Hamburg Partners

The conference will be held in active collaboration with local partners. They will enrich the event by contributing good practice examples and experiences recently gained in Hamburg.

The key partners are

2nd International BMBF Conference

Future Megacities
in Action

Innovative Solutions for Energy- and
Climate-Efficient Urbanisation

May 14 – 16, 2013 | Hamburg (Germany)

Photo Credit – IBA Hamburg GmbH / Martin Kunze

IBA Hamburg – International
Building Exhibition

The text is based on publications of IBA-Hamburg

Building the City Anew

“Shaping the future of the city in the 21st century”. This is a challenge that has been taken up by the IBA Hamburg International Building Exhibition, with projects that make an innovative and sustainable contribution to current issues of urban development.

Until 2013 and in the heart of the hanseatic city, IBA Hamburg will stage more than 60 social, cultural and building-related projects and programmes as a blueprint for the 21st century, showing how the metropolis can continue to grow in a socially and ecologically balanced way.

The IBA project aims to be a model of sustainable and future-oriented inner city development.

International building exhibitions
and IBA Hamburg

International building exhibitions have been a major tradition in Germany since 1901, in terms of both municipal planning and building culture. They have always been more than just exhibitions, engaging at all times with current contemporary challenges.

The Free and Hanseatic City of Hamburg launched the IBA in 2006, with the aim of initiating ‘Building the City Anew’ and providing this with a conceptual underpinning, based on new strategies connected with three topical and internationally discussed urban development themes. The first of these relates to the question of the future shape of shared living in an urban society that is becoming more international and multicultural all the time. This guiding ideal goes by the name of the ‘Cosmopolis’. The second guiding ideal, ‘Metrozones’, aims to highlight the often concealed potential of the ‘inner city periphery’. And finally with its third headline project, ‘City and Climate Change’, IBA Hamburg tackles the question of how to balance the requirements of urban growth and climate conservation.

Headline topics and projects
of IBA Hamburg:

Cities and Climate Change -
New Energies for the City

In view of its position in the heart of the area where the Elbe divides, this location is more suitable than any other to represent issues of preventive and adaptive climate protection. Ever since the island was first inhabited, flooding has been a constant risk – a risk highlighted by the overwhelming flood disaster of February 1962. So there is an imperative need in Wilhelmsburg for new strategies for dealing with floods, rising ground water levels and heavy rain conditions. But model urban development strategies for CO2-neutral building are no less in demand. So IBA has devised a climate protection scheme under the heading ‘Renewable Wilhelmsburg’, hoping this will serve as a basis for the gradual switchover to supplying energy to the Elbe islands on a completely regenerative basis. For this reason IBA Hamburg follows a practice of climatically friendly building, and relies on domestic and sustainable sources of energy.

Photo Credit – IBA Hamburg GmbH / Martin Kunze

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Cosmopolis – New Opportunities for the City

The central focus under this heading is on education. Not only is an educational drive looking into new pedagogical and conceptual approaches to improving the educational situation in districts dominated by immigration; new trail-blazing educational facilities have also been set up under the auspices of IBA Hamburg.

Other projects, like those of the ‘Elbe Island Creative Quarter’, focus on living and living space, and demonstrate how conditions of life can be improved for the local population and how new models of urban neighbourhoods can function. Projects like the Global Neighbourhood (Weltquartier) urban renovation project and the Veringhöfe art and creative centre have also shown how local residents and businesses can be actively involved in the planning process and contribute to the shaping of their environment.

Photo Credit – IBA Hamburg GmbH / Martin Kunze

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Metrozones – New Spaces for the City

IBA Hamburg’s presentation area amounts to a patchwork measuring 35 square kilometres – between the city and port, between quiet and hubbub, between green spaces and grey transport axes. The motorways and railway lines cut right across the Elbe islands in a north-south direction. So the aim is to create spaces based on existing hiatuses and breaks in the urban network, such as multi-lane highways, marshland and empty industrial areas, with a view to toning down sharp contrasts. Such places would represent a new form of urban culture, depending on the unique qualities of Europe’s largest river island – the inner city landscape and the scenic variety of the watery setting. The centrepiece of IBA’s plans under this heading is the Wilhelmsburg Central (Wilhelmsburg Mitte) project. An important component in this is the ‘building exhibition within the building exhibition’, presenting innovative solutions for aesthetically ambitious and at the same time cost-effective, adaptable and sustainable buildings.

