Bâtiment universitaire Breguet 2, Neuchâtel - Roof only - Efficiency: 13.82%
Solution Year
2024
Building Age
1900-1944
Listed Building
Yes
Conservation Area
Yes
Documenting Institution
LMNT Consultancy
Location
2000 Neuchâtel NE, Switzerland - 434m
Building Type
Educational/Research
Structure
information not available
The Building
Bâtiment universitaire Breguet 2, Neuchâtel
The roof of the Breguet 2 building required urgent rehabilitation after years of wear and tear. In light of the historical importance of this building, its restoration was undertaken with great care.
The Solution
What is the Solution?
The Freesuns solar tiles, combining traditional aesthetics and innovation, allowed this roof to be restored with elegance and durability. These tiles offer optimal protection against the elements and improve the energy efficiency of the building, embodying the perfect fusion between heritage and modernity.
Why Does it work?
The solar tiles are perfect for such listed buildings, providing here 100% full coverage without altering the visual aspect of this heritage protected building.
PROS
- Adaptable to site/building requirements (colour, texture, shape)
- Resemblance to tiles (mimetic).
- Preservation of the appearance of the listed building while producing energy in the roof.
CONS
- Lower energy performance than standard modules.
- Number of elements and "one-off" pieces.
- More demanding to implement.
- Much higher costs than a standard solution.
Type of installation
Replacement (building integrated - BIPV)
Part of the building
Roof only
Mounting system
information not available
Orientation
Divers orientation from S-E to N-O via S-W and N-E
Slope
Divers slopes from 25° to 55°
Area (m²)
1128
Availability
Yes, available on the market
Manufacturer
Freesuns
Model
Solaris Heritage
PV module format
Customized modules
PV module format max
Basic dimensions of the rectangular tile : 700 x 460 mm (700 x 175 mm)
PV module type
Glass-Glass
PV cells technology
c-silicon
PV module efficiency
13.82%
Total PV power
119 kW
Surface PV power (W/m²)
138.2 W/m2
PV energy production
abt. 95'000 kWh/yr
Weight
47 kg/m2
Dummy modules used?
Yes
Frame
No
Overlapping
Yes
Colorization
No (black modules)
Colorization technology
No colorization
Glass structure
Mat/Satin-finished
Before retrofit
After retrofit
Assessment
PV installation type
Replacement (building integrated - BIPV)
PV position
Roof only
Coloured PV
Yes
Module efficiency
10% < Efficiency <= 15%
Building alteration
Yes, the building envelope was modified in a non reversible way
Investment cost
High
Circular approach
No
Location
2000 Neuchâtel NE, Switzerland - 434m
Climatic Zone:Cfb









