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At the end of the 90s the state government of North Rhine-Westphalia and the EnergyAgency.NRW launched the campaign for the construction of 50 solar energy housing estates in North Rhine-Westphalia (NRW).

The aim of the project is, on the one hand, to greatly reduce the energy requirement through appropriate solar construction methods and, on the other hand, to cover the remaining energy needs with solar energy for the most part. The ministries have coordinated their subsidy programmes for this project.

The campaign places specific requirements on the construction of solar energy housing estates:

• Heat energy consumption: max. 15 kWh/m²a (passive house standard) or max. 35 kWh/m²a
• Production of hot water: The solar energy contribution is to be at least 60 % of the energy requirements.
• The production of electricity by photovoltaics: At least 1 kWp  per housing unit. 

Building with the sun -
50 solar energy housing
estates in North Rhine-
Westfaliat

At least two of the three requirements are to be fulfilled in order to obtain the status of a "Solar energy housing estate".

A brief description of the project with two examples can be downloaded here (PDF, 500 kB).

Further requirements are described in a planning guide “Planungsleitfaden - 50 Solarsiedlungen in NRW” (see button “Broschüren”)






 

The following solar energy housing estates were already built:

	Aachen Solar energy housing estate with 43 housing units and 2 office buildings Photo: Prof. Slawski, Essen Project information Aachen
	Altenberge Solar energy housing estate with 31 housing units in the region of Münster Photo: BIB GmbH, Laer Project information Altenberge
	Ascheberg-Herbern Residential home for the elderly and for disabled persons with 60 units in passive-house standard.
	Beckum 20 houses with good insulation standard and solar thermal collectors for hot water supply Photo: EnergyAgency, Düsseldorf
	Bielefeld Solar energy housing estate with 45 housing units in detached, semidetached and terraced houses and 21 units in multiple dwellings. An independent office has carried out the quality assurance of the buildings. The local heat supply system is operated by the owners. Project information Bielefeld
	Bochum, Claudius-Höfe 69 units, additional offices Heating demand < 35 kWh/m²a (3-liter-house standard) 60 % of hot water supplied via solar thermal collectors Photovoltaic systems
	Bonn-Vilich  52 units Heating demand < 35 kWh/m²a (3-liter-house standard) partly heat pumps, partly central heating with wood pellets Photovoltaic systems
	Detmold 20 units passive-house standard 60 % of hot water partly supplied via solar thermal collectors partly additional photovoltaic cells
	Dormagen Nursing home for 85 persons and separate building with 34 units for assisted living. The houses are built in passive-house standard with ventilation systems and with solar thermal collectors. Photo: EnergyAgency, Düsseldorf
	Düsseldorf-Garath 122 units in multiple dwellings built in the 3-liter-house-standard. 40 % of hot water is supplied via solar thermal collectors
	Düsseldorf-Lörick Solar energy housing estate (existing buildings) in Düsseldorf with 95 units. 65 % reduction of CO2-emissions through improvement of thermal insulation and installation of solar thermal collectors. Photo: EnergyAgency, Düsseldorf
	Düsseldorf Medienhafen Residential and office building with solar thermal system and ventilation with heat recovery.
	Erkelenz Solar energy housing estate with 22 passiv houses (heating demand 15 kWh/m²a) and solar thermal collectors for hot water supply Photo: EnergyAgency, Düsseldorf
	Gelsenkirchen-Bismark Structural change in the Ruhr Region. A solar energy housing estate will be developed in Gelsenkirchen on a former coal mine site. Project information Gelsenkirchen-Bismarck
	Gelsenkirchen-Lindenhof Solar energy housing estate (existent buildings) in Gelsenkirchen Photo: Prof. Slawski, Essen Project information Gelsenkirchen-Lindenhof
	Gelsenkirchen-Schaffrath Refurbishment of 422 units with additional large photovoltaic plant (825 kWp)
	Köln-Bilderstöckchen Solar energy housing estate (existent buildings) in cologne (district Bilderstöckchen) Photo: Ingenieurbüro INCO, Aachen Project information Köln-Bilderstöckchen
	Köln-Bocklemünd Solar energy housing estate (existent buildings) in cologne (district Bocklemünd) Photo: Prof. Slawski, Essen Project information Köln-Bocklemünd
	Köln-Deutz A new residential building with 39 units was erected in cologne, in a quarter east from the city. Photo: Ingenieurbüro Ortjohann, cologne Project information Köln-Deutz
	Köln, Friedrich-Karl-Höfe Solar energy housing estate with 143 units near the city of cologne. Central heating and hot water supply via wood chips, natural gas and solar thermal collectors.
