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Energy storage

In addition to batteries for electricity storage, large water tanks have been in use for some time as heat storage systems in housing estates and neighbourhoods. Furthermore, hydrogen is mostly used in combination with efficient fuel cells as energy storage. In combination with heat pumps and with microelectronic controls, new possibilities of load management arise, whereby the systems can be designed economically. Some typical projects with such energy storage systems are presented here.

The projects are displayed in descending order of size in the default view.

Go directly to: Electricity storage I Heat accumulator I Hydrogen storage

Central power storage

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

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Climate protection district with "cold local heating

D - 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.

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Energy Plus Quarter Vellmar North

D - 34246 Vellmar-Nord: 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

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Heat accumulator with water

Solar City Neckarsulm-Amorbach

74172 Neckarsulm-Amorbach: the largest solar local heating project to date with a 150,000 m³ -The storage capacity was 65,000 m³ in 1997 and 115,000 m³ in 2001. The entire new development area with a total of 4,000 residential units has been realised in low-energy construction and is supplied via various local heating islands and CHP units. 2004: a biomass heating plant was put into operation. A housing estate with 1,300 units and a school are supplied by a solar system with seasonal storage.

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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

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Solar residential complex "Helios

18055 Rostock: 108 apartments in 11 buildings. Apartment sizes between 44 and 93 m². Location: Brinckmanshöhe residential park. Completion: 2000

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Energy storage of the Stadtwerke Heidelberg

69123 Heidelberg-Pfaffengrund: Water from the district heating network is stored in the storage tank and fed back in when required.

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Solar City Wiggenhausen

88045 Friedrichshafen: 570 apartments, 40,000 sqm living space, 4.2 million euros for solar technology = 5,500 euros additional investment per apartment = 83 euros/sqm living space, research project of ITW, Stuttgart, solar coverage ratio is of 50 % (heating and hot water), 4,056 sqm solar collectors, 12,000 cubic meters storage (33 m diameter, 20 m high)

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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

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Solar local heating Ackermannbogen

80797 Munich: to 45% solar supplied housing estate consisting of 4 large blocks of flats as well as eight smaller town houses with a total of 319 flats (30,400 m² floor area). The residential buildings were constructed and marketed by five property development companies. The solar district was the third of four construction phases of the Munich development "Ackermannbogen" (total size: 2,200 apartments, 500 workplaces and 9.2 ha of new green areas). Completion: 2006

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Solar settlement Bramfeld

22175 Hamburg-Bramfeld: 130 WE, one of the larger solar local heating projects with a 4,000 m³-water storage tank. Completion: 2000

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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

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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.

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NRW Solar Settlement "Steinfurt-Borghorst

48565 Steinfurt-Borghorst: 42 units, project with solar local heating and seasonal storage (1st project of "50 Solar Housing Estates NRW"). Completion: 2000

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"Solarcity" Hanover Kronsberg

30539 Hanover-Kronsberg: Sub-project of the Expo 2000 new housing development. 106 apartments with large solar collectors on the roofs, as well as solar local heating with seasonal storage. It is located in the southeastern part of the district. Completion: 2000

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Wooden housing estate Ingolstadt

85049 Ingolstadt: With 116 units in timber construction out of a total of 142 units, this is one of the larger timber housing estates in Germany. It was realised in three construction phases, with 81 units by bogevischs buero architekten & stadtplaner gmbh, Munich; as well as 35 by Behnisch Architekten, Stgt. and 26 units by Brand Architekten, Ingolstadt (in mineral construction); client: St. Gundekar-Werk Wohnungs- und Städtebaugesellschaft mbH, Schwabach. Completion: 2011

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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

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Ford housing estate in Cologne

50735 Cologne-Niehl: Redevelopment and addition of 11 apartment blocks with rental apartments. 300 flats before refurbishment, 345 flats after refurbishment. Average 47 m² before refurbishment, approx. 55 m² after refurbishment. Architecture: ARCHPLAN Münster. Client: State development company (LEG Wohnen NRW). Completion: 2010

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Solar housing estate in Köngen

73257 Köngen: Solar-supported local heating concept (hot water preparation by means of large collectors), low-energy construction. 72 WE

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Hydrogen storage

Energy self-sufficient solar house

79114 FreiburgModel project of the Fraunhofer Institute for Solar Energy Systems (FhG ISE); the entire energy consumption of a single-family household is covered by the solar radiation reaching the building. Special features are a solar hydrogen gas stove and a fuel cell, as well as several other new developments. Completion: 1992

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

73728 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

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Hy-Solar building in Stuttgart

70569 Stuttgart-Vaihingen: A hydrogen research institute that has been a listed building since 2019 Completion: 1987

Links
www.behnisch-partner.de/projects/civic-buildings/hysolar-institute
https://stuttgartwege.blogspot.com/2019/06/hysolar-institut-der-universitat.html

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