Rotterdam, striving to be green, downplays CO2 targets
Published
While striving to reduce greenhouse gas emissions, the City of Rotterdam in the Netherlands focuses its narrative on making buildings, industry and transport cleaner and more efficient, which are concrete and tangible issues that the public can easily rally behind.
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
Housing industry, architects and municipalities called upon to participate
Berlin - Affordable and high-quality housing construction is currently more important than ever. For more than three decades, outstanding housing projects have been awarded the German Building Award every two years. This year's edition of the competition has now been announced.
The aim of the award, which is sponsored by the Federal Ministry of Housing, Urban Development and Construction, is to recognise the responsible efforts of developers to create affordable housing and neighbourhoods in "High Quality at Affordable Cost".
The German Building Award is known in the professional world and beyond as the most important prize in the field of housing construction in Germany. It is awarded by the German Association of Cities, the Association of German Architects (BDA) and the German Housing Association (GdW) within the framework of the joint KOOPERATION working group (AG KOOP).
The jury will use eight criteria to select 30 projects that will be nominated for the German Building Owner Award. All nominees will receive recognition for the projects they have submitted. A total of five German Building Owner Awards and up to three additional special awards will be presented.
"In order to continuously improve good and quality housing in Germany, innovative and at the same time affordable solutions are indispensable. Especially now, social responsibility and awareness of the quality of living spaces play a decisive role in this. The compatibility of these two criteria has been honoured with the German Building Award for more than 30 years and has only gained in importance," says GdW President Axel Gedaschko.
"How liveable cities are is determined in particular by the qualities of their public spaces and their built environment. The good examples from the German Building Award set standards for this. They offer high quality at affordable costs. It is good if, in the sense of sustainable and future-oriented urban development, such positive examples inspire other builders in as many places as possible," affirms the President of the German Association of Cities, Lord Mayor Markus Lewe from Münster.
"We need good and affordable housing that makes a qualitative contribution to urban and inner development and in which people want to live. Innovative existing developments and the further building of existing neighbourhoods are most likely to achieve high qualities at affordable costs while minimising the consumption of resources," explains Susanne Wartzeck, President of the BDA.
Housing companies and cooperatives, private and public developers, investors, developer groups, municipalities and property developers, freelance architects, urban planners and landscape architects as well as consortiums of planners in coordination with their developers can submit projects.
The submission of the competition documents is exclusively online via the portal www.einreichung-deutscherbauherrenpreis.de possible. The deadline for applications is 14 March 2022 at 2 pm.
Neues Berlin and Berliner Stadtwerke expand cooperation
Wohnungsbaugenossenschaft Neues Berlin and Berliner Stadtwerke have agreed on another joint tenant power project. Six solar power systems with an output of around 500 kilowatts are being built in the Mühlengrund housing estate in Hohenschönhausen. Tenants of more than 1,100 apartments will soon be able to benefit from green electricity from their own roofs.
The solar plants, which together cover 4,000 m², are being erected on a total of 23 six-storey buildings between Falkenberger Chaussee, Rüdickenstraße and Am Breiten Luch, near the Hohenschönhausen S-Bahn station. They will enable around 420,000 kilowatt hours of green electricity to be harvested per year and around 235 tonnes of the greenhouse gas CO2 save.
"We are very pleased that Neues Berlin has already started the third project with us, which is also quite large by Berlin standards," says Dr. Kerstin Busch, Managing Director of Berliner Stadtwerke, who points out that there is further potential for expansion in the Mühlengrund residential complex. "Although we are calling for improvements in the current EEG draft - for example, with regard to the obligation to tender or the supply of tenant electricity to neighbouring buildings - we see that tenant electricity can currently still succeed under certain conditions and in close communication with the residents and the cooperative, even under difficult conditions."
"Together with Berliner Stadtwerke GmbH, we have implemented environmentally friendly supply projects based on renewable energies on our roofs in a very short time and without much effort. We are looking forward to further projects like the one in Mühlengrund to give even more tenants the opportunity to benefit from tenant electricity. During the cooperation, it quickly became apparent that both sides are pursuing the goal of making an ecological and social contribution to our city with the greatest interest," says Thomas Fleck, member of the board at Neues Berlin.
In 2019, Berliner Stadtwerke and the housing cooperative Wohnungsbaugenossenschaft Neues Berlin have already successfully implemented a tenant electricity project in the residential complex Malchow floodplain in Hohenschönhausen. Since then, around 640 households have been able to obtain cheap green electricity from their own roofs. To this end, a total of five solar power systems with a total capacity of 224 kilowatts were installed on four buildings belonging to the cooperative. This year, Berliner Stadtwerke added an existing solar power system on the Neues Berlin building Degnerbogen converted to an intelligent tenant power system - a smart model for owners of PV systems that will fall out of the EEG subsidy in the future.
For Berliner Stadtwerke, the implementation of local green electricity projects is an important milestone in enabling a climate-friendly and affordable supply for all residents. To this end, solar power systems are being installed in residential areas and on public buildings, among other things, in order to generate clean electricity where it can be consumed. In addition to this local system expansion, Berliner Stadtwerke offers a range of solar energy services with its berlinStrom tariff municipal green electricity throughout the city. Today, Berlin's only public energy supplier counts more than 19,000 green electricity households among its environmentally conscious customer base.
Rents in Munich have risen by 70 per cent in the past 22 years - a development that is upsetting many Munich residents. What makes the state capital so expensive and how long-time residents and newcomers are suffering as a result.
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