building 2050 urdorf



Onyx Solar has supplied its crystalline silicon photovoltaic glass that has been installed as a photovoltaic balustrade in the balconies of ‘Building 2050 Urdorf’. It is located in the Swiss canton of Zurich, in the village of Urdorf.


frolunda culture house photovoltaic curtain wall onyx solar



  • superficieTotal Area - 346 M2
  • electricidad generadaElectricity generated in 35 years  - 696,918 kWh
  • puntos de luzTotal lighting points operating 4 hours per day in 35 years - 1,369 lighting points
  • emisiones CO2 evitadas CO2 emissions Avoided in 35 years - 380 Tons of CO2
  • barriles petroleo ahorradosBarrels of oil saved in 35 years - 410 barrels


Example of a feasibility study of crystalline silicon photovoltaic curtain wall in Urdorf:


  • superficie Payback time  < 7 years
  • electricidad generada Internal rate of return (IRR)  16,4 %




* Onyx Solar Energy S.L. makes no representations, warranties or guarantees, whether express or implied, that the content in the report is accurate, complete or up to date.



As a whole, the installation is made up of 135 crystalline silicon photovoltaic glasses measuring 1,185 mm high and 9 different widths to perfectly fit the balcony requirements. Designed with a glass configuration of 4+4 mm, the units are finished in Solaxess white satin-finish on the front and a black ceramic frit on the back for optimum aesthetics. 



photovoltaic balconies building 2050 urdorf 3



This lighthouse project, "Building 2050 Urdorf," has the potential to be replicated because it contributes to the achievement of the federal energy strategy as well as illustrates a method of counteracting winter power shortages. 


With 39 apartments, this CO2-neutral residential development is entirely intended for the tenants as well as for the environment. With the support of home automation and a smart home system, tenants are able to enjoy additional comforts without incurring any energy costs associated with household electricity, heating, and cooling. The excess electricity from the summer is used to produce renewable gas.



photovoltaic balconies building 2050 urdorf 4



One of the aims of the Swiss Environmental Arena Foundation is to inform and sensitize the population and investors with regard to energy efficiency.


By integrating the balconies into the building volume, the shadow cast on the façade was minimized and the yield from solar power was thus optimized. 



photovoltaic balconies building 2050 urdorf 5



A collaboration between Onyx Solar and Solaxess was undertaken in the design, development, and implementation of the photovoltaic glass used in the balconies of this project.




Owner: Swiss Environmental Arena Foundation

Architect: René Schmid Architekten AG Zurich

Real Estate Developer: Alex Gemperle AG



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