Location: Alès (F)
Construction type: Retrofit
Architect: Jean-Francoise Rougé
Year of construction: 2001
Building typology: Administrative
Building skin application: Warm facade
PV module: Multicrystalline cells
Orientation: South
Tilt angle: 90°
PV surface: 100 m²
Nominal power: 9.6 kWp
Energy production: 6000 kWh/yr
Final yield: 625 kWh/kWp
Active solar ratio: < 25%
2001 - Tourism Office
The Municipality of Alès refurbished a church of the XI century heritage to create a touristic office. The realization of three bow-windows has allowed the enlargement of the functional surface of the office. In each one a PV system is integrated. A double insulating glass is mounted behind the solar system creating an air gap of 11 cm. The air of this internal buffer zone, heated from sun, pre-heats the office in winter and allow the natural ventilation during summer. The semi-transparent modules have a brown anti-reflective layer specifically chosen for architectural reasons and for a better integration within the historical context. The modules are installed mainly at 38° south east. Each bow window contains 70 modules that are connected to three inverters.
SOLAR ARCHITECTURE
| Energy and architectural concept | – Energy optimized – Maximum power |
– Partially adapted to building skin – Roof |
– Partially adapted to building skin – Facade |
– Total building skin |
| Energy and architectural language | – Evident emphasized PV | – Low recognizable PV | – Hidden PV Mimicry |
SOLAR AND BUILDING SKIN
| Standardization vs customization | – Standard PV components | – Low customized components | – Highly customized components | |
| Building skin technology | – Roof added system | – Facade added system | – Roof integrated system | – Facade integrated system |
SOLAR AND BUILDING ENERGY CONCEPT
| Solar and building energy efficiency | – No special energy target | – Standard energy target – (state of art, normative) | – High energy efficiency – (Passive-house, n-ZEB, PEB) | |
| New building or refurbishment | – New building | – Refurbishment (ordinary building) |
SOLAR AND URBAN CONTEXT
| Solar and urban density | – Low-density building | – Medium-density urban context | – High-density urban context | |




Via Flora Ruchat-Roncati 15
CH-6850, Mendrisio