The new cooperative for Cologne that is reinventing the neighbourhood - a participatory event
Beautiful living for all - the rooftop cooperative initiative STADTraum54 is initiating the largest new cooperative project in Cologne - and you are helping to plan it? The initiators of STADTraum54 are putting their concept up for debate. Taking part is part of the programme!
Who owns the city? To all of us! Housing is a basic right, social coexistence is the foundation of our society, ecology is our responsibility and community is our desire. Many people looking for a housing project would subscribe to this guiding principle. And although there are many interested parties and some nice projects, there has been a lack of effectiveness on a larger scale in Cologne so far.
This initiative aims to push forward into a new dimension of housing projects in Cologne and everyone can contribute to this as a source of ideas, supporter or comrade. Even the first project should be larger than the usual housing projects, guarantee a long-term social commitment and also be of benefit to the neighbourhood. What has been realised in Berlin, Munich and Zurich should also be possible in Cologne. However, it should not just be a project for a small group of lucky people, but the start of a new urban culture. How we get there and which things are important and which are luxuries will be worked out together on this evening.
The event is the start of a participatory process that will result in a city that is kept alive by its citizens through active use, that belongs to them and in which they feel at home - but it starts with a project and then some!
Tuesday, 25.08.2016, 19:00 to 21:00 | Haus der Architektur Köln, Josef-Haubrich-Hof, 50676 Köln | Organiser: Netzwerk für gemeinschaftliches Bauen und Wohnen, a project of hdak | Admission free, please register by e-mail to anmeldung@hda-koeln.de
In the context of the Green Deal, the EU's tightened targets on the path to climate neutrality envisage a reduction in CO2 emissions of 55% by 2030 and 100% by 2050. Against the background of these tightened parameters, the question arises as to the impact on the energy transition in Germany. Based on its energy system model REMod, Fraunhofer ISE has calculated the consequences of the new EU targets for the expansion of renewable energies in Germany and now presents the results in a short study.
In February 2020, Fraunhofer ISE presented the study "Pathways to a Climate-Neutral Energy System - The Energy Transition in the Context of Societal Behaviour", which investigated the influence of societal behaviour on possible transformation paths of the German energy system towards an almost complete reduction of energy-related CO2-emissions in the year 2050. The calculations carried out with the REMod energy system model were based on the targets set by the German government at the time of preparation, i.e. a reduction in German CO2-emissions by 55% in 2030 and 95% in 2050 compared to 1990.
In response to the tightening of the European targets from 40% to 55% by 2030, which has now been implemented as part of the European Green Deal, the Institute has recalculated. The transformation paths for Germany considered in the February study were revised with a view to reducing Germany's CO2-emissions of 65% in 2030 and complete climate neutrality of the energy system in 2050. The scientists from Freiburg recalculated all scenarios of their study from February (reference, insistence on conventional technologies, unacceptance of large infrastructure measures, sufficiency). As an additional aspect, they added an investigation of the sensitivity for import prices of green hydrogen and synthetic fuels. The short study mainly considers the reference scenario in order to be able to go into more detail on the changes caused by the target tightening. However, the study also identifies corridors for the expansion of a variety of technologies that can be derived from different scenarios. In the case of photovoltaics and wind, annual additions of 10-14 GW and 9 GW respectively are required by 2030 in order to achieve sufficient CO2-free electricity for Germany.
"The update of our energy end-use study shows that achieving the climate protection targets, even with a greater reduction in greenhouse gas emissions than previously assumed, is feasible from a technical and systemic point of view, albeit with greater efforts," says Dr Christoph Kost, head of the Energy Systems and Energy Economics Group and author of the short study. "A target tightening of energy-related CO2-emissions leads to a higher direct or indirect use of renewably generated electricity in the consumption sectors. This in turn requires a much greater expansion of wind and solar power generation facilities." Furthermore, the short study shows that the expansion of fluctuating renewable energies requires a strong expansion of system flexibility.
If we want to achieve a reduction in CO2emissions by 65% by 2030, battery-electric vehicles must account for 30-35% of passenger transport in the mobility sector, for example. In a climate-neutral energy system by 2050, conventional internal combustion engines will be virtually eliminated from passenger car transport as well as from freight transport.
"Heat pumps - used in households or to supply district heating networks - must become a key technology for heat supply with immediate effect," says Institute Director Prof. Dr. Hans-Martin Henning, summarising the results for the building sector. With a view to the CO2-avoidance costs, he adds: "The tightening of the target used here leads to an increase in CO2-avoidance costs. However, these depend to a large extent on the development of final energy demand."
Link to the study "Pathways to a climate-neutral energy system - The energy transition in the context of societal behaviour", February 2020, update December 2020:
Parliamentary State Secretary Rita Schwarzelühr-Sutter of the BMUB (3rd from left) hands over the grant notification for 10.4 million euros to SWLB. On the photo: Ursula Keck (Deputy Chairman of the Supervisory Board of SWLB and Mayor of Kornwestheim, left), Werner Spec (Chairman of the Supervisory Board of SWLB and Mayor of the City of Ludwigsburg, 2nd from left), Managing Director of SWLB, Bodo Skaletz (3rd from right), Steffen Bilger (Member of the Bundestag, 2nd from right), Jürgen Walter (Member of the Bundestag, right).
