The SKYWAY Mont Blanc project represents a landmark in the panorama of Alpine cableway infrastructure. Combining functionality, design and respect for the environment, the system of the three Mont Blanc cableway stations is not only a major engineering work but also an example of contemporary architecture. Particular attention deserves the study of the facades, a key element not only from an aesthetic point of view but also in terms of energy efficiency and resistance to the mountain's extreme weather conditions.
The SKYWAY project includes three main stations: Courmayeur (1,300 m), Pavillon (2,173 m) and Punta Helbronner (3,466 m), connected by a cable car that transports visitors and mountain enthusiasts through a landscape of incomparable beauty. Each station is designed to blend harmoniously with its natural surroundings and optimize the user experience.
The materials chosen for the facades of SKYWAY stations are primarily glass and steel, selected for their durability, resistance to extreme weather conditions, and insulating properties. Glass, the predominant element, is a laminated and tempered type, capable of withstanding heavy snow and wind loads, as well as providing UV protection.
In terms of façade engineering, priority was given to thermal insulation and energy efficiency. The glazing benefits from a low-emissivity treatment that helps reduce heat loss and maintain a comfortable environment inside the stations, minimizing the use of artificial heating systems.
From an aesthetic point of view, facades play a crucial role in integrating the project into the alpine environment. The transparency of the glass allows a panoramic view of the surrounding landscape, creating a visual dialogue between interior and exterior. The use of steel, with its reflective finishes, adds an appearance of modernity and technology, while camouflaging the structures with the color of the rocks and glaciers. The theme of environmental sustainability was central to all phases of design and construction of the SKYWAY stations. The solutions adopted for the facades aim to optimize energy consumption and reduce environmental impact, in line with the most advanced sustainable building regulations.
AZA installed a 13.3 kWp photovoltaic system on the base station at Pontal d'Entrèves. This system consists of 92 panels of triple laminated glass with a thickness of 29.04 mm for a total area of 160 square meters. The main objective of this installation is to contribute to the energy supply of the base station, reducing environmental impact and energy consumption.
A second photovoltaic system has been installed at Punta Helbronner, in an extremely critical environment at an altitude of over 3500 meters. This plant is composed of 84 panels of triple laminated glass with double chamber and a thickness of 69.5 mm that allow a certain degree of transparency, the cells being installed remotely, this is one of the first applications in this configuration and the first in the world in terms of geographical application. Its rated power is 12.9 kWp. The particularity of this installation is that it is located in an area characterized by extreme working conditions, which require specific solutions for energy supply.
The working conditions of inverters and photovoltaic generators at Punta Helbronner were evaluated with great care. The altitude above 2000 meters and the rarefied air affect the electrical ratings of the inverters, making specific calibration necessary. In addition, the presence of snow and ice for much of the year results in higher direct and reflected solar radiation, further affecting the performance of the solar panels. To optimize the captured solar energy, different types of solar panels with power ratings of 160, 170 and 190 W were used. This variety allows for the best use of different exposures of the photovoltaic surface.
A significant aspect of the Skyway Mont Blanc project is the consideration of higher irradiance levels than in conventional installations, combined with reduced cell operating temperatures. This makes higher power available than under standard conditions, demonstrating how energy efficiency can be maintained even at high altitude locations.
CUSTOMER
Cordée Mont Blanc
LOCALITY.
Aosta
Italy
DESCRIPTION
Stick System Facade
Aluminum window
Coatings
Skylights
sq. m. 3,002
DESIGNER
Studio Arch. Cillara Rossi
YEAR
2017