Photo Credit – IBA Hamburg GmbH / bloom images

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The IBA presentation year 2013

In 2013 IBA will commit its presentation year. It will then be possible to see the finished projects, and the work of the past seven years will be shown in a varied programme. Apart from the transferable model character, the 60+ IBA projects should then indicate the beginning of a new and sustainable development.

Photo Credit – / R. Hegeler

HafenCity Hamburg

The text is based on publications of HafenCity GmbH

Hamburg is setting new standards in developing a new city area along the Elbe. On an area of 157 hectares, a lively city is taking shape, bringing together workplace and residential uses, culture and leisure, tourism and retail facilities. What sets it apart from other major urban international development projects on the water is the area’s very central location and the high expectations of quality reflected, for instance, in its fine-grained mix of uses, standards of urbanity and ecological sustainability, and innovative development process.

HafenCity is not surrounded by dikes, nor cut off from the water. The concept of building on artificial compacted mounds (warfts) lends an area once dominated by port and industrial uses a new, characteristic topography, retaining access to the water while guaranteeing protection from extreme floods.

Definition of a completely new urban district

The task in hand is to define a new downtown in both urban planning and architectural terms. HafenCity consists almost wholly of new buildings, since not many old ones were preserving, as the site of HafenCity was largely occupied by single-story sheds. A total 6,000 residential units for 12,000 residents are being built, as well as business premises offering in excess of 45,000 jobs.

Photo Credit – / B. Kuhn

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Development process

HafenCity Hamburg GmbH pulls the strings, overseeing all activities as the city’s manager of development, property owner and developer of infrastructure (except the subway).

Since the aim is to set international standards for conceptual and architectural quality, it is very important to attract investors and developers willing to cooperate in setting high quality standards and in treading innovative paths.

Tenders are invited for plots scheduled for residential use; the competition result is decisive. It is not the highest bid that is successful – the crucial factor for awarding the contract is the quality of the use concepts submitted.

Photo Credit – Thomas Hampel / ELBE & FLUT / Quelle: HafenCity Hamburg GmbH

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Low-emission thermal energy

Medium to long term, HafenCity’s sustainable structure will contribute significantly to fulfilling Hamburg’s climate goal of a 40 percent cut in CO2 emissions by 2020 compared with 1990. In HafenCity, the innovative supply of energy and heat is actually expected to cut emissions by as much as 50 percent.

All buildings in western HafenCity are connected to district heating networks driven by combined heat and power generation. Decentralized heat supply combined with fuel-cell technology, geothermal energy and solar thermal energy produces an efficient blend of energy with CO2 emissions of 175g/kWh. Heat supply for eastern HafenCity will see CO2 emissions decrease to 89g/kWh – a considerable further reduction. The concept is for a local energy supply network driven by combined heat and power generation fed by various power units both within and outside HafenCity.

Almost all the energy sources deployed – a biomass-fired combustor, a biomethane fuel cell, a gas-fired combined heat and power unit, and a heat pump – are renewable. Wood combustion will fire one of three heating plants on the site of the former Hamburg Central Market in place of an existing wood burning unit. Because of its decentralized structure, the system can grow with the new city district.

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Resource-efficient buildings

HafenCity Hamburg GmbH developed Germany’s first certification system for sustainable building in 2007. Since then it has been awarding the gold Ecolabel for extraordinary attainment, and the silver Ecolabel for special attainment in realizing sustainable buildings. The award is designed to motivate private and public developers to handle resources responsibly. It evaluates the ecological, economic and social sustainability of a projected building.

Initially the Ecolabel applied to residential, office and special constructions. But since so many buildings with retail or hotel uses and multi-uses are going up in central and eastern HafenCity, certification of these building types has been possible since 2010.

Tender invitations now increasingly require building projects to meet the stringent standards of the gold Ecolabel. In eastern HafenCity the aim is to achieve more than 70 percent gold Ecolabel certification for residential buildings. In future, the gold Ecolabel will be mandatory for buildings which include residential use.

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Into the future through research

HafenCity is the site of a series of pioneering projects: in Grosser Grasbrook, tests are under way to see how indoor atmospheres can be dehumidified using geothermal energy. A pilot fuel cell project is in operation in the heating plant in western HafenCity. In the same area, power supplier Vattenfall installed an information stele in summer 2012, which informs the public about Hamburg’s largest solar thermal plant on the roofs of western HafenCity. The new city district also has Europe’s largest public hydrogen service station opened in February 2012 at Oberbaumbrücke opposite the SPIEGEL building. This is where part of Hamburg Hochbahn AG’s fleet of public hydrogen-powered buses refills.

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