Thema: Energy and climate protection

Energy efficiency, energy sufficiency, renewable energies, energy storage, sustainable mobility, as well as building materials with a good ecological balance are central topics for the realisation of climate protection settlements and districts. No other topic has been tested so extensively in numerous model projects. How it works is clear, the technology is available and economical to implement.

Extension in Berlin-Weißensee

13086 Berlin: The complex was taken over again by GeWoSüd after reunification, fundamentally renovated and extended by 87 apartments by adding attic storeys. These were planned by the Berlin architect Carlos Zwick. In total, the estate consists of 457 apartments. Completion of the extension: 1996

Neckarpark" urban district in Stuttgart

70372 Stuttgart: Europe's largest wastewater heat utilisation plant will in future supply the new residential and commercial area with 850 residential units, commercial areas, parks, squares and streets on a total of 22 hectares and is thus a beacon project for renewable energies. The sewer will provide local heating and cooling via a 300m heat exchanger. The system has been installed since 2018 and will be commissioned as soon as the heating plant is also in full operation. The quarter is still under construction. Planned completion of the quarter: 2021

ecovillage Hanover

30539 Hanover Kronsberg: adjacent to the Expo-Settlement Hanover-Kronsberg the "ecovillage Kronsberg" is to be built. The sponsor is the cooperative ecovillage hannover e.G., which was founded in 09/2019 and today (02/2021) already has 555 members. The cooperative will purchase the 49,300 m² site from the City of Hannover in February 2021; construction planning is in full swing.

Solar local heating network in Moosach

85665 Moosach: In the community of Moosach, the cooperative Regenerative Energie Ebersberg eG and the company NATURSTROM AG have implemented a solar local heating network with a collector field of 1067 sqm and a buffer storage of 100 cubic meters. If the sun is not enough, a biomass boiler supports the energy supply. This is fed with wood chips from the region of maximum 40 kilometers. Completion: 2018

Climate-neutral new housing estate Freiburg Dietenbach

79111 Freiburg-Dietenbach: one of the largest new development areas in Germany is being built on 110 hectares for 6,900 apartments. The intention is to create living space for 15,000 residents. Six new neighborhoods are to be developed in Freiburg's west along the Dietenbach as a climate-neutral and colorful district with short distances, open spaces, schools, sports facilities, daycare centers and shopping opportunities. It should be possible to move into the first apartments around 2025/2026. Completion: ~2035

Aegidienhof" social housing project in Lübeck

23552 Lübeck: At the time, the Aegidienhof was the largest social housing project in Schleswig-Holstein. Here, young and old, people without and with disabilities, single people and families, live and work together in a new urban mix. The architectural firm Meyer Steffens Architekten+Stadtplaner BDA carefully renovated and converted twelve different old town houses around a large common courtyard in the complex around the Aegidienhof, which is significant in terms of architectural and cultural history. The result is 65 apartments as well as 9 studios, practices, offices, workshops and a café. Completion (modernization): 2003

Environmental and cultural station Uelzen

Photo: Thomas Meier, www.radundfuss.net29525 Uelzen: According to the plans of the painter and architect Friedensreich Hundertwasser, the old brick building was redesigned into a colourful work of art during the EXPO 2000. Completion: 2000

Hill meadow country and thermal spa in Bad Blumau

© Photo: Thomas Meier, radundfuss.netAT - 8283 Bad Blumau: the buildings are partly realised with recycled building materials, the whole resort is supplied with emission-free electricity and heat, which is generated in a geothermal plant. The resort was designed by Friedensreich Hundertwasser. Completion: 1997

KOKONI ONE housing estate (formerly "Gut Buchholz") in Berlin-Pankow

13127 Berlin-Pankow: On a 23,000 sqm site in Pankow-Französisch Buchholz, a housing estate with 83 residential units with a total living space of approx. 12,000 sqm plus a community house will be built. Mainly renewable and healthy building materials such as wood, loam and straw with a positive CO2 balance will be used. Composite materials will generally be avoided. In the centre of the settlement there is an orchard with a community house. The heat and electricity generation in the settlement is fossil-free. Completion (planned): 2022

Building area "Hirtenwiesen II" with solar local heating in Crailsheim

74564 Crailsheim: 250 residential units and a school with sports hall (Hirtenwiesenhalle). Solar local heat supply for the base load heat of 2000 apartments with 7,410 m² collector surface, a 39,000 m³ geothermal probe heat storage, two buffer storage tanks (100 m³ + 480 m³) and a compression heat pump (80 kW). Completion: 2008

