CO2 neutral buildings in CH-Männedorf - fully self sufficient

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Last modified by the author on 31/03/2021 - 08:39
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New Construction

  • Building Type : Collective housing < 50m
  • Construction Year : 2019
  • Delivery year : 2020
  • Address 1 - street : Saurenbachstrasse 8707 MäNNEDOERF, Switzerland
  • Climate zone : [Dwa] Humid Continental Hot Summer, severe, dry winter
  • Net Floor Area : 1 884 m2
  • Construction/refurbishment cost : 7 200 000 €
  • Number of Dwelling : 16 Dwelling
  • Cost/m2 : 3821.66 €/m2

Proposed by :

Certifications :

  • Primary energy need
    40.07 kWhpe/m2.year
    (Calculation method : Other )
Energy consumption
Economical buildingBuilding
< 50A
A
51 à 90B
B
91 à 150C
C
151 à 230D
D
231 à 330E
E
331 à 450F
F
> 450G
G
Energy-intensive building

This building received a mention at the national and international levels for the Energy & Temperate Climates Prize of the Green Solutions Awards 2020-21.

The latest lighthouse project of Umwelt Arena Schweiz in cooperation with exhibition partners and the HSR Hochschule für Technik Rapperswil is the first residential building in the world with an intelligent and consistent combination of photovoltaics, battery storage, synthetic e-gas/biogas and intelligent energy management (hybrid box). All this at amortizable costs for the building owner and the residents receive heat and electricity at zero cost.  

A self-sufficient building with high-tech-eco-systems and products :

- A beautiful project realized by the owner of the Umweltarena in CH-Spreitenbach and designed by René Schmid Architekten AG in CH-Zurich. 

- The buildings produce 105'900 kWh per year by BIPV-elements,  PV-rooftop-installations, wind-turbine and other sources. The unused energy (summer) is transferred and turned into synthetic methane (which is CO² neutral) and can be re-electrified in winter. So the buildings produce more than consume.

- What is available as production and storage of renewable energies has been implemented.

- The tenants do not have to pay for electricity and heating. 

- Some of the BIPV-elements are white - which is unique and gives new architectural possibilities.

 

Photo credit

Solaxess

Contractor

    René Schmid AG, CH-Zurich // Solaxess SA CH-Marin

    Mr. René Schmid // Peter Röthlisberger

     http://www.reneschmid.ch

Construction Manager

Stakeholders

Type of market

Realization

If you had to do it again?

Always with pleasure - with even more and newer technologies.

Building users opinion

Facinated.

Energy consumption

  • 40,07 kWhpe/m2.year
  • 75 502,00 kWhpe/m2.year

    • Other

    Houshold: 43'357, Hotwater 15'849, Heating 16'296

More information

This buildings produce more than they consume.

Real final energy consumption

    40,07 kWhfe/m2.year

Systems

    • Geothermal heat pump
    • Combined Heat and Power
    • Heat pump
    • Water chiller
    • Natural ventilation
    • Solar photovoltaic
    • Heat pump (geothermal)
    • Micro wind
    • Biogas boiler
    • Energy recovery from waste
    • Other, specify
  • 100,00 %

    • Photovoltaic system:
    A ventilated photovoltaic façade envelops the entire building. The building material (facade panels) was replaced with active photovoltaic elements. The photovoltaic panels are directly screwed to the substructure in wood. In order to make this simple installation possible, the photovoltaic modules have been specially prefabricated with mounting holes.
    White and dark, colored and textured photovoltaic facades like the ones we use in Männedorf serve as weather protection and energy generation at the same time.

    Synthetic Methane:
    Some of the excess solar power generated by the Männedorf superstructure in summer is sent to the power-to-methane pilot plant at the University of Applied Sciences in Rapperswil, where it is used to produce synthetic methane. This gas is CO2-neutral and is temporarily stored in the gas network, from where it is made available again to the residential complex in Männedorf in winter. There, the so-called Hybridbox® is used as the most important link, which, as an intelligent energy system, produces electricity and heat from the CO2-neutral "synthetic gas / biogas" as required.

Urban environment

  • 2 879,00 m2
  • 2,00 %

Product

    Beautiful white solar modules

    Solaxess SA

    Peter Röthlisberger

     http://www.solaxess.ch

    Gros œuvre / Structure, maçonnerie, façade

    With the unique color-giving technology of Solaxess PV-Modules are transferred into a construction material. Also in white and bright colors. No solar-cells are visible - even not from close.

    Loved by architects and construction companies.

Construction and exploitation costs

  • 9 000 000 €

GHG emissions

  • 40,00 year(s)

Building candidate in the category

Energy & Temperate Climates

Energy & Temperate Climates

Green Solutions Awards 2020-2021
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 CO2-neutral only renewable energies used white solar modules BIPV renewables Green Solutions Awards heat smart building buildings photovoltaic solar energy energy efficiency 
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S Sebastien Eberhard
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Sebastien Eberhard

CEO

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Green Solutions Awards 2020-2021