The short video gives a first insight into the DGNB system for districts in the 2020 version. Which criteria are relevant? Which types of neighbourhoods can be certified according to DGNB?
After one and a half years of consultation, the black-green Hessian state government has adopted its Climate Protection Plan 2025. According to the plan, greenhouse gas emissions are to be reduced by 30 percent by 2020, by 40 percent by 2025 and by at least 90 percent by 2050 (compared to the base year 1990). By achieving these goals, Hessen wants to become climate neutral by the middle of the century and contribute to national and international climate protection efforts.
The measures include, among others, the "storage of carbon in durable wood and fibre products and substitution of energy-intensive materials with wood and fibre products". To implement this, the state of Hesse wants to explicitly support timber construction and promote innovative timber products through funding programmes. In addition, timber construction and the use of wood are to be further promoted by reviewing building regulations and the state's procurement guideline.
Difu city survey "OB-Barometer 2020" gives municipalities' assessment of the future* Berlin/Cologne. Climate protection and adaptation to the consequences of climate change will become increasingly important for cities. This is one of the findings of the survey of (Lord) Mayors of large German cities* conducted by the German Institute of Urban Affairs in January and February 2020. Almost two-thirds of the respondents named climate protection as an important municipal issue for the future. This means that the number of mayors who attribute an increase in importance to this field of municipal policy action has more than tripled compared to the previous year. Future surveys will show how strongly this result was influenced by the protests of the 'Fridays for Future' movement.
More than half of the respondents also see a growing need for action in the area of mobility. This topic, which already ranked second among the future topics last year, has thus once again gained in importance for city leaders. This may also have something to do with the fact that urban mobility is an essential aspect of municipal climate protection. The top future topic of the two previous years, digitalization, is in third place in the survey among the most important future topics for municipal policy. A good third of respondents believe that digitisation will become more important for cities in the next five years. Other municipal policy issues to which the mayors attach particularly high relevance for the future are the creation of affordable housing, the financial situation of the cities and the strengthening of the economy.
City leaders agree that the future challenges facing cities will require a high level of funding. This is particularly true for the topics of mobility and climate protection. Almost 90 percent of those for whom these are key issues for the future expect to have to make large or very large investments in these areas. The situation is similar in the areas of digitisation and the creation of affordable housing: here, around three quarters of the city leaders who see digitisation and housing among the most important future issues for cities still consider the future financing requirements in these policy areas to be high or very high.
* The survey was conducted before the Corona pandemic in Germany pushed other issues into the background. Even if normality should have returned to some extent in the cities after the state of emergency, the view of the political decision-makers on the municipal world will be different. Difu will therefore publish the full results of the OB-Barometer 2020 at a later date, possibly linked to current surveys that include "Corona aspects". This report therefore focuses primarily on the sub-area of "future issues".
Violet, green, blue and yellow - inside the innovative battery storage systems now available in the Climate quarter of the municipal utility company, will be colourful in the future. The electrolyte, which can store up to ten kilowatt hours of self-produced solar power, changes color depending on the state of charge.
Each of the new storage tanks holds 500 litres of the storage liquid. Redox-flow batteries in the cellars of the seven houses. The developers of the Dortmund-based manufacturer Volterion, a spin-off of the Fraunhofer Institute UMSICHT, installed and filled them themselves in Herne. This is because the climate district is an interesting technical demonstration object for them: Up to now, they have only installed battery storage systems in large-scale projects. In the single-family homes in Sodingen, the battery is only about the size of a two-door wardrobe.
Compared to conventional rechargeable batteries Redox-flow batteries are characterized by high operational reliability and extreme durability. Even a complete discharge does not harm them.
"With the battery, our energy concept of solar system and heat pump is now complete," explains Stephan Becker, project manager at the developer Stadtwerke Herne. "The climate quarter is now entering the home stretch." The final inspection with the future residents is scheduled to take place in about two weeks.
In April of last year, the municipal utility company began construction of the seven modern plus-energy houses. The small car-free model settlement combines the latest storage technology with renewable energy generation. The supply concept varies in individual details. With scientific support, the most efficient combination is to be found after the residents have moved in.
No stopping, no weaving through, no suddenly opened car doors: With the expansion of motorways for bicycles only, Norway's government wants to create an incentive to take the bike more often.
Norway's goal: less harmful emissions, and soon. Pollutant emissions from traffic and transport are to be reduced by as much as 50 per cent. For car traffic in the city, this means: It should not grow any further without restricting the mobility of citizens. In this context, the Norwegian government speaks of a "zero-growth" target.
Link to the article from (unfortunately no longer online; as of 10/2020):
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