In contrast to combustion engines, the amount of energy required to manufacture the batteries plays a greater role in electric cars. According to the Heidelberg IFEU Institute, one kWh of battery capacity can save around 125 kg of CO2-emissions. The production of an electricity storage system with 24 kWh therefore produces around three tonnes of CO2 emissions. In contrast, the emissions produced when building an electric motor are lower. As a result, the e-car has to reduce its driving emissions by around 2.74 tonnes of CO2 offset. This means that if we concentrate too much on the emission of greenhouse gases, we could end up reducing CO2-The overall balance of a product should not be lost sight of. The latest, most economical model is not always the best choice and the frugal use of an existing product is the better way. In short, a vehicle should not be purchased as long as the CO2-backpack has not been emptied.
Housing cooperatives and housing group projects can apply until the end of February 2017
20 years Klaus Novy Prize
In 2017, Spar- und Bauverein Solingen eG is awarding the prize named after Klaus Novy for innovations in cooperative building and housing for the fifth time.
The fifth competition starts on 1 September 2016, from which date housing cooperatives and housing group projects have until the end of February 2017 to submit their competition entries.
Further information such as details of the competition theme and the decision-making process can be found at here can be regarded as a "good thing".
Aerial photos taken by a drone show the status of implementation in May 2019. The Platensiedlung in Ginnheim (Frankfurt am Main) will have 2 storeys added without additional land sealing and the existing buildings will be renovated to make them more energy efficient.
The project is the largest redensification of a housing estate in Frankfurt for many years and currently probably the largest project of its kind in Germany (as of 28.05.2019).
"The raw material wood is precious. It is therefore important to use it responsibly and in a way that conserves resources," warns Peter Aicher, Chairman of Holzbau Deutschland. Even if wood is affected by environmental influences or the bark beetle, it does not represent an inferior raw material, but has almost identical properties to conventional construction timber. "If the so-called 'calamity wood' has the same structural quality in terms of load-bearing capacity as conventional sawn timber, it can be used without restrictions," explains Aicher. In addition, the wood retains its important function as a CO2 sink, regardless of external impairments.
"If the wood is used as a building material, the carbon bound in the wood remains stored there in the long term, thereby significantly reducing the burden on the environment."
The goal must be an economically and ecologically sensible and efficient use of the domestic resource. In the interests of sustainability and climate protection, regional wood resources should therefore be used optimally.
Calamity wood is of high quality and can be used without restrictions
In most cases, bark beetle infestation is irrelevant for the use of the wood as a building material. The bark beetle lays its burrows in the bast, i.e. the area between the bark (bark) and the trunk, but not in the load-bearing wood itself. In addition, the sawn timber is technically dried during further processing. During this process at the latest, any remaining populations of insect pests are reliably killed off, so that beetle-free timber processed into sawn timber is guaranteed to be beetle-free. Every piece of sawn timber - regardless of its origin - must meet the criteria of DIN standard 4074 in order to be used as load-bearing timber in a building. In some cases, the wood turns a slightly bluish colour after a bark beetle infestation. It can then be used in the non-visible area.
Environmental factors and the effects of climate change have further facilitated the mass spread of the bark beetle in the past year. In most cases, rapid felling of the affected trees is the only alternative to stop the further spread of the pest. The logs are immediately removed from the forest and stored. This results in an oversupply of so-called 'beetle wood'. The prompt further processing of the calamity wood into sawn timber is an active contribution to climate protection.
Holzbau Deutschland appeals to the public sector as well as to architects and builders to make greater use of regional calamity wood and to specify this in tenders. The use of domestic calamity wood not only supports regional value creation, but is also a sign of solidarity with regional forest owners.
The planners' workshop embedded in the participation process for Viktoriakarree will take place between 31 August and 2 September. During these three days, four teams of planners will develop an independent planning concept on site, taking into account the results of the previous participation processes.
The planner workshop will open with the planner workshop kick-off event on Thursday, 31 August 2017, at 6.30 pm in the St. Remigius Chapter House. The evening event offers the opportunity to get to know the four planner teams and to find out about further opportunities for participation during the planner workshop. The evening will also address two of the main topics of the participation process to date, for which opposing views became apparent during the ideas workshop. The topics of "culture/education/history/leisure" and "work/commerce" will be explored in greater depth in two open discussion rounds, which will also involve the audience. The aim is to work out the conflicts of interest and commonalities in order to give all those present and, above all, the planning teams from outside the area an insight into the interests.
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