The Building

Building post-intervention

Building post-intervention: Chateau Auvernier_Milvignes NE_Post_1_(C)ISSOL.jpg

Wine hangar « Le Corbet », Caves du Château d’Auvernier

The new « Le Corbet » wine hangar of the Caves du Château d’Auvernier (NE) was completed in June 2018. The owner opted for a terracotta coloured PV installation due to strict construction requirements, as the building is located in a protected area. Indeed the new wine hangar is situated in an exceptional location at the foot of the Château d’Auvernier being surrounded by Neuchâtel vineyards. The challenge of this project was to integrate this building into the existing environment by respecting the constraints related to heritage conservation, while offering an efficient and aesthetically effective solution.

The Solution

Solution post-intervention

Solution post-intervention: Chateau Auvernier_Milvignes NE_Post_2_(C)ISSOL.jpg
Solution post-intervention: Chateau Auvernier_Milvignes NE_Post_3_(C)ISSOL.jpg
Solution post-intervention: Chateau Auvernier_Milvignes NE_Post_4_(C)ISSOL.jpg
What is the Solution?

Due to strict construction requirements, as the building is located in a protected area, a terracotta coloured PV installation was the only suitable solution.

Why Does it work?

Integration of this building into the existing environment by respecting the constraints related to heritage conservation, while offering an efficient and aesthetically effective solution.

PROS
  • Adaptable to site requirements (colour, texture, shape)
  • Preservation of the appearance of the conservation area while producing energy in the new building.
CONS
  • Lower energy performance than standard modules.
  • Higher costs than a standard solution.
  • Lengthy procedures to obtain all necessary authorizations.
Type of installation
Replacement (building integrated - BIPV)
Part of the building
Roof only
Mounting system
information not available
Orientation
-42° (S-E)
Slope
22°
Area (m²)
205
Availability
Yes, available on the market
Manufacturer
ISSOL
Model
CENIT Solrif Terracotta
PV module format
Customized modules
PV module format max
1530 x 542 mm (1513 x 510 mm)
PV module type
Glass-Glass
PV cells technology
c-silicon
PV module efficiency
20.6%
Total PV power
23.94 kW
Surface PV power (W/m²)
108 W/m2
PV energy production
abt. 23'500 kWh/yr
Weight
information not available
Dummy modules used?
No
Frame
No
Overlapping
Yes
Colorization
Yes (coloured modules)
Colorization technology
Ceramic printing
Glass structure
Shiny (with antireflection)

Before retrofit

After retrofit

Assessment

PV installation type
Replacement (building integrated - BIPV)
PV position
Roof only
Coloured PV
Yes
Module efficiency
20% <= Efficiency
Building alteration
No
Investment cost
Medium Low
Circular approach
No

Location

2012 Milvignes NE, Switzerland - 439m
Climatic Zone:Cfb