Vertical solar installations for biosolar roofs
Vertical solar installations offer a unique opportunity for combining solar power production with green roofs. The combination of renewable energy and green areas will play an important role in increasing sustainability of urban areas in the future.
Our green roof solar research is financed by Smart Oslo and RFF Oslo. We also have research collaborations with Oslobygg KF, Sempergreen and Eindhoven University of Technology.

Methods and main findings
Energy yield with PV + green roof
Our research installations give valuable opportunities to assess the beneficial effects of green roofs on solar panels and vice versa.
Learn moreBenefits of a green roof
A green roof has several beneficial effects. Among them, the opportunity to increase yield from a solar installation.
Learn moreThe future of sustainable urban rooftops
In the future we have to be more conscious about how we utilize available area in cities, including the sustainability potential of urban rooftops.
Learn moreThe "green effect" on solar production
Our first vertical solar panel installation on a green roof was installed in 2022 on Løren school in Oslo. Our results show good energy yield.
The green roof gives higher albedo than a conventional flat roof and a cooling effect that increases the energy production.
The green roof has withstood extended dry periods, and the sedum shows signs of better growth in the areas underneath the solar panels than beside them.

Benefits of a green roof
- Increase water retention and delay stormwater run off
- Insulate buildings, storing heat in winter and reflecting heat in summer
- Decrease surrounding temperatures, which will increase PV efficiency
- Help biodiversity, especially pollinators
- Bind CO2 and local air pollution

The future of sustainable urban rooftops
Utilizing urban areas to the fullest will play a large part in the mitigation of climate change and its effects. We believe vertical solar provides a unique opportunity to effectively deploy green roofs and solar panels using the same area.
We believe the results gathered at our research installations will contribute important information for the increasing focus on sustainable urban rooftops.
VPV units for green roofs
Get in touch
Contact us if you have an interest in a collaboration on vertical bifacial solar installations.