Solar thermal plant Römerhügel in Ludwigsburg

70806 Ludwigsburg: With a collector area of 14,800 m², Stadtwerke Ludwigsburg-Kornwestheim has built the largest solar thermal plant in Germany. In a 20-meter high heat storage tank with a volume of 2,000 cubic meters, the solar-generated energy is available even when there is little or no solar radiation. The collectors collect around 5200 megawatts of heat per year, enough to supply around 300 average households. Completion: 2020

Siepenfeld" student housing complex in Bochum

Bochum: 258 new residential spaces in passive house standard in timber hybrid construction. The buildings were constructed to the passive house standard and certified according to the criteria of the DGNB German Sustainable Building Council. The CO2-neutral building material wood also ensures a significantly improved ecological balance. Planning: ACMS Architektur GmbH, Wuppertal. Completion: 2019

Energy Plus Quarter Vellmar North

34246 Vellmar North: The urban design, with around 550 residential units on a 16-hectare site, envisages a mix of detached single houses and houses in a more compact design using semi-detached and terraced houses and multi-storey housing. In terms of size, it will be one of the largest plus-energy housing estates in Germany. The plus-energy concept takes into account heat, electricity and mobility. Start of construction: from April 2020. Completion: ~2024

Platensiedlung in Frankfurt-Ginnheim

Frankfurt a.M. Ginnheim: The 342 existing apartments in the 19 three-storey row buildings will be renovated to improve energy efficiency (insulation and new windows) and two storeys will be added. A total of around 680 new, mainly smaller apartments are being created. 300 apartments are being built in 15 new buildings in so-called gate and bridge houses. Architecture: Stefan Forster (Frankfurt). Construction began in 2017. Completion of the storeys: End of 2019. Completion of the new buildings (post-densification): 2023.

Residential PV plant with 3.4 MWp in Marzahn-Hellersdorf

12619 Berlin Marzahn-Hellersdorf: Mietersonne Kaulsdorf, Germany's largest tenant power project with almost 3.4 megawatts (MW) of capacity, is being built by Berliner Stadtwerke for the Berlin housing association berlinovo in Marzahn-Hellersdorf. Tenants of 4,300 apartments will be able to benefit from the green electricity generated directly on their roofs.

Plus-Energie-FertighausWelt Wuppertal

42279 Wuppertal: The exhibition with 19 show houses in the "Efficiency House Plus" building standard on the 18,000 square meter site is a model project of the prefabricated construction industry for the development of energy-efficient settlements, sponsored by the BBSR. All model houses are networked with each other and have a central storage battery so that energy can be generated, stored and distributed collectively. Completion: 2013

Permaculture settlement "EVA Lanxmeer" in Culemborg

NL - Culemborg: With 240 houses, it is the largest permaculture settlement in Europe and worldwide. It was built with the aim of living there in the most environmentally friendly and self-managed way possible. The founder Marleen Kaptein was convinced from the beginning that people should have the opportunity to shape their environment and take responsibility. Completion: 2009

Old foundry, Winterthur

CH - Winterthur: The multi-generation house Giesserei is located in Oberwinterthur, in the city centre Neuhegi directly at the Eulachpark. It has 155 apartments with 1½ to 9 rooms, 11 joker rooms (including 3 guest rooms) and 14 commercial businesses, including a restaurant, a branch of the Winterthur City Library, two art galleries and a music centre. The 8 communal rooms include a large hall for internal and public events, 2 common rooms, 2 wash bars, a music practice room and 3 workshops. The buildings are constructed in ecological timber construction and meet the Minergie-P-Eco standard. With only 0.2 parking spaces per apartment and 480 bicycle stands, the Giesserei is considered a car-free development. Site area: 11 000 m². Completion: 2013

Plusenergiesiedlung, Tobel

CH - Tobel: The PlusEnergy development in the Thurgau municipality of Tobel with three multi-family houses (MFH) and 32 apartments was built to the Minergie-P standard. The PV system has an installed capacity of 351 kWp. They generate a solar power surplus of 76'000 kWh/a with which each apartment can use a solar-powered electric car which can drive 12'000 km CO2-free per year. Unique are the rents, which are 20% below the quarterly rents for comparable apartments in the Wil/SG region. Swiss Eurosolar Prize 2018. Completion: 2017