Stadtwerke Ludwigsburg-Kornwestheim is building one of the largest solar thermal plants in Germany with a collector area of over 10,000 m². The way is clear for another forward-looking project in Ludwigsburg: Stadtwerke Ludwigsburg-Kornwestheim GmbH (SWLB) has won the funding call for municipal climate protection model projects as part of the national climate protection initiative of the Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety in Berlin.
Their funding application for the SolarHeatGrid model project for the 'construction and connection of one of the largest solar thermal plants in Germany to an optimised heating network', in which the City of Ludwigsburg is involved as a cooperation partner, was approved. The official handover of the Municipal Climate Protection Model Project grant to Bodo Skaletz, Managing Director of SWLB, took place on 12 May 2017 by Rita Schwarzelühr-Sutter, Parliamentary State Secretary of the Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety, in the presence of the Lord Mayor of the City of Ludwigsburg and Chairman of the Supervisory Board of SWLB, Werner Spec, and the Lord Mayor of the City of Kornwestheim and Deputy Chairman of the Supervisory Board of Stadtwerke.
"In terms of the amount of funding, our solar thermal project is the front-runner in the ranking of the seven projects that were also approved. The federal government is contributing 10.4 million euros to the realisation of Ludwigsburg's large-scale project, which should inspire imitation throughout Germany," says a delighted Bodo Skaletz, Managing Director of SWLB.
"This renewal of the district heating network with solar heat is particularly forward-looking with regard to the feasibility of municipal heat supply with renewable energies. Swapping fossil for renewable - it works. I congratulate Ludwigsburg on this major high-tech piece of the puzzle, also in terms of CO2 savings and improved energy efficiency," confirms Parliamentary State Secretary Rita Schwarzelühr-Sutter.
"The 'SolarHeatGrid' is an important building block in the implementation of our overall energy concept for Ludwigsburg," explains Mayor Werner Spec. "We are thus significantly expanding our heat supply on a renewable basis and linking it across municipal boundaries. This is entirely in the spirit of sustainable settlement development: as cities, we must continue to commit ourselves locally with all our strength to environmental and climate protection."
The official start of this lighthouse project is 1 June 2017. The model project is scheduled to take a total of three years. As part of the project, the existing Ludwigsburg district heating network, which already provides heat for large parts of the city using mainly renewable raw materials, will be merged with the Rotbäumlesfeld, Technische Dienste Ludwigsburg (Gänsfußallee 21) and Kornwestheim-Nord networks, which are currently still supplied with fossil fuels. The construction of the solar thermal plant in connection with a large heat storage tank, which is to be built at the location of the CHP plant, will additionally feed high-quality, regeneratively generated heat into the expanded interconnected grid. This will further increase the amount of heat from renewable energies. With the help of the heat storage facility, the energy generated will also be available when there is little or no solar radiation.
The base load heat of the fossil-fuelled heating centres of the individual grids can thus be replaced by the largely regeneratively generated heat of the expanded interconnected grid. Approximately five kilometres of new district heating pipes will be laid over the next three years to connect the solar thermal system and the interconnected grid. In addition to the CO2 savings that will be achieved through the growing share of renewable energies in the expanded district heating network, the declared goal of the large-scale project is to increase energy efficiency. "In order to ensure that energy is used as efficiently as possible, it is not only the heat generation and distribution by SWLB that is decisive, but also the consumer side," Skaletz explains and adds: "As part of the network interconnection, measures are therefore to be implemented to reduce the so-called return temperatures, on which the performance of our district heating network depends to a large extent."
SWLB submitted the funding application in November 2016. The project aims to increase the share of renewable energies in the district heating network and to actively promote local climate protection and the energy transition at the local level by reducing CO2 emissions. More information on the municipal climate protection model project at: www.swlb.de/solar-heat-grid
PM of the Stadtwerke Ludwigsburg-Kornwestheim from 12.05.2017
Typologically organised overview with 24 current timber buildings
Various typologies and constructions in timber: wide-span halls, lightweight densification and prefabricated building elements
Current timber engineering at a glance
There are many reasons for and advantages to building with wood compared to conventional construction methods: Wood is a renewable building material and, as a CO2 sink, helps to protect the climate. At the same time, thanks to modern calculation and production methods, it can be used for numerous construction tasks. Wood has excellent structural and indoor climate properties and can be easily combined with all other common building materials.
Based on 24 international projects, this specialist book provides an overview of the variety of possibilities currently realised in modern timber construction. In texts, images and plans, the contributions document both the architectural and structural qualities of contemporary timber constructions, from the design planning to the supporting structure right down to the last detail.
- Typologically organised overview with 24 current timber buildings
- Various typologies and constructions in timber: wide-span halls, lightweight densification and prefabricated building elements
NEW November 2015 Authors: Lennartz, Marc Wilhelm / Jacob-Freitag, Susanne
28.0 x 22.0 cm
192 pages
approx. 240 illustrations in colour, 100 line drawings
Hardcover
Language: German
ISBN: 978-3-0356-0455-9
Five prize winners can look forward to the Lower Austrian Timber Construction Prize 2016, which was awarded for the 15th time on 6.6.2016.
Högl Winery, Wachau Prize winner utility building
(Copyright Elmar Ludescher)
"Planning is becoming more and more creative and every year there are new technical solutions. As a result, wood is becoming more attractive as a building material for builders and planners every year," summarises Deputy Governor Johanna Mikl-Leitne. "You can see this not only in single-family homes, but also in the public sector, where wood is being used more and more often in construction." The timber industry in Lower Austria has now reached a production value of around 1.7 billion euros and employs around 22,000 Lower Austrians.
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