DBU: Affordable energy-efficient housing and transport transition as key to sustainable development
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"Well-insulated and energy-efficient modern housing must remain affordable for poorer people. This is crucial, said DBU Secretary General Dr Heinrich Bottermann at the expert forum "Urban spaces in the face of climate change", to ensure that society does not become divided. He also emphasised how important it is for climate-neutral and resource-conserving neighbourhood development to rely more on timber construction and to push back concrete buildings. "If concrete, then only recycled concrete," emphasised Bottermann."
Dr Lars Grotewold, climate protection expert at the Mercator Foundation, spoke out in favour of a transport revolution in cities. Despite all efficiency efforts, transport still causes as many emissions as it did 25 years ago. Grotewold's ambitious demand: "By the middle of the century, the transport sector must be completely CO2-be free."
Amandus Samsøe Sattler elected new DGNB President | Photo: DGNB
With the architect Amandus Samsøe Sattler, the German Sustainable Building Council - DGNB e.V. has a new president. He succeeds Prof. Alexander Rudolphi, who will continue his work on the association's executive committee. The change was announced today during the DGNB Sustainability Day in Stuttgart. The election was held on the eve of the event by the ten members of the DGNB Executive Committee. Samsøe Sattler will initially take over the office until the next DGNB general meeting in the middle of next year.
"I am very pleased about the trust placed in me," says Amandus Samsøe Sattler, who has been volunteering as part of the DGNB Executive Committee since 2015. Many developments in recent years, such as the launch of the "Phase Sustainability" initiative, have made the new representative function within the DGNB even more interesting for him, says Samsøe Sattler. Therefore, there will be no fundamental change of course with him as president - on the contrary. "I consider the cooperation with the DGNB office to be very valuable and would like to continue the path the DGNB has taken in recent years." He sees a central task for himself in introducing the topics of sustainability even more strongly to architects, engineers and building owners from the real estate industry.
"We work hand in hand as a team on the board of the DGNB," explains the founder and managing director of the Munich office Allmann Sattler Wappner Architekten. "This will also be the case in the future, except that I will additionally represent our board even more strongly in the future." He is pleased that Alexander Rudolphi will continue to contribute his extensive experience to the DGNB.
Prof. Alexander Rudolphi remains active in the DGNB Executive Committee
The DGNB Executive Committee (from left to right) 1st row: Barbara Ettinger-Brinckmann (Bundearchitektenkammer), Prof. Anett-Maud Joppien (TU Darmstadt), Amandus Samsøe Sattler (Allmann Sattler Wappner Architekten), Prof. Dr.- Ing.Ing. Anke Karmann-Woessner (City of Karlsruhe) 2nd row: Prof. Alexander Rudolphi (Rudolphi + Rudolphi), Prof. Matthias Rudolph (Transsolar), Hermann Horster (BNP Paribas Real Estate), Martin Haas (haascookzemmrich - STUDIO 2050) absent: Dr.-Ing. Peter Mösle (Drees & Sommer), and Prof. Josef Steretzeder (Lindner) to the DGNB Presidium. Photo: DGNB
Prof. Alexander Rudolphi had held the post as DGNB president for a total of eight years - as founding president in the first year of the association in 2007 and in the last seven years since 2013. "The DGNB has been on a very good path for many years. The core requirements of the assessment and certification system are more correct and up-to-date today than ever before," explains Rudolphi. "At the same time, I am increasingly impatient that the necessary progress is not being made fast enough politically and in the market. Here I would like to work even harder for our common goals in the future. For this I would like more freedom - both in terms of time and content. With Amandus Samsøe Sattler, I know that the office is in the very best hands." In the future, the civil engineer wants to work especially in the political arena in Berlin and for a stronger regional spread of the DGNB in the north-east of Germany.
In addition to Amandus Samsøe Sattler and Prof. Alexander Rudolphi (Rudolphi + Rudolphi), other members include Barbara Ettinger-Brinckmann (Bundearchitektenkammer), Martin Haas (haascookzemmrich - STUDIO 2050), Hermann Horster (BNP Paribas Real Estate), Prof. Anett-Maud Joppien (TU Darmstadt), Prof. Dr.- Ing.Ing. Anke Karmann-Woessner (City of Karlsruhe), Dr.-Ing. Peter Mösle (Drees & Sommer), Prof. Matthias Rudolph (Transsolar) and Prof. Josef Steretzeder (Lindner) to the DGNB Executive Committee.
Various key topics are on the DGNB's agenda for the coming months. For example, cooperation with municipalities in the area of sustainability and climate protection will be intensified as part of a new initiative. The topic of digitalisation will also play a central role at the DGNB in the next six months. In addition, the activities already initiated at the beginning of the year concerning climate-positive buildings - not only in new buildings, but also in existing buildings - will be further intensified.
In North Rhine-Westphalia, around one in two (50.6 percent) of the 18,334 residential buildings (excluding dormitories) approved in 2019 are to be heated predominantly or exclusively with renewable energies.
Düsseldorf (IT.NRW). In North Rhine-Westphalia, around one in two (50.6 per cent) of the 18 334 residential buildings approved in 2019 (excluding dormitories) will be heated predominantly or exclusively with renewable energies. These 9 283 residential buildings use biomass, biogas/biomethane, wood, solar panels and/or heat pumps as primary heating energy. As reported by Information und Technik Nordrhein-Westfalen as the State Statistical Office on the occasion of this year's Renewable Energy Day (25 April 2020), the share of construction projects using environmentally friendly heating energies was highest statewide in the Olpe district last year: there, builders relied on renewable energies in 82.2 percent of new buildings. Bottrop (81.3 percent) and the district of Kleve (73.8 percent) followed in second and third place. Building owners in Solingen and the district of Mettmann, on the other hand, planned to use conventional heating energy in the majority of cases in 2019: Here, renewable energies were the primary heating source in around one in five and one in four residential building projects respectively (Solingen: 22.7 per cent; Mettmann district: 26.7 per cent). (IT.NRW)
The DGNB blog highlights sustainable building in all its facets. Leading experts from the construction and real estate industry discuss topics that move the industry. Pioneers of sustainability provide impulses that encourage people to rethink.
Six to ten gigawatts of photovoltaic capacity could be installed on Berlin buildings. More than enough to cover 25 percent of Berlin's electricity supply with solar energy, as envisaged in the plan for Berlin. But the current pace of expansion is decidedly too slow. The Solarcity Berlin master plan envisions producing a quarter of Berlin's electricity consumption with photovoltaics. This goal is to be achieved by 2030. Currently, Berlin's solar systems generate just under half a percent of the energy required in the city. Scientists at the Berlin University of Applied Sciences (HTW Berlin) have now conducted a solar potential study to show for the first time which buildings are suitable for solar installations and what restrictions must be expected.
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