Lok.West" quarter with power-to-gas technology in Esslingen

In-Entstehung_gr100px_200dpi73728 Esslingen Neue Weststadt: A "showcase quarter" with 600 apartments, office and commercial space as well as a new building for the Esslingen University of Applied Sciences is being built on 12 hectares. The total investment volume is around 190 million euros. 30 percent of the quarter's use is intended for commercial purposes. Construction of individual building blocks already started in 2016 and will continue until around 2022. Planned completion: 2022

"Stad van de Zon", Heerhugowaard

NL - Heerhugowaard: With 2,900 apartments on 123 ha of building land, the settlement is the largest sustainable settlement in the world. The total area with park and water areas covers 177 ha. The photovoltaic system on the roofs has a capacity of 3.75 MW. Another PV system with 1.25 MW, as well as three wind turbines on the site are the active components of the CO2-neutral energy supply. Car-free zone. Planning: Ashok Bhalotra of urban design bureau KuiperCompagnons, Rotterdam. Partner of the European Sun Cities project. Completion: 2016

icec - International Campus-Eco-City Wünsdorf

15806 Wünsdorf: Concept of an ecological model and future city for the 21st century. Since 2017, a team of pioneers of ecological urban planning around Prof. Dr. Ekhart Hahn has been developing a new Campus Eco-City to be built at the Wünsdorf site near Zossen (approx. 40 km from Berlin). The former "forbidden" town of Wünsdorf with a total area of 600 ha offers ideal conditions for the realisation of this vision, which is to be realised on approx. 100 ha. Completion: ~2030

Climate protection district with "cold local heating

73262 Reichenbach an der Fils: In the Esslingen district of Baden-Württemberg, a new development is being built with a so-called "cold local heating network", which will not only heat the 41 houses in an environmentally friendly way in the future, but also contribute to the temperature control in summer. Photovoltaic systems including storage, which will supply the quarter with home-generated solar power around the clock, round off the energy concept. The focus is on an innovative local heating supply based on geothermal energy.

Hesse's largest residential PV plant

60326 Frankfurt: Mainova has built a photovoltaic (PV) plant with a total output of around 1,500 kilowatts peak (kWp) in Frankfurt's Friedrich Ebert housing estate. This means that Germany's largest housing estate photovoltaic plant will be fully connected to the grid at the beginning of 2019. The locally generated, climate-friendly solar power from their own roofs can be used directly by the tenants on site.

Energy bunker, IBA Hamburg

21107 Hamburg-Wilhelmsburg: The former flak bunker in Wilhelmsburg has become a symbol of the climate protection concept Renewable Wilhelmsburg. The monument, which has been virtually unused since the end of the war, was refurbished as part of the IBA Hamburg and converted into a renewable power plant with large-scale heat storage. The energy storage facility has a volume of 2,000 cubic metres, which corresponds to 2,000,000 litres. It supplies the 120-hectare Reiherstieg district with climate-friendly heat and feeds renewable electricity into the Hamburg distribution grid.

Stegerwaldsiedlung, Cologne

Photo: EnergyAgency.NRW51063 Cologne-Mülheim: The state of North Rhine-Westphalia has named the Stegerwaldsiedlung in the Cologne district of Mülheim as the 87th climate protection estate. With 968 kWp, it has the largest roof-integrated PV system on a housing estate in NRW and the third largest in Germany. 689 residential units of the Cologne housing estate from the 1950s were refurbished for energy efficiency and the energy generation systems were renewed. Completion: 2019

WohnMichel in Michendorf

14552 Michendorf: Plot: 17,000 m², three houses in the 1st construction phase as two-storey apartment buildings and 500 m² living space each with eight or nine apartments. Together 25 WEs. Completion: 2019

PV housing estate with 825 kWp in Gelsenkirchen-Schaffrath

45897 Gelsenkirchen-Schaffrath: by 2018, it was the largest German solar housing estate with a peak output of 825 kWp. The 71 existing buildings with a total of 422 apartments and 27,420 m² of living space were renovated for energy efficiency. Operator: THS Wohnen GmbH (today: VIVAWEST Wohnen GmbH). Completion: 2008

Climate and timber construction quarter "Ellener Hof

28329 Bremen-Osterholz: At least 500 apartments are planned, which will offer a new home to around 1,000 Bremen residents of all ages and from different social classes and cultures. In close cooperation with the Free Hanseatic City of Bremen, the Bremer Heimstiftung, as the owner of the site, is therefore not only working on new living space. Social institutions, clubs and cultural institutions will also enrich the "Ellener Hof Foundation Village" in the future. In addition, the partners are focusing on attractive green spaces. The respectful treatment of the valuable stock of trees, bushes and vegetation on the property is the basis and an integral part of all planning. Construction began on 7.9.2018. Planned completion: 2025(?)

