Production in the city is not a new phenomenon. Urban production - in its various forms and development paths - is one of the constitutive features of a city. The concept of the Productive City opens up the possibility of using a strategic approach to link the central aspects of the changing socio-economic basis of cities (development of new forms of production and work) with the goals of a compact and functionally mixed city.
In a research project of the iaw, the conceptual foundations of urban production and the productive city were prepared with a view to the situation in Bremen and analysed in their impact structure. The study makes proposals for describing and recording urban production that is compatible with the city and embedding it in an urban development policy model of a productive city. On the basis of seven reference cities (Vienna, Zurich, Stuttgart, Hamburg, Frankfurt am Main, Wuppertal, Bochum), corresponding activities were filtered out and their transferability to the city of Bremen was examined. In the city of Bremen, eight locations and neighbourhoods (including the Tabakquartier and Kellogg-Areal) were examined with regard to their potential for implementing a productive city.
Arbeitnehmerkammer Bremen (ed.), authors: Nischwitz, Guido; Chojnowski, Patrick; von Bestenbostel, Martin (2021): "Urbane Produktion für eine Produktive Stadt Bremen. An opportunity for more employment?" Series Work and Economy in Bremen 34/2021, Bremen. 202 pp.
The largest passive house development in Europe is currently being built on Mühlenweg in Vienna. The total area of the site Aspanggründe "Eurogate covers approx. 22 hectares. Six different architectural firms are planning a total of 740 flats. When completed, around 7,000 jobs will be created there. By the end of 2008, around 25% of the planned social housing in Vienna will probably be built to passive house standards." oekonews.at
Berlin, 22 October 2018: Vattenfall Energy Solutions, Gewobag and the energy storage start-up Lumenion are jointly piloting a new type of sector-coupled steel storage system at Bottroper Weg in Berlin-Tegel, which absorbs regional generation peaks from wind and solar energy in a grid-serving manner and later provides the renewable energy as heat and electricity in line with demand.
"With this pilot project, we want to demonstrate the particular technical and economic suitability of thermal storage systems for the effective utilisation of large quantities of wind and solar energy in a very practical way," says Alexander Voigt, founder and Managing Director of Lumenion. "Some of our team have been working with renewable energies for over 30 years and with energy storage systems for over ten years. Based on this experience, we made a conscious decision in favour of steel as a storage medium for the second phase of the energy transition, which is just beginning."
The Lumenion steel storage system stores "electricity peaks" for less than 2 cent/KWh in a cost- and space-efficient manner at up to 650° Celsius as heat, which can be converted back into electricity using a turbine unit if required - or used entirely as heat. As a co-founder of Solon, Q-Cells and Younicos, among others, Voigt has been successfully launching solar modules and storage systems on the market since the 1990s.
Hanno Balzer, Managing Director of Vattenfall Energy Solutions GmbH: "Decentralised systems and energy storage are key factors in the energy transition; heat is a particularly cost-effective form of storage. If the stored energy can then be utilised not only as heat but also in the form of electricity, that is a milestone. The high-temperature storage system brings us a big step closer to this!"
Karsten Mitzinger from Gewobag Energie- und Dienstleistungsgesellschaft adds: "The energy transition can only succeed if it is decentralised and based on partnership. As a housing industry, we are making our contribution to climate protection in our neighbourhoods. With this project, we are pleased to be able to demonstrate the good cooperation between energy supply companies, municipal housing associations and innovative start-ups. Only together can we master the major challenges of the energy transition."
In the Tegler pilot project, a 2.4 megawatt hour (MWh) storage block is being trialled for commercial use and transferred to regular operation. To this end, the unit will be integrated with an existing gas-powered CHP unit from Vattenfall Energy Solutions into the neighbourhood electricity and local heating supply of a 1970s apartment building owned by Gewobag. The storage system will temporarily absorb any power peaks that are not required and feed them into the heat supply later on as needed. In a second step, a reconversion into electricity is also planned.
Parallel to the construction of the pilot project, Lumenion is testing a 450 kWh prototype on the campus of the University of Applied Sciences (HTW) in Oberschöneweide. The HTW is supporting Lumenion with practical accompanying research in the development, testing and validation of data, as well as in the regulation and operational management of the innovative storage system.
In further projects, Lumenion storage systems with 40 MWh and even 1,400 MWh are to be created as the next milestones. These giga-storages can integrate existing and newly added large quantities of renewable electricity generation from wind and solar power into the existing grids in a particularly favourable, efficient and demand-oriented manner, thus enabling a significant acceleration of the energy transition.
On Saturday 14.4.2018, around 13,000 to 15,000 people took to the streets in Berlin under the slogan "Resistance - together against displacement and rent madness". 254 initiatives and organizations (see mietenwahnsinn.info/initiativen) called for the protest march. Many Berliners fear for their existence due to high housing costs.
Article "Large demonstration in Berlin - thousands against rent madness" in the taz: http://taz.de/Grossdemonstration-in-Berlin/!5498560/
3 min. video (Länderspiegel ZDF):
www.zdf.de/...grossdemonstration-in-berlin-rund-13-000-gegen-mietenwahnsinn-100.html
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Production in the city is not a new phenomenon. Urban production - in its various forms and development paths - is one of the constitutive features of a city. The concept of the Productive City opens up the possibility of using a strategic approach to link the central aspects of the changing socio-economic basis of cities (development of new forms of production and work) with the goals of a compact and functionally mixed city.
