PHOTOVOLTAIC curtain wall


Onyx Solar has supplied its amorphous photovoltaic glass to be part of a one-of-a-kind-project remodelation where the innovative technology was installed as a curtain wall solution in the Frölunda Culture House located in the city of Gothemburg, Sweden.






frolunda culture house photovoltaic curtain wall onyx solar



  • superficieTotal Area - 251 M2
  • electricidad generadaElectricity generated in 35 years  - 97,550 kWh
  • puntos de luzTotal lighting points operating 4 hours per day in 35 years - 192 lighting points
  • emisiones CO2 evitadas CO2 emissions Avoided in 35 years - 65 Tons of CO2
  • barriles petroleo ahorradosBarrels of oil saved in 35 years - 57 barrels


Example of a feasibility study of amorphous silicon photovoltaic curtain wall in Stockholm:


  • superficie Payback time  < 9.2 years
  • electricidad generada Internal rate of return (IRR)  9.7 %




* 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.


The installation has 251 m2 and it is composed of exactly 161 amorphous silicon glass units with a glass configuration of 4+3+4 mm.


The customization work in this particular project has been complex: the PV glass has been designed and manufactured in more than 60 different sizes to perfectly adapt to the demanding size and shape requirements of the existing building.



photovoltaic curtain wall frolunda culture house 4



All glass modules feature 4 mm tempered glass Low-E to minimize the passage of infrared and ultraviolet light, without affecting visible light transmission. It also has a double 18 mm argon chamber for additional thermal and acoustic insulation, preventing the entry of cold from the outside and maintaining a comfortable temperature.



photovoltaic curtain wall frolunda culture house 3



Inaugurated in 1980, Frölunda Cultural House (Frölunda kulturhus in Swedish) hosts a number of differente municipal insitutions, including library, theater and indoor swimming pool. In addition there is a cinema, a gym, and an indoor hall for, among other things, handball. The house is said to have over 2,000 visitors daily.



photovoltaic curtain wall frolunda culture house 5


The city of Gothemburg is one of the active members of the Global Covenant of Mayors for Climate & Energy, a global coalition of municipal pioneers committed to the fight against climate change. All these mayors acknowledge the importance of decreasing CO2 emissions and they are encouraging the incorporation of innovative technologies and solutions within their cities, such as Onyx Solar's Photovoltaic Glass. More than 11,000 cities of 60 countries around the world have committed to the pact, totaling 340 million inhabitants.




Owner: Göteborgs Stad (City of Gothemburg)

General Contractor: Byggfokus Väs Entreprenad AB

Architectural envelope: Ferm & Persson AB


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