New building of the Federal Environment Agency in Dessau

Image 11106844 Dessau-Roßlau: New building of the Federal Environmental Agency. Planning: sauerbruch & hutton architects. Dessau has been the headquarters of the Federal Environment Agency since 2005. Around 900 of the approximately 1,500 employees work here in a modern office building constructed according to ecological standards. Awarded the German Seal of Approval for Sustainable Building in Gold in 2009. The seal of quality awarded by the Federal Ministry of Building and the German Sustainable Building Council honors exemplary new administrative and office buildings.

Westend Berlin-Charlottenburg

Westend Berlin-CharlottenburgIn-Entstehung_gr100px_200dpi14055 Berlin-Charlottenburg: 665 units as a new housing estate with two-, three- and four-room apartments. Furthermore, single-family homes, shops, medical practices and a daycare center. Mixture of rental and owner-occupied apartments.

On 3/14/2018, after 5 years of negotiations, the contract was signed. The company expects construction to start at the end of 2019, and the last construction phase could be completed in 2025.

Low-energy house standard, CHP, photovoltaic system, sustainable mobility concept with bicycle parking in front of the front doors and e-bikes, electric cars in the car-sharing fleet. Quarter with Cradle to Cradle certification and healthy building materials, green roof.

Housing project "Nestwerk

01326 Dresden-Pillnitz: 9 residential units, 40 residents. Ecological apartment buildings according to passive house standard. Architectural partnership Reiter and Rentzsch, Dresden. Occupation: 2001


04249 Leipzig-Knauthain: 665 WE, urban planning: Joachim Eble Architektur, decentralized settlement units; solar orientation (90% of the WE are SSW or SSO oriented) and integrated into the open space concept of so-called landscape chambers; resource-saving use of building land with minimized development effort in the area of residential development; ecological land use with high nature and open space quality on the compensation areas close to the settlement.

Exhibition grounds Oederan

09111 Oederan Chemnitz: 622 RESIDENTIAL UNITS. Model project for the Chemnitz technology and business park solaris, as well as the Stadtbau- und Wohnungsverwaltungsgesellschaft. 17 blocks of flats were renovated, 7 of them were equipped with 100 sqm collector surface each. Year of construction: 2000

IBA Block 6

panorama_pp_kl10963 Berlin-Kreuzberg: "International Building Exhibition", 106 WEs, completion 1987 / optimization and redesign 2006, grey water recycling plant for 250 tenants, saving 3 million litres of fresh water annually.

IBA Block 103

10963 Berlin-Kreuzberg: International Building Exhibition Berlin "Block 103". Redevelopment: 1991

Möckernkiez eG Berlin

MoeckernKiez-110965 Berlin: Cooperative for self-managed, social and ecological living eG. In the Möckernkiez model project, 471 residential units were created in 14 residential buildings. They were built according to the passive house standard and ecological building criteria. 0.21 parking spaces per unit. Property size: 30,000 m². It is barrier-free throughout and designed to be free of car traffic at the neighbourhood level. The Möckernkiez is located directly adjacent to the southeastern entrances of the Park am Gleisdreieck. Completion: 2018

WEG "Am Rundling

dream of life12487 Berlin-Johannisthal: 20 houses with 22 residential units (KfW 40-60) for 70 small and large people, ecological housing project. Number of parking spaces: 0.3 PkWs/WE, 100 m² solar collectors (50 kW), 23 kW photovoltaic system, 99 kW wood pellet system (with exhaust gas heat exchanger, downstream flue gas scrubber and condensate heat exchanger), 600 m³ grey water system, completion: 2007

PlusEnergy houses in Berlin-Adlershof

Architecture: Deimel Oeschläger Architekten Partnerschaft, Berlin. Photo: A. Kroth


12489 Berlin-Adlershof: Climate-neutral home for 128 tenants in KfW 55 efficiency house. Gross floor area: 11,170 m2. Planning: Deimel Oelschläger Architekten. Completion: 2017