	Köln-Mülheim Solar energy housing estate (existent buildings) in cologne (district Mülheim) Project information Köln Mülheim
	Köln-Niehl Solar energy housing estate (redevelopment of existent buildings) with 345 units in cologne. Apart from intensive insulation measures solar thermal collectors are used for hot water supply. Additional new attic flats were built.
	Köln-Nippes Solar energy housing estate with 33 units as part of a car-free urban area.
	Köln-Ossendorf Solar energy housing estate (existent buildings) in cologne (district Ossendorf) Photo: GAG, Cologne Project information Köln-Ossendorf
	Köln-Riehl Solar energy housing estate (existent buildings) in cologne (district Riehl) Project information Köln-Riehl
	Köln-Zollstock Solar energy housing estate (existent buildings) in cologne (district Zollstock) with 39 units for older people Project information Köln-Zollstock
	Leverkusen Passive house estate with 32 terraced houses in timber construction. Heating and hot water via heat pumps and solar thermal collectors. Photo: EnergyAgency, Düsseldorf
	Lüdinghausen Solar energy housing estate with 20 housing units in the region of Münster Photo: BIB GmbH, Laer Project information Lüdinghausen
	Mönchengladbach-Eicken Solar energy housing estate with 58 units in existent buildings and 12 units in a new building with solar thermal system and ventilation with heat recovery.
	Mönchengladbach-Giesenkirchen Geriatric home for 84 elderly people in passive-house standard with photovoltaic system
	Münster-Gievenbeck New passive house building with 20 flats in the north of North Rhine-Westfalia. Heating by heat pumps and solar thermal collectors. 20 kWp Photovoltaic system
	Münster, Wismarweg 39 units in multiple dwellings were built in passive-house standard and have ventilation systems with heat recovery. Additional solar thermal collectors for hot water supply Photo: EnergyAgency, Düsseldorf
	Rheda-Wiedenbrück Solar energy housing estate with 40 housing units in detached, semidetached and terraced houses. The houses were built by private owners and a few regional contractors. Project information Rheda-Wiedenbrück
	Rhede Solar energy housing estate with 29 detached and semidetached houses with 36 units. The houses were built by private owners. Project information Rhede
	Schwerte, Märkische Str. Refurbishment of 5 multi-family houses with biomass heating and solar thermal system.
	Schwerte, Schützenstr. Solar energy housing estate with 118 units in new buildings and 19 units in existent buildings with biomass heating and photovoltaic system
	Senden Solar energy housing estate with 23 completed housing units in the region of Münster. Enlargement by further 24 units. Photo: EnergyAgency, Düsseldorf Project information Senden
	Siegen Solar energy housing estate (redevelopment of existent buildings) in with 54 units Photo: Wohnstättengenossenschaft Siegen eG
	Soest 20 units the demands for the project will be fulfilled individually
	Steinfurt The solar energy housing estate in Steinfurt-Borghorst has a local heat supply network and a long-term heat storage, in order to be able the to use the solar gains also still in heating season. Project information Steinfurt-Borghorst
	Troisdorf Solar energy housing estate with 20 terraced houses. They are built in a very good insulation standard (heating demand 35 kWh/m²a). Each house has a photovoltaic system. Photo: EnergyAgency, Düsseldorf
	Westerkappeln Solar energy housing estate with 27 housing units in the region of Münster. Central heating station with wood pellets; each house with PV system Photo: EnergyAgency, Düsseldorf

The following estates are under construction::

Castrop-Rauxel

• 30 - 40 units
• the demands for the project will be fulfilled individually

Dorsten

• 32 units
• passive-house standard
• 1/3 of electricity supplied via photovoltaic cells

Dortmund

• 44 units
• 60 % of hot water partly supplied via solar thermal collectors
• photovoltaic cells, 1 - 1,28 kW_p for each unit

Erftstadt

• 57 units
• partly low-energy-house-standard,
  partly thermal insulation 60 % below "1995 Heat Insulation Regulation"
• 60 % of hot water supplied via solar thermal collectors
• partly 1/3 of electricity supplied via photovoltaic cells

Herten

• 42 units
• heating demand < 35 kWh/m²a (3-liter-house-standard), partly passive-house standard
• local heat supply via cogeneration unit (biogas)
• photovoltaic systems

Köln-Wahn

• 168 units
• Passive house standard
• solar thermal collectors

Krefeld

• 31 units, timber construction
• low-energy-house standard
• hot water partly supplied via solar thermal collectors
• electricity supplied partly via photovoltaic cells

Oberhausen 

• 36 units
• low energy houses
• CO₂ neutral energy concept for heating and hot water
• by central heat pump and photovoltaic system (94 kWp)