The only 3-in-1 photovoltaic solution
combining 3 functions in positive synergy
The Oasis BioSolar hydro biosolar roof system provides a unique response to sustainable city challenges and new regulatory requirements.
Discover the Oasis BioSolar Solution in Video
1
Assembly of HydroStock Trays
2
Laying of Geotextile on Trays
3
Installation of Modulo Plates on the Geotextile
4
Tray + Filter + Plate Assembly Completed
5
Installation of Rails on Modulo Plate
6
Installation of Feet in Rails
7
Mounting of Photovoltaic Panels and Connection
An innovative vegetated photovoltaic system
with unique performance
HYDROSTOCK Trays
Placed directly on the waterproofing membrane and connected to each other by connectors ensuring water passage, Hydrostock trays capture rainwater (storage capacity of 52 L/m2) and thus form a true water table on the roof.
Capillary Wicks
They allow water stored in the Hydrostock tray to rise by capillary action to the substrate and plants. They thus ensure natural sub-irrigation of the green roof complex.
Flow
Regulator
A patented and unique solution, the flow regulator allows delayed release of rainwater. A floating system equipped with double filtration, it ensures a constant micro-flow (up to 1 L/s/ha) and does not clog.
Water Distribution Layer
At the interface between the wicks (below) and the substrate (above), it ensures water passage between these elements and allows its homogeneous diffusion throughout the green roof complex.
MODULO Plate
Covering the Hydrostock trays, the Modulo plate offers high mechanical resistance and supports significant loads and stresses.
It allows the fixation of rails and feet, supports for photovoltaic panels
It constitutes the support for the green roof complex (5 to 30 cm of substrate).
The Modulo plate has openings to allow water circulation: drainage and capillary rise. It is multimodal and can also accommodate other installations: decking, raised paving slabs, planters, gravel…
Vegetation
Several types of vegetation covers can be developed according to project criteria (landscaping expectations, climate, permissible overload, investment and maintenance budgets, etc.). Near solar panels, the use of low-growing, low-maintenance cover plants will be preferred (mainly ground cover perennials). The shade from photovoltaic panels influences the diversity and development of the vegetation cover. The different layers of vegetation and the shade from the panels create preferred habitats for biodiversity.
LP Flore Substrate
The substrate ensures the ballasting of photovoltaic panels. Specially developed by Le Prieuré, it promotes good development of the vegetation cover.
The substrate also allows the evaporation of water stored under the photovoltaic panels, thus cooling them.
Photovoltaic
panels
The fixing system of the Oasis BioSolar solution is compatible with most photovoltaic panels sold on the market.
It allows for particularly easy installation, with a slope between 0 and 10° for optimized electrical production throughout the day.
Fixings (rails + feet)
The panels are fixed, in portrait or landscape mode, on 2 longitudinal rails screwed onto transverse gantries.
These gantries consist of a set of omega feet, adjusted on a transverse rail screwed into the supporting Modulo plates. 3 sizes of feet + extension allow for a wide range of substrate thicknesses, from 5 to 30 cm.
The fixing system is entirely made of Magnelis steel, resistant and anti-corrosion.
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For each hydro biosolar roofing project, our design office develops a customized solution.
Do you still have questions?
What is biosolar?
Biosolar technology for roofs, also called biosolar roofing, is an approach that combines the benefits of solar energy and vegetation on the same roof.
A biosolar roof generally consists of photovoltaic solar panels integrated with a green roof system (or vegetated roof). The solar panels capture solar energy and convert it into electricity, while vegetation is grown on the roof to provide environmental and aesthetic benefits.
Integrating solar panels on a green roof has several advantages. First, solar panels produce clean electricity from solar energy, helping to reduce dependence on fossil fuels and greenhouse gas emissions. Additionally, the vegetation on the roof provides additional thermal insulation, helping to reduce energy consumption for heating and cooling buildings.
The green roof also offers ecological benefits by promoting urban biodiversity, reducing the urban heat island effect, and contributing to stormwater management. Plants absorb rainwater, thus reducing runoff and helping to prevent flooding. Moreover, they filter air pollutants, improving air quality in urban areas.
What are the differences between a biosolar roof and Oasis BioSolar?
Oasis BioSolar is a hydro biosolar roof that performs 3 functions: energy production, stormwater management, and contribution to biodiversity. These functions are enhanced through their synergy.
- Water/Biodiversity Synergy: The Oasis system captures rainwater drained by the vegetation complex. It returns it to the plants through capillary wicks. The additional water reserve provided by the Oasis system (50 to 70% more than a classic system) benefits the plants and allows for greater plant diversity.
- Water/Energy Synergy: On classic solar power plants, the electrical production of photovoltaic panels is limited during periods of high heat to avoid overheating. The enhanced evaporation of the Oasis system reduces the temperature under the panels, thus allowing increased energy production.
- Energy/Biodiversity Synergy: In return for the cooling that solar panels benefit from via water evaporation, they allow vegetation to enjoy shaded areas. These favor the development of diverse flora and a privileged living space for certain insects, gastropods, and arthropods. The vegetation on biosolar roofs develops around the panels and partially underneath, depending on the inclination and orientation of the panels. It should be low enough not to shade the panels, and regular maintenance is necessary to prevent the development of species that are too tall.
Why is Oasis BioSolar a Response to New Regulatory Requirements?
Article L 171-4 of the Construction and Housing Code stipulates that 'buildings or parts of buildings [...] for commercial, industrial or artisanal use, warehouse constructions, [...] constructions of buildings or parts of buildings for office use [...] must incorporate either a renewable energy production process, a vegetation system [...] promoting the preservation and reconquest of biodiversity, or any other device [...] promoting [...] rainwater infiltration or evaporation.'
In this sense, the Oasis BioSolar hydro biosolar roof provides a concrete response. Indeed, the system optimizes water resources for the benefit of flora and fauna. The vegetation and photovoltaic panels create shaded spaces, a refuge for biodiversity. The solar panels intercept rainwater which will be stored and returned to the plants through capillary wicks. In addition, the evaporation from the vegetation complex helps cool the photovoltaic panels, thus optimizing their electrical yield.
How is the Biosolar Roof Implemented?
The Oasis BioSolar system has been designed for simplified installation in 7 steps:
- Assembly of hydrostock trays.
- Installation of Modulo plates on the trays.
- Fixing of rails on the plates.
- Mounting of feet in the rails.
- Spreading of the substrate.
- Installation of vegetation.
- Assembly of photovoltaic panels and Oasis BioSolar connection.
