Electricity storage systems are becoming economical
Published
Photovoltaic systems are already a financially rewarding investment for homeowners today. Coupled with a solar power storage system, the profit will increase even more in the future. This is because storage systems are on the verge of becoming economically viable. This is the result of calculations by the Solar Cluster Baden-Württemberg.
The limit is 1000 euros/kWh
In the last twelve months, the costs for storage batteries for PV systems have fallen by an average of more than 10 %. "In the first quarter of 2017, they were in some cases only around 1150 euros per kWh of storage capacity," says Carsten Tschamber from Solar Cluster. The limit below which the small storage systems bring in more than they cost when used for 20 years is around 1000 euros, assuming a small increase in electricity prices. If you subtract the KfW subsidy, which decreases every six months, the first storage products already reach economic viability with good planning. By the end of the subsidy in 2018, the batteries could become up to 20 % cheaper - a purchase would then be worthwhile for the consumer even without government subsidies.
The cost of solar electricity from new PV systems on residential buildings has now fallen to as low as 8 Ct/kWh - household customers pay more than three times that for grid electricity. That is why it is worthwhile for them to consume as much of it as possible themselves. Solar batteries help to double self-consumption from 30 to 35 to up to 70 %.
Source: Post from 23.5.2017 on www.geb-info.de (no longer online, as of January 2021)
In Hamburg-Wilhelmsburg, the city's largest wooden house celebrated its topping-out ceremony on Thursday. The six floors consist of 371 pre-assembled wooden modules that are stacked on top of each other. The individual modules weigh more than nine tons and are virtually ready-made student apartments, including bathroom, kitchenette and bed. Only the foundation and staircases are made of concrete. "The construction could revolutionize the way residential buildings are built," said developer Torsten Rickmann at the topping-out ceremony on Thursday. The dormitory should be ready for occupancy as early as the winter semester. A furnished apartment will cost 500 euros warm rent per month. The first students are expected to move in as early as October 1.
The design for the wooden student dormitory comes from the Berlin architectural office and timber construction award winner Sauerbruch Hutton. The wooden modules were manufactured by the Vorarlberg-based company Kaufmann Bausysteme. "We decided on the modular construction method because the series production and the high degree of prefabrication drastically shorten the construction time," says Achim Nagel from the developer Primus developments.
PolRess is a project of the Freie Universität Berlin, the Research Centre for Environmental Policy, together with Ecologic Institute and Öko-Institut, which accompanies the process of implementing and updating the German resource efficiency programme ProgRess with scientific studies.
The analyses examine relevant actors and their positions on various fields of action and starting points for resource policy, instruments of resource policy
In particular, the integration of environmentally oriented and ambitious resource policy requirements should be strengthened in the various policy areas and levels, especially at the subnational level.
On 1 and 2 June 2018 in Berlin
Venue: Kalkscheune Berlin, Johannisstraße 2, 10117 Berlin
The demands placed on cities and regions as places of work are changing as a result of ongoing economic structural change. Following industrialisation and tertiarisation, digitalisation is bringing new profound changes to the world of work and thus new challenges for urban development planning and social coexistence. At the 6th National Urban Development Policy University Day, both the changes in the world of work and the challenges for urban development planning will be identified and discussed in presentations and forums. The professional exchange can be further deepened at the evening reception on 1 June 2018.
There will be the following topic-specific forums:
Forum A: Mixed, inner-city neighbourhoods
Forum B: New neighbourhoods
Forum C: City centre and centres
Forum D: Urban region
Forum E: Rural areas and small towns
Forum F: From industrial estate to productive urban neighbourhood 24/7
Programme, participation and registration Participation is free of charge. Preliminary information on the programme and the opportunity to register can be found at here.
21.01.2020 Everyone is talking about sustainability - including the construction industry. A prize that the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) and the Federal Environment Agency (UBA) have been organising since today provides the perfect talking point: With the new "Federal Environment and Building Prize", which will be awarded for the first time in 2020, the initiators want to recognise projects that are exemplary in terms of sustainability - not only in the classic areas of existing and new buildings, but also in five other categories. All players in the construction sector can apply. The closing date for entries is 15 April 2020 and the patron of the competition is the Federal Minister for the Environment, Nature Conservation and Nuclear Safety, Svenja Schulze.
The desire of more and more building owners and planners to combine high utility value and architectural quality with Climate - and environmental protection has resulted in many exciting projects. They demonstrate by practical example that sustainable construction offers many advantages over the life cycle - also in terms of costs.
Federal Environment Minister Svenja Schulze: "This is precisely where the Federal Environment and Building Award comes in. On the one hand, the prize is intended to illustrate the spectrum of what is already structurally and technically possible today. On the other hand, it is intended to raise awareness of the outstanding examples through the award and thus invite imitation."
Professor Dirk Messner, President of the Federal Environment Agency: "It's about holistic solutions that incorporate the technology, the design of the building and its surroundings. Individual 'greenfield' projects are expressly not supported. In no other competition is the interplay between the environment and building assessed in such a way as in the Federal Environment & Building Award."
About the Federal AwardIn order to show the breadth of sustainable building, the Federal Award comprises the categories "Residential buildings", "Non-residential buildings", "Neighbourhoods" and "Sustainability and innovations". The first two categories focus in particular on the energy-efficient refurbishment of existing buildings, as this is where the greatest need for action exists from a climate protection perspective.
In addition to these competition categories, the BMU and UBA also award three special prizes for particularly innovative approaches. Under the headings "Resilience" and "Sufficiency", the focus is on adaptation to climate change and strategies for reducing the use of resources. Building projects that take particular account of aspects of biodiversity and thus make a substantial contribution to the protection and implementation of "urban nature" are also to be honoured. The third field "Building envelope & building product" is intended for novel solutions with innovative materials and building constructions.
Conditions of participationDue to the thematic breadth, all players in the construction sector are invited to apply: from clients and property developers to architecture, building services, urban and landscape planning offices, manufacturers and research institutions. The competition is aimed at buildings or neighbourhoods completed in Germany that are at an advanced stage of planning; multiple applications in different categories are possible.
What awaits the winnersThe award winners can look forward to public recognition on several levels. The award ceremony will take place on 29 September at a congress on sustainable building at the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety in Berlin, where the award-winning projects will be presented to experts and the media. The award-winning projects and their plus points will also be presented on the websites of the UBA and the Federal Ministry for the Environment - including in the form of videos: This is because the UBA is having films made about the award-winning sustainability examples, which the winners can then use for their own public relations work. In addition, all award-winning projects will be documented in a book.
Interested parties can find more information on the conditions of participation in the Federal Environment & Building Award and the selection procedure on the UBA website: www.umweltbundesamt.de/bundespreis-umwelt-bauen-start
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