in the run-up to the European Football Championship in 2020 (UEFA Euro 2020), and wishes to do so in a socially responsible manner. With that purpose, Amsterdam ArenA engaged the expertise of the Urban Technology research programme at the AUAS to study the viability reusing the old seats in a circular manner. The research started from the assumption that these discarded seats not only form a large and relatively homogeneous waste stream, but also have an emotional value that can potentially raise their economic value, beyond that of the material alone. For the AUAS this was an important case study, because the Amsterdam ArenA aspires to be a stage for sustainable innovations, reduce its environmental impact and stimulate the local economy. This project could serve as an example for other stadiums and public buildings with substantial waste streams on how to handle discarded products, and rethink how they can prevent waste in the future. With this mission, the AUAS lined up a team of experts on circular design, digital production, business modelling and impact studies to carry out a comprehensive multi-disciplinary study.
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Het urban technology onderzoeksprogramma van de hogeschool van Amsterdam (HvA) doet onderzoek voor de omschakeling naar een circulaire stad. Een van de factoren die hierbij een rol spelen is hoe producten circulair ontworpen kunnen worden.
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De oplossing voor vraagstukken in de publieke ruimte wordt doorgaans in fysieke maatregelen gezocht. Dat is een kostbare aangelegenheid. Er zijn nu ook nieuwe middelen om de publieke ruimte te versterken. Frank Suurenbroek, Ivan Nio en Martijn de Waal van de Hogeschool van Amsterdam (HvA) onderzoeken hoe interactieve objecten de openbare ruimte aangenamer kunnen maken voor de gebruiker. De ArenA Boulevard vormt hiervoor de proeftuin.
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Het Urban Technology onderzoeksprogrammavan de Hogeschool van Amsterdam (HvA) doet praktijkgericht onderzoek voor de omschakeling naar eencirculaire stad. Eén van de factoren die hierbij een rol spelen is hoe producten circulair ontworpen kunnenworden. In een aantal onderzoeksprojecten wordt door de HvA specifiek gekeken naar het gebruik van lokalereststromen om circulaire producten te ontwerpen. Onder meer aan de hand van een wel heel bijzonderereststroom: de in 2017 afgedankte stadionstoelen van de Amsterdam ArenA. In Product #5 / 2017 en Product#2 / 2018 verschenen de eerste twee delen waarin de achtergrond van dit onderzoek is besproken en waarinsuggesties voor nieuwe stoelontwerpen op basis van upcycling en recycling gedaan zijn.In dit derde en laatste deel richten we ons op de consument. We gaan in op de vraag hoe circulaireproducten door de consument gewaardeerd worden en welke rol de herkenbaarheid
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What Moves People: Sustainable Travel to Events at Arena PoortToday over 50% of the event goers who are going to a venue at the Poort are travelling by car. Unfortunately this has a big downside for the environment.This interactive experience map presents opportunities in which event goers can be stimulated to travel more sustainably. It shows journey of an event goer traveling to a venue at the Arena Poort. The experience map is based on several interviews, user trips and user tests done by students of the AUAS for the research group Creative Media for Social Change. In the booklet you can read more about the student solutions and the project.
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PV systems are used more and more. Not always is it possible to install them in the optimal direction for maximum energy output over the year. At the Johan Cruijff ArenA the PV panels are placed all around the roof in all possible directions. Panels oriented to the north will have a lower energy gain than those oriented to the south. The 42 panel groups are connected to 8 electricity meters. Of these 8 energy meters monthly kWh produced are available. The first assignment is to calculate the energy gains of the 42 panel groups, and connect these in the correct way with the 8 energy meter readings, so simulated data is in accordance with measured data.Of the year 2017 there are also main electricity meter readings available for every quarter of an hour. A problem with these readings is that only absolute values are given. When electricity is taken of the grid this is a positive reading, but when there is a surplus of solar energy and electricity is delivered to the grid, this is also a positive reading. To see the effect on the electricity demand of future energy measures, and to use the Seev4-City detailed CO2 savings calculation with the electricity mix of the grid, it is necessary to know the real electricity demand of the building.The second assignment is to use the calculations of the first assignment to separate the 15 minute electricity meter readings in that for real building demand and for PV production.This document first gives information for teachers (learning goals, possible activities, time needed, further reading), followed by the assignment for students.
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Digital technologies permeate and transform organisational practices. As a society, we need means to explore the uncharted terrain that lies ahead and the desirability and consequences of possible courses of action to move forward. We investigate a design approach, called ‘future probing’, to envision and critically analyse possible futures around digital technologies. We first reconstruct our journey and describe related insights on the process, content and context level. Reflecting on the journey, we then extract a key insight revolving around the challenge for participants to link back from exploring the future to their present practice. In a first attempt at theorizing these difficulties, we see future probing as a practice that opens up adaptive space (Uhl-Bien & Arena, 2017) in which people from different backgrounds engage in dialogue about possible futures of digital technologies. We found that adaptive processes, like semi structuring, temporary decentralisation, and collaboration (Uhl-Bien & Arena, 2018) were supported by the future probing practices and seemed to create space for employees to engage in exploration. There was still a lack of compelling acts of brokering and network cohesion (Uhl-Bien & Arena, 2018). This may indicate why linking back to daily practice is challenging. We assume that organising for adaptability requires a deliberate act of connecting far future explorations with present action, and propose that besides explorative skills, ‘adaptive anticipating’ action is needed to make the connection and that linking back through near future experiments might be a way to achieve this.
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